{ "types" : { "Bookmark" : { "pluralLabel" : "Bookmarks" }, "Publication" : { "pluralLabel" : "Publications" }, "GoldStandardPublication" : { "pluralLabel" : "GoldStandardPublications" }, "GoldStandardBookmark" : { "pluralLabel" : "GoldStandardBookmarks" }, "Tag" : { "pluralLabel" : "Tags" }, "User" : { "pluralLabel" : "Users" }, "Group" : { "pluralLabel" : "Groups" }, "Sphere" : { "pluralLabel" : "Spheres" } }, "properties" : { "count" : { "valueType" : "number" }, "date" : { "valueType" : "date" }, "changeDate" : { "valueType" : "date" }, "url" : { "valueType" : "url" }, "id" : { "valueType" : "url" }, "tags" : { "valueType" : "item" }, "user" : { "valueType" : "item" } }, "items" : [ { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2ba3f5f98b856ec2aea9e7c29526e774f/brasche", "tags" : [ "Divalent","Lanthanoides,","Luminescence,","Magnetism,","Triflates","myown," ], "intraHash" : "ba3f5f98b856ec2aea9e7c29526e774f", "interHash" : "1116c3cea3605e93be40c289ff9b0453", "label" : "The Divalent Lanthanoid Triflates Ln(CF3SO3)2(CH3CN) (Ln=Sm, Eu): Structure, Luminescence, and Magnetism", "user" : "brasche", "description" : "", "date" : "2024-12-18 15:45:22", "changeDate" : "2024-12-18 15:50:52", "count" : 2, "pub-type": "article", "journal": "Chemistry \u2013 A European Journal", "year": "2024", "url": "https://onlinelibrary.wiley.com/doi/abs/10.1002/chem.202400462", "author": [ "Niko T. Flosbach","Bertold Rasche","Leonhard Rochels","Sabrina Disch","Claudia Wickleder","Matthias Adlung","Pia Fischer","Mathias S. Wickleder" ], "authors": [ {"first" : "Niko T.", "last" : "Flosbach"}, {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Leonhard", "last" : "Rochels"}, {"first" : "Sabrina", "last" : "Disch"}, {"first" : "Claudia", "last" : "Wickleder"}, {"first" : "Matthias", "last" : "Adlung"}, {"first" : "Pia", "last" : "Fischer"}, {"first" : "Mathias S.", "last" : "Wickleder"} ], "volume": "30","number": "24","pages": "e202400462","note": "\\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1002/chem.202400462","abstract": "The reaction of the trivalent lanthanoide triflates Ln(OTf)3 (Ln=Sm, Eu; OTf=CF3SO3−) with the respective metals in acetonitrile leads to the Ln(II)-triflates Eu(OTf)2(CH3CN) (monoclinic, P21/n, Z=4, a=1053.54(1), b=610.28(5), c=1946.92(2) pm, β =98.611(4)) and Sm(OTf)2(CH3CN) (monoclinic, P21/n, Z=4, a=1054.41(4), b=612.16(2), c=1952.65(7) pm, β =98.524(2)). The isotypic strontium compound Sr(OTf)2(CH3CN) (monoclinic, P21/n, Z=4, a=1056.39(5), b=610.05(3), c=1950.1(1) pm, β =98.900(2)°) has been obtained from SrCO3 and triflic acid. The compounds have been investigated by X-ray diffraction, vibrational spectroscopy, luminescence spectroscopy, cyclic voltammetry, thermal analysis, and magnetic measurements.", "copyright" : "© 2024 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH", "shorttitle" : "The Divalent Lanthanoid Triflates Ln(CF3SO3)2(CH3CN) (Ln=Sm, Eu)", "language" : "en", "file" : "Flosbach et al. - 2024 - The Divalent Lanthanoid Triflates Ln(CF3SO3)2(CH3C.pdf:C\\:\\\\Users\\\\knowk\\\\bwSyncShare\\\\Zotero\\\\storage\\\\A9M7DGRP\\\\Flosbach et al. - 2024 - The Divalent Lanthanoid Triflates Ln(CF3SO3)2(CH3C.pdf:application/pdf;Snapshot:C\\:\\\\Users\\\\knowk\\\\bwSyncShare\\\\Zotero\\\\storage\\\\T6AJUEPT\\\\chem.html:text/html", "issn" : "1521-3765", "doi" : "10.1002/chem.202400462", "urldate" : "2024-05-23", "bibtexKey": "flosbach_divalent_2024" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/29be72580dcebb187295a752d06b27f52/brasche", "tags" : [ "myown" ], "intraHash" : "9be72580dcebb187295a752d06b27f52", "interHash" : "9b02fb63defa506e71260b1e1b6aca4c", "label" : "Discovering Perovskite-Derived Tungsten Bronzes from In Situ Diffraction of Electrochemical Rubidium and Cesium Intercalation", "user" : "brasche", "description" : "", "date" : "2024-12-18 15:41:46", "changeDate" : "2024-12-18 15:41:46", "count" : 2, "pub-type": "article", "booktitle": "Chemistry of Materials", "year": "2024", "url": "https://doi.org/10.1021/acs.chemmater.4c02900", "author": [ "Iuliia Neumann","Iuliia Kosolapova","Bertold Rasche" ], "authors": [ {"first" : "Iuliia", "last" : "Neumann"}, {"first" : "Iuliia", "last" : "Kosolapova"}, {"first" : "Bertold", "last" : "Rasche"} ], "volume": "30","number": "24","pages": "e202400462--58","abstract": "Perovskite-derived tungsten bronzes are formed from tungsten oxide by electrochemical intercalation of all alkali metals from aqueous solutions. In two steps, we yield two different polymorphs, where the first step is reversible and the second step is irreversible. The electrochemical approach affords precise control of the composition, while ex situ X-ray diffraction and particularly in situ X-ray diffraction allow the analysis of the atomic structure. For the heavy alkali metals, rubidium and cesium, the in situ synchrotron X-ray diffraction experiments reveal in sum four new structures and their formation process. The irreversible deintercalation step yields at room temperature, the α-WO3 phase, a tungsten oxide polymorph which is thermodynamically only stable above 1073 K. Finally, analyzing the full alkali metal series allows us to conclude that the symmetry and structure of the formed bronzes are dictated by the electron count on the tungsten oxide network and the size of the ions plays a negligible role.", "issn" : "08974756", "doi" : "10.1021/acs.chemmater.4c02900", "bibtexKey": "rasche2024discovering" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/27886c32024486c2cd565e912292bd8dd/brasche", "tags" : [ "myown","solid_state_chemistry" ], "intraHash" : "7886c32024486c2cd565e912292bd8dd", "interHash" : "aee4b6ef13a25e7eb70e3e2b132d6282", "label" : "Trendbericht Festkörperchemie und Materialforschung 2024", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:48:00", "changeDate" : "2024-03-25 12:49:34", "count" : 2, "pub-type": "article", "journal": "Nachrichten aus der