Publications

Wolfgang Kaim, and Biprajit. Sarkar. Mixed valency of a 5d element: The osmium example. Coordination Chemistry Reviews, (257)9-10:1650--1659, 2013. [PUMA: element mixed osmium review valency]

Frank Baumann, Wolfgang Kaim, Gert Denninger, Hans-Juergen Kuemmerer, and Jan. Fiedler. Widely Separated Reduction Processes of abpy-Coupled Areneosmium(II) Reaction Centers (abpy = 2,2'-Azobispyridine): Stabilization of the Radical Intermediate and of the Os0OsII State. Organometallics, (24)8:1966--1973, 2005. [PUMA: EPR arene azobispyridine binuclear bipyrimidine bridged cation complex complex;osmium diosmium mixed osmium potential;radical redox spectra valence]

Frank Baumann, Wolfgang Kaim, Jose A. Olabe, Alejandro R. Parise, and Jeanne. Jordanov. Tetranuclear osmium complexes of tetracyanoquinodimethane TCNQ, 2,2'-(cyclohexa-2,5-diene-1,4-diylidene)bis(propane-1,3-dinitrile) and 1,2,4,5-tetracyanobenzene (TCNB). Synthesis, spectroelectrochemistry and magnetism. Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry, 22:4455--4460, 1997. [PUMA: TCNB TCNQ charge complex complex;osmium intervalence magnetism magnetism;TCNQ osmium prepn spectroelectrochem spectroelectrochem;TCNB tetranuclear tetranuclear;magnetism transfer]

Martina Heilmann, Stephanie Frantz, Wolfgang Kaim, Jan Fiedler, and Carole. Duboc. Mixed-valent and radical states of complexes (bpy)2M(m-abpy)M'(bpy)2n+, M,M' = Ru or Os, abpy = 2,2'-azobispyridine: Electron transfer vs. hole transfer mechanism in azo ligand-bridged complexes. Inorganica Chimica Acta, (359)3:821--829, 2006. [PUMA: EPR azobispyridine bridge complex complex;electron complex;hole complex;mixed cyclic electrochem heterobinuclear;osmium homobinuclear osmium prepn redox ruthenium spectroelectrochem;radical transfer valence voltammetry]

Martina Bubrin, David Schweinfurth, Fabian Ehret, Stanislav Zalis, Hana Kvapilova, Jan Fiedler, Qiang Zeng, Frantisek Hartl, and Wolfgang. Kaim. Structure and Spectroelectrochemical Response of Arene-Ruthenium and Arene-Osmium Complexes with Potentially Hemilabile Noninnocent Ligands. Organometallics, (33)18:4973--4985, 2014. [PUMA: EPR FMO;mol FMO;ruthenium amidophenolate arene crystal electrochem hemilabile osmium prepn redox ruthenium spectroelectrochem structure]

Atanu Kumar Das, Ralph Huebner, Biprajit Sarkar, Jan Fiedler, Stanislav Zalis, Goutam Kumar Lahiri, and Wolfgang. Kaim. UV-vis-NIR and EPR characterization of the redox series MQ32+,+,0,-,2-, M = Ru or Os, and Q = o-quinone derivative. Dalton Transactions, (41)29:8913--8921, 2012. [PUMA: EPR MQ3 NIR deriv electronic osmium quinone ruthenium]

Masa-aki Haga, Masahide Ishizuya, Tomokazu Kanesugi, Tomona Yutaka, Daisuke Sakiyama, Joerg Fees, and Wolfgang. Kaim. Synthesis and formation of dinuclear mixed-valent complexes of ruthenium and osmium bridged by 2-(2-pyrimidyl)benzimidazolate. Indian Journal of Chemistry, Section A: Inorganic, Bio-inorganic, Physical, Theoretical & Analytical Chemistry, (42A)9:2290--2299, 2003. [PUMA: MO bibenzimidazolate;pyrimidylbenzimidazolate bipyridine electrochem energy level osmium oxidn prepn pyrimidylbenzimidazolate redn ruthenium]

Dipanwita Das, Biprajit Sarkar, Tapan Kumar Mondal, Shaikh M. Mobin, Jan Fiedler, Wolfgang Kaim, and Goutam Kumar. Lahiri. Oxidation State Analysis of a Four-Component Redox Series Os(pap)2(Q)n Involving Two Different Non-Innocent Ligands on a Redox-Active Transition Metal. Inorganic Chemistry, (50)15:7090--7098, 2011. [PUMA: ESR NIR complex complex;osmium crystal cyclic iminobenzoquinone osmium phenylazopyridine prepn spectra structure voltammetry]

Sudipta Mondal, Vasileios Filippou, Martina Bubrin, Brigitte Schwederski, Jan Fiedler, and Wolfgang. Kaim. Metalloradical Compounds with 1,2-Dipivaloylhydrazido Ligands: Electron Transfer and Alkylation/Protonation Effects. European Journal of Inorganic Chemistry, (2019)21:2639--2647, 2019. [PUMA: alkylation calcn complex complex;spectroelectrochem crystal dipivaloylhydrazido effect mol osmium prepn protonation ruthenium structure structure;electron transfer]

Axel Knoedler, Matthias Wanner, Wolfgang Kaim, and Jan. Fiedler. Organometallic 5d6 transition metal complexes of 1-methyl-(2-alkylthiomethyl)-1H-benzimidazole ligands: Structures and electrochemical oxidation. Zeitschrift fuer Anorganische und Allgemeine Chemie, (628)5:1132--1139, 2002. [PUMA: alkylthiomethyl benzimidazole complex complex;mol electrochem osmium oxidn;crystal prepn rhenium structure]

Sascha Berger, Frank Baumann, Thomas Scheiring, and Wolfgang. Kaim. Organometallic complex cations (hn-CnR'n)M(RN:CHCH:NR)Cl+ of 1,4-diazabutadienes (M = Os and n = 6 or M = Rh, Ir and n = 5, R = 2,6-dialkylphenyl). Structures and reduction to neutral compounds (hn-CnR'n)M(RNCH:CHNR). Zeitschrift fuer Anorganische und Allgemeine Chemie, (627)4:620--630, 2001. [PUMA: azabutadiene complex complex;diazabutadiene complex;redn complex;redox complex;rhodium crystal diazabutadiene diisopropylphenyl iridium mol osmium potential prepn redox redox;crystal redox;mol structure structure;iridium]