Chemie", "year": "2024", "url": "https://onlinelibrary.wiley.com/doi/10.1002/nadc.20244139260", "author": [ "Bertold Rasche","Heidi Annemarie Schwartz" ], "authors": [ {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Heidi Annemarie", "last" : "Schwartz"} ], "volume": "72","number": "1","pages": "50-58", "language" : "de", "file" : "Snapshot:files/7050/nadc.html:text/html", "doi" : "10.1002/nadc.20244139260", "urldate" : "2024-01-05", "bibtexKey": "rasche_trendbericht_2024" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/22303e5a13386b3f40c76bdc18028561f/brasche", "tags" : [ "bismuth","density_functional_theory","myown","nanotubes" ], "intraHash" : "2303e5a13386b3f40c76bdc18028561f", "interHash" : "01e94d4ad9f2689cfd63230544e4b4bf", "label" : "Stability and Electronic Properties of Bismuth Nanotubes", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-12-18 15:50:10", "count" : 1, "pub-type": "article", "journal": "J. Phys. Chem. C", "year": "2010", "url": "http://dx.doi.org/10.1021/jp1081565", "author": [ "Bertold Rasche","Gotthard Seifert","Andrey Enyashin" ], "authors": [ {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Gotthard", "last" : "Seifert"}, {"first" : "Andrey", "last" : "Enyashin"} ], "volume": "114","number": "50","pages": "22092--22097","abstract": "Recently fabricated double-walled bismuth nanotubes were the first elemental nanotubes with clearly expressed layered structure analogous to carbon nanotubes. Here the results from quantum-mechanical density-functional tight-binding (DFTB) calculations are presented for Bi nanotubes of experimentally observed diameters. The calculations uncover the nature of the experimentally observed shape of bismuth nanotubes as an interplay between relatively low strain energies of Bi nanotubes and rather strong van der Waals interaction between the layers. They evidence the stability of the hexagonal prismatic morphology for double-walled zigzag nanotubes. Band structure calculations reveal that the Bi nanotubes should be semiconducting with the band gap around 0.5 eV.", "file" : "ACS Full Text Snapshot:files/742/jp1081565.html:text/html;Rasche et al_2010_Stability and Electronic Properties of Bismuth Nanotubes.pdf:files/741/Rasche et al_2010_Stability and Electronic Properties of Bismuth Nanotubes.pdf:application/pdf", "issn" : "1932-7447", "doi" : "10.1021/jp1081565", "urldate" : "2012-09-20", "bibtexKey": "rasche_stability_2010" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/28f06b70a100be4d2907acb6486975eb3/brasche", "tags" : [ "bismuth","myown","subiodides","topological_insulator","transmission_electron_microscopy" ], "intraHash" : "8f06b70a100be4d2907acb6486975eb3", "interHash" : "e46b6326fe6a13a701ecfd731a358f7d", "label" : "Crystal Growth and Real Structure Effects of the First Weak 3D Stacked Topological Insulator Bi$_14$Rh$_3$I$_9$", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-12-18 15:49:52", "count" : 1, "pub-type": "article", "journal": "Chem. Mater.", "year": "2013", "url": "/brokenurl#zotero://attachment/870/", "author": [ "Bertold Rasche","Anna Isaeva","Alexander Gerisch","Martin Kaiser","Wouter Van den Broek","Christoph T. Koch","Ute Kaiser","Michael Ruck" ], "authors": [ {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Anna", "last" : "Isaeva"}, {"first" : "Alexander", "last" : "Gerisch"}, {"first" : "Martin", "last" : "Kaiser"}, {"first" : "Wouter", "last" : "Van den Broek"}, {"first" : "Christoph T.", "last" : "Koch"}, {"first" : "Ute", "last" : "Kaiser"}, {"first" : "Michael", "last" : "Ruck"} ], "volume": "25","number": "11","pages": "2359--2364", "file" : "Crystal Growth and Real Structure Effects of the First Weak 3D Stacked Topological Insulator Bi14Rh3I9 - Chemistry of Materials (ACS Publications):files/938/870.html:text/html;Rasche et al_2013_Crystal Growth and Real Structure Effects of the First Weak 3D Stacked.pdf:files/871/Rasche et al_2013_Crystal Growth and Real Structure Effects of the First Weak 3D Stacked.pdf:application/pdf;Rasche et al_2013_Crystal Growth and Real Structure Effects of the First Weak 3D Stacked.pdf:files/1268/Rasche et al_2013_Crystal Growth and Real Structure Effects of the First Weak 3D Stacked.pdf:application/pdf;Rasche et al_2013_Crystal Growth and Real Structure Effects of the First Weak 3D Stacked.pdf:files/4098/Rasche et al_2013_Crystal Growth and Real Structure Effects of the First Weak 3D Stacked.pdf:application/pdf", "issn" : "0897-4756, 1520-5002", "doi" : "10.1021/cm4010823", "urldate" : "2013-09-17", "bibtexKey": "rasche_crystal_2013" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2ca6e7e0cd68b1ad5aa2dab67debf5194/brasche", "tags" : [ "Dopamine_adsorption","Graphene","Graphene_oxide","Surface_area_characterisation","UV-vis_spectroscopy","myown" ], "intraHash" : "ca6e7e0cd68b1ad5aa2dab67debf5194", "interHash" : "a95ec89f73c3719b9a017eb2daf22e26", "label" : "Surface area measurements of graphene and graphene oxide samples: Dopamine adsorption as a complement or alternative to methylene blue?", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-12-18 15:49:38", "count" : 2, "pub-type": "article", "journal": "Appl. Mat. Today", "year": "2020", "url": "http://www.sciencedirect.com/science/article/pii/S2352940719306250", "author": [ "Lifu Chen","Christopher Batchelor-McAuley","Bertold Rasche","Colin Johnston","Neil Hindle","Richard G. Compton" ], "authors": [ {"first" : "Lifu", "last" : "Chen"}, {"first" : "Christopher", "last" : "Batchelor-McAuley"}, {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Colin", "last" : "Johnston"}, {"first" : "Neil", "last" : "Hindle"}, {"first" : "Richard G.", "last" : "Compton"} ], "volume": "18","pages": "100506","abstract": "The possible use of dopamine, monitored spectroscopically, as a probe molecule for surface area measurements is investigated. Using high surface area carbon materials, including both graphene and graphene oxide (GO), the method is established as a complement or alternative to methylene blue or conventional N2 (BET) adsorption. The molecular reorientation (flat to vertical) of dopamine on the graphene and GO surface provides a direct indication of the monolayer coverage and the rapid adsorption (within 10\u202Fmin to saturation) offers high convenience. The smaller dopamine molecule size and less self-repulsion compared to methylene blue can be considered to yield a more closely-packed surface coverage on the materials of interest. Especially for materials with complex morphologies and internal structures, the dopamine adsorption will therefore lead to a more \u2018correct\u2019 measurement.", "shorttitle" : "Surface area measurements of graphene and graphene oxide samples", "language" : "en", "file" : "Chen et al_2020_Surface area measurements of graphene and graphene oxide samples.pdf:files/4442/Chen et al_2020_Surface area measurements of graphene and graphene oxide samples.pdf:application/pdf;ScienceDirect Snapshot:files/4441/S2352940719306250.html:text/html", "issn" : "2352-9407", "doi" : "10.1016/j.apmt.2019.100506", "urldate" : "2020-03-27", "bibtexKey": "chen_surface_2020" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/29031f528c61901eae40311bf5384ed7a/brasche", "tags" : [ "Bismuth","Covalent_metals","Layered_metals","Platinum","Subvalent_compounds","myown" ], "intraHash" : "9031f528c61901eae40311bf5384ed7a", "interHash" : "63e650f68ab3929b737c9f8445b94708", "label" : "The Bismuth Subiodides Bi$_8$Pt$_5$I$_3$ and Bi$_16$Pt$_11$I$_6$ \u2013 Layered Metals with Covalent Platinum Networks", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-12-18 15:49:27", "count" : 1, "pub-type": "article", "journal": "Z. Anorg. Allg. Chem.", "year": "2015", "url": "http://onlinelibrary.wiley.com/doi/10.1002/zaac.201500120/abstract", "author": [ "Bertold Rasche","Walter Schnelle","Michael Ruck" ], "authors": [ {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Walter", "last" : "Schnelle"}, {"first" : "Michael", "last" : "Ruck"} ], "volume": "641","number": "8-9","pages": "1444--1452","abstract": "Black shiny platelets of Bi8Pt5I3 and Bi16Pt11I6 were crystallized from melts of the metals and BiI3. Despite very similar compositions and close peritectics, a protocol for targeted synthesis could be developed based on differences of the decomposition pressures. Bi8Pt5I3 has a monoclinic crystal structure [space group C2/m; a = 1850.7(2) pm, b = 391.46(3) pm, c = 1340.5(1) pm, β = 113.28(1)°], in which corrugated intermetallic layers alternate with monolayers of non-coordinating iodide ions. The platinum atoms are in square, trigonal-prismatic, or capped trigonal-prismatic coordination by bismuth atoms. Additional covalent bonding between platinum atoms defines flat stripes of five atoms width inside the intermetallic layer. Bi16Pt11I6 crystallizes in the acentric tetragonal space group P4212 with a = 1386.6(1) pm and c = 924.5(1) pm. Corresponding to the higher transition-metal content, the covalent network of platinum atoms is two-dimensional. The node connectivity in the network is three or four; the total coordination number of all platinum atoms is ten. Single layers of iodide ions separate the intermetallic layers. Two-thirds of the iodide ions are coordinating bismuth atoms that protrude from the intermetallic layer, forming [BiI4] squares. Temperature-dependent electrical resistivity and magnetic susceptibility measurements on polycrystalline powders indicate that Bi8Pt5I3 and Bi16Pt11I6 are diamagnetic metals. The calculated electronic band structures confirm pseudo two-dimensional metallic character only for Bi8Pt5I3.", "copyright" : "Copyright © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim", "language" : "en", "file" : "Rasche et al_2015_The Bismuth Subiodides Bi8Pt5I3 and Bi16Pt11I6 \u2013 Layered Metals with Covalent.pdf:files/1235/Rasche et al_2015_The Bismuth Subiodides Bi8Pt5I3 and Bi16Pt11I6 \u2013 Layered Metals with Covalent.pdf:application/pdf;Rasche et al_2015_The Bismuth Subiodides Bi8Pt5I3 and Bi16Pt11I6 \u2013 Layered Metals with Covalent.pdf:files/1271/Rasche et al. - 2015 - The Bismuth Subiodides Bi8Pt5I3 and Bi16Pt11I6 \u2013 L.pdf:application/pdf;Snapshot:files/1270/full.html:text/html", "issn" : "1521-3749", "doi" : "10.1002/zaac.201500120", "urldate" : "2015-07-17", "bibtexKey": "rasche_bismuth_2015" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2da893f0ba4b76e4884accae1c27a5960/brasche", "tags" : [ "imported","myown" ], "intraHash" : "da893f0ba4b76e4884accae1c27a5960", "interHash" : "d5b05e4ab615254d7167ccbb5233d7f5", "label" : "Determination of Cleavage Energy and Efficient Nanostructuring of Layered Materials by Atomic Force Microscopy", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-12-18 15:49:14", "count" : 2, "pub-type": "article", "journal": "Nano Lett.", "year": "2022", "url": "https://doi.org/10.1021/acs.nanolett.1c04868", "author": [ "Bertold Rasche","Julius Brunner","Tim Schramm","Madhav Prasad Ghimire","Ulrike Nitzsche","Bernd Büchner","Romain Giraud","Manuel Richter","Joseph Dufouleur" ], "authors": [ {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Julius", "last" : "Brunner"}, {"first" : "Tim", "last" : "Schramm"}, {"first" : "Madhav Prasad", "last" : "Ghimire"}, {"first" : "Ulrike", "last" : "Nitzsche"}, {"first" : "Bernd", "last" : "Büchner"}, {"first" : "Romain", "last" : "Giraud"}, {"first" : "Manuel", "last" : "Richter"}, {"first" : "Joseph", "last" : "Dufouleur"} ], "volume": "22","number": "9","pages": "3550--3556","note": "Publisher: American Chemical Society","abstract": "A method is presented to use atomic force microscopy to measure the cleavage energy of van der Waals materials and similar quasi-two-dimensional materials. The cleavage energy of graphite is measured to be 0.36 J/m2, in good agreement with literature data. The same method yields a cleavage energy of 0.6 J/m2 for MoS2 as a representative of the dichalcogenides. In the case of the weak topological insulator Bi14Rh3I9 no cleavage energy is obtained, although cleavage is successful with an adapted approach. The cleavage energies of these materials are evaluated by means of density-functional calculations and literature data. This further validates the presented method and sets an upper limit of about 0.7 J/m2 to the cleavage energy that can be measured by the present setup. In addition, this method can be used as a tool for manipulating exfoliated flakes, prior to or after contacting, which may open a new route for the fabrication of nanostructures.", "file" : "ACS Full Text Snapshot:files/5660/acs.nanolett.html:text/html;Rasche et al_2022_Determination of Cleavage Energy and Efficient Nanostructuring of Layered.pdf:files/5659/Rasche et al_2022_Determination of Cleavage Energy and Efficient Nanostructuring of Layered.pdf:application/pdf", "issn" : "1530-6984", "doi" : "10.1021/acs.nanolett.1c04868", "urldate" : "2022-05-12", "bibtexKey": "rasche_determination_2022" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/257d2dfb42a2ca18db21fc14dd9b5d186/brasche", "tags" : [ "Cyclic-voltammetry","Electrodeposition","Polyselenides","Selenium","myown" ], "intraHash" : "57d2dfb42a2ca18db21fc14dd9b5d186", "interHash" : "9668aeb5f44b10872500e14dc3325572", "label" : "Polyselenides on the route to electrodeposited selenium", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-12-18 15:48:59", "count" : 2, "pub-type": "article", "journal": "J. Electroanal. Chem.", "year": "2019", "url": "http://www.sciencedirect.com/science/article/pii/S1572665719300219", "author": [ "Bertold Rasche","Hatem M. A. Amin","Simon J. Clarke","Richard G. Compton" ], "authors": [ {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Hatem M. A.", "last" : "Amin"}, {"first" : "Simon J.", "last" : "Clarke"}, {"first" : "Richard G.", "last" : "Compton"} ], "volume": "835","pages": "239--247","abstract": "The electrochemical oxidation of aqueous solutions of hydrogen selenide (HSe−) and of hydrogen polyselenide ions (HSex−) on glassy carbon electrodes at pH\u202F=\u202F9.2 is reported. In both cases, the oxidation leads to deposits of selenium. The role of polyselenides as intermediates in the process is demonstrated. At 25\u202F°C amorphous selenium is formed whereas at 70\u202F°C crystalline selenium is deposited. The possible use of selenium films for technological purposes is discussed.", "file" : "Rasche et al_2019_Polyselenides on the route to electrodeposited selenium.pdf:files/3636/Rasche et al_2019_Polyselenides on the route to electrodeposited selenium.pdf:application/pdf;ScienceDirect Snapshot:files/3635/S1572665719300219.html:text/html", "issn" : "1572-6657", "doi" : "10.1016/j.jelechem.2019.01.015", "urldate" : "2019-03-18", "bibtexKey": "rasche_polyselenides_2019" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/26ea0f5aefd9f2adb33bddef071772f84/brasche", "tags" : [ "bismuth","density_functional_theory","myown","subiodides","topological_insulator" ], "intraHash" : "6ea0f5aefd9f2adb33bddef071772f84", "interHash" : "0bc7f01176094aa4dfd3e8e976ced2cf", "label" : "Correlation between topological band character and chemical bonding in a Bi$_14$Rh$_3$I$_9$-based family of insulators", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-12-18 15:48:46", "count" : 1, "pub-type": "article", "journal": "Sci. Rep.", "year": "2016", "url": "https://www.nature.com/articles/srep20645", "author": [ "Bertold Rasche","Anna Isaeva","Michael Ruck","Klaus Koepernik","Manuel Richter","Jeroen van den Brink" ], "authors": [ {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Anna", "last" : "Isaeva"}, {"first" : "Michael", "last" : "Ruck"}, {"first" : "Klaus", "last" : "Koepernik"}, {"first" : "Manuel", "last" : "Richter"}, {"first" : "Jeroen", "last" : "van den Brink"} ], "volume": "6","pages": "20645","abstract": "Recently the presence of topologically protected edge-states in Bi14Rh3I9 was confirmed by scanning tunnelling microscopy consolidating this compound as a weak 3D topological insulator (TI). Here, we present a density-functional-theory-based study on a family of TIs derived from the Bi14Rh3I9 parent structure via substitution of Ru, Pd, Os, Ir and Pt for Rh. Comparative analysis of the band-structures throughout the entire series is done by means of a unified minimalistic tight-binding model that evinces strong similarity between the quantum-spin-Hall (QSH) layer in Bi14Rh3I9 and graphene in terms of -molecular orbitals. Topologically non-trivial energy gaps are found for the Ir-, Rh-, Pt- and Pd-based systems, whereas the Os- and Ru-systems remain trivial. Furthermore, the energy position of the metal -band centre is identified as the parameter which governs the evolution of the topological character of the band structure through the whole family of TIs. The -band position is shown to correlate with the chemical bonding within the QSH layers, thus revealing how the chemical nature of the constituents affects the topological band character.", "copyright" : "2016 Nature Publishing Group", "language" : "en", "file" : "Rasche et al_2016_Correlation between topological band character and chemical bonding in a.pdf:files/3986/Rasche et al_2016_Correlation between topological band character and chemical bonding in a.pdf:application/pdf;Snapshot:files/3987/srep20645.html:text/html", "issn" : "2045-2322", "doi" : "10.1038/srep20645", "urldate" : "2019-09-30", "bibtexKey": "rasche_correlation_2016" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/27fa0813f7aac11ba9ddd4189db4a46a8/brasche", "tags" : [ "Coordination_compounds","Diselenides","Iridium","Mixed-valent_compounds","Ring-shaped_complexes","myown" ], "intraHash" : "7fa0813f7aac11ba9ddd4189db4a46a8", "interHash" : "74a9e832d140503bb14b04c150d62a03", "label" : "Mixed-Valent Selenium Ligands in the Uncharged Iridium Complexes [Ir$_4$Se$_10$Br$_16$] and [Ir$_6$Se$_8$Cl$_30$]", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-12-18 15:48:32", "count" : 1, "pub-type": "article", "journal": "Eur. J. Inorg. Chem.", "year": "2015", "url": "http://onlinelibrary.wiley.com/doi/10.1002/ejic.201500659/abstract", "author": [ "Karoline Stolze","Bertold Rasche","Michael Ruck" ], "authors": [ {"first" : "Karoline", "last" : "Stolze"}, {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Michael", "last" : "Ruck"} ], "volume": "2015","number": "26","pages": "4343--4347","abstract": "The reaction of Ir with Se and SeBr4 at 200 °C yields shiny vermillion slate-like crystals of the new compound Ir4Se10Br16. Single-crystal X-ray diffraction revealed an orthorhombic unit cell, space group Pccn, with lattice parameters a = 1515.0(1) pm, b = 1534.4(1) pm, and c = 1514.5(1) pm at 296(1) K. The crystal structure consists of uncharged tetranuclear iridium complexes [Ir4Se10Br16] with C2 symmetry. In the [(Ir3+)4(μ4-η2-Se22\u2013)2(μ-ηSe-[SeBr]\u2013)2(ηSe-SeBr2)4(μ-Br\u2013)2(Br\u2013)4] complex, each of the iridium atoms is coordinated octahedrally by four selenium and two bromine atoms. Selenium adopts three different oxidation states: \u2013I in the fourfold-bonded diselenide dumbbell, ±0 in the bridging [SeBr]\u2013 unit, and +II in the terminal SeBr2 ligand. An analogous reaction with SeCl4 at 300 °C yields orange air-stable crystals of Ir6Se8Cl30. The triclinic crystal structure [space group P\\$\\textbackslashbar \\1\\\\$, a = 891.2(1) pm, b = 1064.6(1) pm, c = 1263.0(1) pm, α = 94.458(3)°, β = 106.900(3)°, and γ = 101.410(3)° at 296(1) K] consists of uncharged hexanuclear iridium complexes with the structured formula [(Ir3+)6(μ-ηSe-[SeCl]\u2013)2(ηSe-SeCl2)6(μ-Cl\u2013)10(Cl\u2013)6] and shows structural motifs similar to Ir4Se10Br16 and IrSeCl5. The triclinic structure of IrSeCl5 [P\\$\\textbackslashbar \\1\\\\$, a = 1223.4(1) pm, b = 1408.7(1) pm, c = 1499.5(1) pm, α = 115.72(1)°, β = 106.05(1)°, and γ = 96.38(1)° at 296(1) K] is homeotypic to monoclinic RhSCl5.", "copyright" : "Copyright © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim", "language" : "en", "file" : "Snapshot:files/1406/abstract.html:text/html;Stolze et al_2015_Mixed-Valent Selenium Ligands in the Uncharged Iridium Complexes [Ir4Se10Br16].pdf:files/1407/Stolze et al_2015_Mixed-Valent Selenium Ligands in the Uncharged Iridium Complexes [Ir4Se10Br16].pdf:application/pdf", "issn" : "1099-0682", "doi" : "10.1002/ejic.201500659", "urldate" : "2016-03-09", "bibtexKey": "stolze_mixed-valent_2015" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2d2ff233582f2d7d386e6ade93892d198/brasche", "tags" : [ "bismuth","density_functional_theory","myown","subiodides" ], "intraHash" : "d2ff233582f2d7d386e6ade93892d198", "interHash" : "ad19bf3428dfdf9b0494caf8cc8fdc82", "label" : "High-Temperature-Phase Bi$_4$RhI$_2$: Electronic Localization by Structural Distortion", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-12-18 15:48:19", "count" : 1, "pub-type": "article", "journal": "Inorg. Chem.", "year": "2018", "url": "http://pubs.acs.org/doi/10.1021/acs.inorgchem.8b00464", "author": [ "Bertold Rasche","Michael Ruck" ], "authors": [ {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Michael", "last" : "Ruck"} ], "volume": "57","number": "9","pages": "5507--5513","abstract": "The metal-rich compound Bi4RhI2 was discovered in a thorough investigation of the Bi−Rh−I phase system. The monoclinic crystal structure was solved via single-crystal X-ray diffraction. It consists of infinite strands of face-sharing distorted square antiprisms ∞1 [RhBi8/2]2+, which are separated by iodide ions. Bi4RhI2 is the high-temperature phase related to the weak three-dimensional topological insulator Bi14Rh3I9 (Bi4.67RhI3) and forms peritectically at 441 °C, where Bi14Rh3I9 decomposes. The structure of Bi4RhI2 is compared with Bi4RuI2 and Bi9Rh2I3, all three sharing a similar intermetallic strand-like structure, although their overall count of valence electrons differs. A chemical bonding analysis of Bi4RhI2 via the electron localizability indicator reveals a complex bonding pattern with covalent bonds between rhodium and bismuth, as well as between bismuth atoms and suggests a possible explanation for the formation of this structure type. Band structure calculations indicate a narrow band gap of 157 meV, which was verified by resistivity measurements on a pressed powder pellet and on single crystals. In a broader context, this strandlike structure type accounts for unusual physical phenomena, such as the transition into a charge-density-wave phase.", "shorttitle" : "High-Temperature-Phase Bi $_4$ RhI $_2$", "language" : "en", "file" : "ic8b00464_si_001.pdf:files/5579/ic8b00464_si_001.pdf:application/pdf;Rasche and Ruck - 2018 - High-Temperature-Phase Bi sub4sub RhI sub2.pdf:files/3439/Rasche and Ruck - 2018 - High-Temperature-Phase Bi sub4sub RhI sub2.pdf:application/pdf", "issn" : "0020-1669, 1520-510X", "doi" : "10.1021/acs.inorgchem.8b00464", "urldate" : "2018-06-14", "bibtexKey": "rasche_high-temperature-phase_2018" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/26f376283ec1241d91c43ab6ccbf35a44/brasche", "tags" : [ "imported","myown" ], "intraHash" : "6f376283ec1241d91c43ab6ccbf35a44", "interHash" : "86b340f780ea08d90729f00c0d3f6096", "label" : "9th Carnival Conference Session 2022 (CCS-2022)", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-12-18 15:48:04", "count" : 2, "pub-type": "article", "journal": "Nachrichten aus der Chemie", "year": "2022", "url": "https://onlinelibrary.wiley.com/doi/abs/10.1002/nadc.20224129746", "author": [ "Jörn Bruns","Sabrina Disch","Erik Strub","Bertold Rasche" ], "authors": [ {"first" : "Jörn", "last" : "Bruns"}, {"first" : "Sabrina", "last" : "Disch"}, {"first" : "Erik", "last" : "Strub"}, {"first" : "Bertold", "last" : "Rasche"} ], "volume": "70","number": "9","pages": "91--91","note": "\\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1002/nadc.20224129746","abstract": "AbstractZum 9. Mal fand in diesem Jahr am Department Chemie der Universität Köln die \u201ECarnival Conference Session\u201C (CCS-2022) mit etwa 50 Teilnehmer:innen statt. Corona hatte den ursprünglich karnevalistischen Termin dieses Jahr in den Sommer verschoben. Zur CCS werden aufstrebende Forscher:innen aus allen Bereichen der Chemie nach Köln eingeladen. Die Vorträge adressieren Forschende aus den Arbeitsgruppen und Studierende. Das interdisziplinäre Programm bestand in diesem Jahr aus vier Vorträgen und bot Einblicke in die Spektroskopie, die Batterieforschung, das Züchten von Volumenkristallen und die Hochdruckchemie von Uran.", "language" : "de", "file" : "Snapshot:files/5953/nadc.html:text/html", "issn" : "1868-0054", "doi" : "10.1002/nadc.20224129746", "urldate" : "2022-11-14", "bibtexKey": "bruns_9th_2022" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/27c73ca61f619649e379778dca33aca80/brasche", "tags" : [ "Bismuth,","Iodine,","Pseudosymmetry,","Rhodium","myown," ], "intraHash" : "7c73ca61f619649e379778dca33aca80", "interHash" : "a3c677edd6b48c12c950709a33ed8613", "label" : "The Layered Structure of Bi$_14$Rh$_3$I$_9$", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-12-18 15:47:36", "count" : 1, "pub-type": "article", "journal": "Z. Anorg. Allg. Chem.", "year": "2012", "url": "http://onlinelibrary.wiley.com/doi/10.1002/zaac.201204062/abstract", "author": [ "Bertold Rasche","Alexander Gerisch","Martin Kaiser","Michael Ruck" ], "authors": [ {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Alexander", "last" : "Gerisch"}, {"first" : "Martin", "last" : "Kaiser"}, {"first" : "Michael", "last" : "Ruck"} ], "volume": "638","number": "10","pages": "1597--1597", "copyright" : "Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim", "language" : "en", "file" : "Rasche et al_2012_The Layered Structure of Bi14Rh3I9.pdf:files/731/Rasche et al_2012_The Layered Structure of Bi14Rh3I9.pdf:application/pdf;Snapshot:files/730/abstract.html:text/html", "issn" : "1521-3749", "doi" : "10.1002/zaac.201204062", "urldate" : "2012-08-30", "bibtexKey": "rasche_layered_2012" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2e8c0f1acacebb1648a4f5917a28f1ba2/brasche", "tags" : [ "bismuth","density_functional_theory","myown","subiodides","topological_insulator" ], "intraHash" : "e8c0f1acacebb1648a4f5917a28f1ba2", "interHash" : "7dcbf18c8d01702810e3ba7744f380ca", "label" : "Stacked topological insulator built from bismuth-based graphene sheet analogues", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-12-18 15:46:30", "count" : 1, "pub-type": "article", "journal": "Nat. Mater.", "year": "2013", "url": "http://www.nature.com/nmat/journal/v12/n5/full/nmat3570.html", "author": [ "Bertold Rasche","Anna Isaeva","Michael Ruck","Sergey Borisenko","Volodymyr Zabolotnyy","Bernd Büchner","Klaus Koepernik","Carmine Ortix","Manuel Richter","Jeroen van den Brink" ], "authors": [ {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Anna", "last" : "Isaeva"}, {"first" : "Michael", "last" : "Ruck"}, {"first" : "Sergey", "last" : "Borisenko"}, {"first" : "Volodymyr", "last" : "Zabolotnyy"}, {"first" : "Bernd", "last" : "Büchner"}, {"first" : "Klaus", "last" : "Koepernik"}, {"first" : "Carmine", "last" : "Ortix"}, {"first" : "Manuel", "last" : "Richter"}, {"first" : "Jeroen", "last" : "van den Brink"} ], "volume": "12","number": "5","pages": "422--425","abstract": "Commonly, materials are classified as either electrical conductors or insulators. The theoretical discovery of topological insulators has fundamentally challenged this dichotomy. In a topological insulator, the spin\u2013orbit interaction generates a non-trivial topology of the electronic band structure dictating that its bulk is perfectly insulating, whereas its surface is fully conducting. The first topological insulator candidate material put forward\u2014graphene\u2014is of limited practical use because its weak spin\u2013orbit interactions produce a bandgap of ˜ 0.01 K. Recent reexaminations of Bi2Se3 and Bi2Te3, however, have firmly categorized these materials as strong three-dimensional topological insulators. We have synthesized the first bulk material belonging to an entirely different, weak, topological class, built from stacks of two-dimensional topological insulators: Bi14Rh3I9. Its Bi\u2013Rh sheets are graphene analogues, but with a honeycomb net composed of RhBi8 cubes rather than carbon atoms. The strong bismuth-related spin\u2013orbit interaction renders each graphene-like layer a topological insulator with a 2,400 K bandgap.", "copyright" : "© 2013 Nature Publishing Group", "language" : "en", "file" : "Rasche et al_2013_Stacked topological insulator built from bismuth-based graphene sheet analogues.pdf:files/839/Rasche et al_2013_Stacked topological insulator built from bismuth-based graphene sheet analogues.pdf:application/pdf;Rasche et al_2013_Stacked topological insulator built from bismuth-based graphene sheet analogues.pdf:files/848/Rasche et al_2013_Stacked topological insulator built from bismuth-based graphene sheet analogues.pdf:application/pdf;Snapshot:files/847/nmat3570.html:text/html;Snapshot:files/3091/nmat3570.html:text/html;Snapshot:files/3235/nmat3570.html:text/html", "issn" : "1476-1122", "doi" : "10.1038/nmat3570", "urldate" : "2013-04-24", "bibtexKey": "rasche_stacked_2013" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2a3de8bb9b570576ae22b677f864c682f/brasche", "tags" : [ "Pseudomorphosis","Subvalent_compounds","heterogeneous_reactions","intermetallic_phases","myown","topochemistry" ], "intraHash" : "a3de8bb9b570576ae22b677f864c682f", "interHash" : "f7e11901f2dd6232a56694d14c1274f6", "label" : "Low-Temperature Topochemical Transformation of Bi$_13$Pt$_3$I$_7$ into the New Layered Honeycomb Metal Bi$_12$Pt$_3$I$_5$", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-12-18 15:46:11", "count" : 1, "pub-type": "article", "journal": "Chem. Eur. J.", "year": "2014", "url": "http://onlinelibrary.wiley.com/doi/10.1002/chem.201404789/abstract", "author": [ "Martin Kaiser","Bertold Rasche","Anna Isaeva","Michael Ruck" ], "authors": [ {"first" : "Martin", "last" : "Kaiser"}, {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Anna", "last" : "Isaeva"}, {"first" : "Michael", "last" : "Ruck"} ], "volume": "20","number": "51","pages": "17152--17160","abstract": "Ordered single-crystals of the metallic subiodide Bi13Pt3I7 were grown and treated with n-butyllithium. At 45\u2009°C, complete pseudomorphosis to Bi12Pt3I5 was achieved within two\u2005days. The new compound is air-stable and contains the same \\$\\\\\\\\textbackslashhfill 2\\textbackslashatop \\textbackslashhfill \\textbackslashinfty \\\\\\\\$[(PtBi8/2)3I]n+ honeycomb nets and iodide layers as the starting material Bi13Pt3I7, but does not include \\$\\\\\\\\textbackslashhfill 1\\textbackslashatop \\textbackslashhfill \\textbackslashinfty \\\\\\\\$[BiI2I4/2]− iodidobismuthate strands. Electron microscopy and X-ray diffraction studies of solid intermediates visualize the process of the topochemical crystal-to-crystal transformation. In the electronic band structures of Bi13Pt3I7 and Bi12Pt3I5, the vicinities of the Fermi levels are dominated by the intermetallic fragments. Upon the transformation of Bi13Pt3I7 into Bi12Pt3I5, the intermetallic part is oxidized and the Fermi level is lowered by 0.16\u2005eV. Whereas in Bi13Pt3I7 the intermetallic layers do not interact across the iodidobismuthate spacers (two-dimensional metal), they couple in Bi12Pt3I5 and form a three-dimensional metal.", "copyright" : "© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim", "language" : "en", "file" : "Kaiser et al_2014_Low-Temperature Topochemical Transformation of Bi13Pt3I7 into the New Layered.pdf:files/1155/Kaiser et al_2014_Low-Temperature Topochemical Transformation of Bi13Pt3I7 into the New Layered.pdf:application/pdf;Kaiser et al_2014_Low-Temperature Topochemical Transformation of Bi13Pt3I7 into the New Layered.pdf:files/1156/Kaiser et al_2014_Low-Temperature Topochemical Transformation of Bi13Pt3I7 into the New Layered.pdf:application/pdf;Snapshot:files/1154/abstract.html:text/html", "issn" : "1521-3765", "doi" : "10.1002/chem.201404789", "urldate" : "2015-01-21", "bibtexKey": "kaiser_low-temperature_2014" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/256a2f8495b79f2e17564b1884864e4a2/brasche", "tags" : [ "imported","myown" ], "intraHash" : "56a2f8495b79f2e17564b1884864e4a2", "interHash" : "6e9ca7f7c7b2a896ad9dc32cf42c431a", "label" : "Impact of 1,10-Phenanthroline-Induced Intermediate Valence on the Luminesence of Divalent Europium Halides", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-12-18 15:45:44", "count" : 2, "pub-type": "article", "journal": "Inorg. Chem.", "year": "2023", "url": "https://doi.org/10.1021/acs.inorgchem.2c03647", "author": [ "Laura C. Straub","Matthias Adlung","Claudia Wickleder","Mathias S. Wickleder","Bertold Rasche" ], "authors": [ {"first" : "Laura C.", "last" : "Straub"}, {"first" : "Matthias", "last" : "Adlung"}, {"first" : "Claudia", "last" : "Wickleder"}, {"first" : "Mathias S.", "last" : "Wickleder"}, {"first" : "Bertold", "last" : "Rasche"} ], "volume": "62","number": "1","pages": "497--507","note": "Publisher: American Chemical Society","abstract": "Starting from EuX2 (X = Cl, Br, I), we systematically investigated a variety of divalent europium complexes containing bidentate 1,10-phenanthroline (Phen) ligands. Depending on the Eu/Phen ratio, mono-, di-, and polynuclear complexes are formed, with the latter yielding one-dimensional ∞1[EuBr2(phen)] chains. Seven new divalent europium complexes, [Eu(phen)4(H2O)]Br2·2MeCN, [Eu(phen)4]I2·1.7Tol, [EuBr(phen)3]2Br2·4MeCN, [EuCl2(phen)2]2·2MeCN, [EuBr2(phen)2]2, [EuI2(phen)2]2, and [EuBr2(phen)]x, are presented in this work. All species show remarkable optical properties based on a partial electron transfer from the EuII center to the Phen ligand. The photophysical characterization is further supported by electrochemistry studies in order to describe the intermediate valence of the Eu center.", "file" : "ACS Full Text Snapshot:files/6007/acs.inorgchem.html:text/html;Straub et al_2023_Impact of 1,10-Phenanthroline-Induced Intermediate Valence on the Luminesence.pdf:files/6006/Straub et al_2023_Impact of 1,10-Phenanthroline-Induced Intermediate Valence on the Luminesence.pdf:application/pdf", "issn" : "0020-1669", "doi" : "10.1021/acs.inorgchem.2c03647", "urldate" : "2023-01-12", "bibtexKey": "straub_impact_2023" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2786180a4330f581329b650c3dd2f4cd5/brasche", "tags" : [ "Metastable_phases","Neutron_diffraction","Transition_states","X-ray_diffraction","diffraction","myown" ], "intraHash" : "786180a4330f581329b650c3dd2f4cd5", "interHash" : "9790fe654a30da8186050580ab13ce9f", "label" : "In situ diffraction in electrochemistry \u2013 A practical introduction for experiments beyond batteries", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-03-25 12:38:49", "count" : 2, "pub-type": "article", "journal": "Current Opinion in Electrochemistry", "year": "2023", "url": "https://www.sciencedirect.com/science/article/pii/S2451910323000819", "author": [ "Iuliia Neumann","Bertold Rasche" ], "authors": [ {"first" : "Iuliia", "last" : "Neumann"}, {"first" : "Bertold", "last" : "Rasche"} ], "volume": "39","pages": "101288","abstract": "Electrochemistry and diffraction complement each other particularly well when it comes to the investigation of solids and their surfaces. The electrochemical experiment provides access to thermodynamic and kinetic information, while diffraction provides insights into the atomic structure of crystalline but also amorphous compounds. Gaining these information in one experiment in situ means to trigger phase transitions at ambient temperatures, track rapid changes, and avoid environmental instabilities. Consequently, otherwise non-accessible metastable and transitional phases and structures can be discovered. However, this method is not only limited to bulk phases but also provides information on electrode surfaces. Understanding and building batteries have been one of the main driving forces to establish this technique; nevertheless, this short review intends to provide a \u201Csurvival guide\u201D how to apply the powerful in situ diffraction of electrochemical experiments beyond battery materials. Therefore, we briefly discuss the method together with the available setups and present selected recent examples.", "language" : "en", "file" : "Neumann und Rasche - 2023 - In situ diffraction in electrochemistry \u2013 A practi.pdf:files/6158/Neumann und Rasche - 2023 - In situ diffraction in electrochemistry \u2013 A practi.pdf:application/pdf;ScienceDirect Snapshot:files/6159/S2451910323000819.html:text/html", "issn" : "2451-9103", "doi" : "10.1016/j.coelec.2023.101288", "urldate" : "2023-06-07", "bibtexKey": "neumann_situ_2023" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/2849ab4844ae10232e0a218d30f6aae48/brasche", "tags" : [ "alkaline_metal_intercalates","electrochemical_intercalation","intercalation_rate","myown","transition_metal_chalcogenides","vanadium_selenide" ], "intraHash" : "849ab4844ae10232e0a218d30f6aae48", "interHash" : "e2867473ad6fa0a3875fc159688523fb", "label" : "Alkaline Metal Intercalates of VSe2 by Electrochemical Intercalation", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-03-25 12:38:42", "count" : 1, "pub-type": "article", "journal": "Zeitschrift für anorganische und allgemeine Chemie", "year": "2024", "url": "https://onlinelibrary.wiley.com/doi/abs/10.1002/zaac.202300165", "author": [ "Bastian Kannen","Bertold Rasche" ], "authors": [ {"first" : "Bastian", "last" : "Kannen"}, {"first" : "Bertold", "last" : "Rasche"} ], "volume": "650","number": "2","pages": "e202300165","note": "\\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1002/zaac.202300165","abstract": "We report on the series of the alkali metal intercalates of VSe2 synthesised by electrochemical means in an aqueous environment. For all alkali metals we find water-conintercalated structures (stage I and stage II), of which only the sodium structure had been reported so far. The new structures are analyzed by powder X-ray diffraction and Rietveld refinement. Their (meta-)stability is investigated in terms of the open circuit potential, revealing the sensitivity towards oxygen. Except for the lithium intercalate these structures transform into water-free alkali metal intercalates under vacuum. In addition, scanning electron microscopy reveals the impact of different electrochemical intercalation techniques yielding different intercalation rates. This paves the way for future single crystal investigations.", "copyright" : "© 2023 The Authors. Zeitschrift für anorganische und allgemeine Chemie published by Wiley-VCH GmbH", "language" : "en", "file" : "Kannen und Rasche - Alkaline Metal Intercalates of VSe2 by Electrochem.pdf:files/7040/Kannen und Rasche - Alkaline Metal Intercalates of VSe2 by Electrochem.pdf:application/pdf;Kannen_Rasche_2024_Alkaline Metal Intercalates of VSe2 by Electrochemical Intercalation.pdf:files/7218/Kannen_Rasche_2024_Alkaline Metal Intercalates of VSe2 by Electrochemical Intercalation.pdf:application/pdf;Snapshot:files/7217/zaac.html:text/html", "issn" : "1521-3749", "doi" : "10.1002/zaac.202300165", "urldate" : "2024-03-22", "bibtexKey": "kannen_alkaline_2024" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/24feff6e2b88fd8d415145c2b4a90948a/brasche", "tags" : [ "imported","myown" ], "intraHash" : "4feff6e2b88fd8d415145c2b4a90948a", "interHash" : "f9bba58cf305054f14ad9fe827a01c5c", "label" : "Stabilization of Pr4+ in Silicates─High-Pressure Synthesis of PrSi3O8 and Pr2Si7O18", "user" : "brasche", "description" : "", "date" : "2024-03-25 12:35:57", "changeDate" : "2024-03-25 12:38:29", "count" : 2, "pub-type": "article", "journal": "Inorg. Chem.", "year": "2024", "url": "https://doi.org/10.1021/acs.inorgchem.3c03948", "author": [ "Niko T. Flosbach","Maxim Bykov","Elena Bykova","Bertold Rasche","Mohamed Mezouar","Timofey Fedotenko","Stella Chariton","Vitali B. Prakapenka","Mathias S. Wickleder" ], "authors": [ {"first" : "Niko T.", "last" : "Flosbach"}, {"first" : "Maxim", "last" : "Bykov"}, {"first" : "Elena", "last" : "Bykova"}, {"first" : "Bertold", "last" : "Rasche"}, {"first" : "Mohamed", "last" : "Mezouar"}, {"first" : "Timofey", "last" : "Fedotenko"}, {"first" : "Stella", "last" : "Chariton"}, {"first" : "Vitali B.", "last" : "Prakapenka"}, {"first" : "Mathias S.", "last" : "Wickleder"} ], "note": "Publisher: American Chemical Society","abstract": "The reaction between PrO2 and SiO2 was investigated at various pressure points up to 29 GPa in a diamond anvil cell using laser heating and in situ single-crystal structure analysis. The pressure points at 5 and 10 GPa produced Pr2III(Si2O7), whereas Pr4IIISi3O12 and Pr2IV(O2)O3 were obtained at 15 GPa. Pr4IIISi3O12 can be interpreted as a high-pressure modification of the still unknown orthosilicate Pr4III(SiO4)3. PrIVSi3O8 and Pr2IVSi7O18 that contain praseodymium in its rare + IV oxidation state were identified at 29 GPa. After the pressure was released from the reaction chamber, the Pr(IV) silicates could be recovered, indicating that they are metastable at ambient pressure. Density functional theory calculations of the electronic structure corroborate the oxidation state of praseodymium in both PrIVSi3O8 and Pr2IVSi7O18. Both silicates are the first structurally characterized representatives of Pr4+-containing salts with oxoanions. All three silicates contain condensed networks of [SiO6] octahedra which is unprecedented in the rich chemistry of lanthanoid silicates.", "file" : "Flosbach et al_2024_Stabilization of Pr4+ in Silicates─High-Pressure Synthesis of PrSi3O8 and.pdf:files/7124/Flosbach et al_2024_Stabilization of Pr4+ in Silicates─High-Pressure Synthesis of PrSi3O8 and.pdf:application/pdf", "issn" : "0020-1669", "doi" : "10.1021/acs.inorgchem.3c03948", "urldate" : "2024-03-04", "bibtexKey": "flosbach_stabilization_2024" } ] }