Metal(IV) Complexes M(LN,O,S)2n (M = Ru, Os) of a Redox-Active o-Amidophenolate Ligand (LN,O,S)2- with Coordinating Thioether Appendix. European Journal of Inorganic Chemistry, (2012)22:3569-3576, S3569/1-S3569/5, 2012. [PUMA: calcn complex complex;DFT complex;ESR complex;mononuclear crystal cyclic mononuclear osmium prepn ruthenium spectra structure;UV thiophenylamidophenolate tridentate voltammetry]
Spectroelectrochemical Characterization of the Two-Step Redox System (μ-pz)Os(CN)52n- (n = 4, 5, 6; pz = Pyrazine). Similarities and Differences in Relation to the Creutz-Taube System. Inorganic Chemistry, (37)2:311--316, 1998. [PUMA: charge cyano dinuclear dinuclear;electrochem dinuclear;osmium osmium oxidn prepn pyrazine spectra spectroelectrochem transfer]
Characterization of the inorganic/organometallic osmium(IV) compound Cp*2OsIVCl2OsIVCl6 as formed by the reaction of OsCl3 with pentamethylcyclopentadiene in air. Zeitschrift fuer Naturforschung, B: A Journal of Chemical Sciences, (55)3/4:235--237, 2000. [PUMA: chloroosmate chloroosmate;pentamethylcyclopentadiene complexation crystal osmium pentamethylcyclopentadienyl prepn;mol structure trichloride]
The Redox Series M(bpy)2(Q)n+, M = Ru or Os, Q = 3,5-Di-tert-butyl-N-phenyl-1,2-benzoquinonemonoimine. Isolation and a Complete X and W Band EPR Study of the Semiquinone States (n = 1). Inorganic Chemistry, (44)8:2843--2847, 2005. [PUMA: EPR benzoquinonemonoimine osmium potential potential;ruthenium prepn redox spectroelectrochem]
Stepwise and chemically reversible reduction of (μ-bmtz)MCl(η6-cym)2PF62 (M = Ru, Os; bmtz = 3,6-bis(2'-pyrimidyl)-1,2,4,5-tetrazine) with up to six electrons. Zeitschrift fuer Anorganische und Allgemeine Chemie, (627)7:1441--1453, 2001. [PUMA: ESR cymene;ruthenium dinuclear electrochem osmium pyrimidyltetrazine redn redn;spectroelectrochem ruthenium]
Valence Delocalization despite Weak Metal-Metal Coupling in a Bis(organoosmium(III,II)) Complex with a Pyrazine Bridge. Organometallics, (17)23:4923--4925, 1998. [PUMA: bridged complex complex;mixed complex;osmium delocalization;spectroelectrochem dinuclear electrochem osmium oxidn prepn pyrazine valence]
Effect of metal exchange (Os vs. Ru) and co-ligand variation (Cl- vs. acac-) on the oxidation state distribution in complexes of an o-phenylenediamido(2-)/o-quinonediimine redox system. Dalton Transactions, 37:7778--7785, 2009. [PUMA: complex complex;ESR complex;electronic complex;electrooxidn complex;electroredn complex;geometry complex;osmium complex;valence crystal optimized osmium prepn prepn;UV quinonediimine ruthenium structure structure;ruthenium visible]
Varying Electronic Structures of Diosmium Complexes from Noninnocently Behaving Anthraquinone-Derived Bis-chelate Ligands. Inorganic Chemistry, (54)16:7936--7944, 2015. [PUMA: UV bipyridine complex complex;IR complex;electron complex;osmium crystal density diaminoanthraquinone dihydroxyanthraquinone osmium phenylazopyridine potential prepn redox spectroelectrochem spin structure]
Interaction of two equivalent electron transfer/atom transfer centers via 2,2'-bipyrimidine as bridging ligand. Inorganic Chemistry Communications, (1)8:305--308, 1998. [PUMA: atom bipyrimidine communication complex complex;electrochem complex;electron complex;electronic complex;mol complex;redox crystal cymene dinuclear electrochem mononuclear osmium structure transfer]
Singlet Diradical Complexes of Ruthenium and Osmium: Geometrical and Electronic Structures and their Unexpected Changes on Oxidation. Inorganic Chemistry, (47)5:1625--1633, 2008. [PUMA: 8 ESR UV crystal diradical electrochem metal osmium oxidn phenylaminophenylazopyridine phenylaminophenylazopyridine;group prepn ruthenium singlet spectroelectrochem;phenylaminophenylazopyridine structure]
Reduction of the NO+ ligand in the pentacyanonitrosylosmate(II) ion. Inorganica Chimica Acta, (285)1:129--133, 1999. [PUMA: ESR complex cyano electrochem nitrosyl osmium prepn redn spectroelectrochem]
Different manifestations of enhanced p-acceptor ligation at every redox level of Os(9-OP)L2n, n = 2+, +, 0, - (9-OP- = 9-oxidophenalenone and L = bpy or pap). Dalton Transactions, (45)45:18241--18251, 2016. [PUMA: bipyridine complex crystal electrochem mol optimization osmium oxidophenalenone phenylazopyridine phenylazopyridine;ESR phenylazopyridine;osmium prepn structure]
Spectroelectrochemical Characterization of the Two-Step Redox System (μ-pz)Os(CN)52n- (n = 4, 5, 6; pz = Pyrazine). Similarities and Differences in Relation to the Creutz-Taube System. Erratum to document cited in CA128:56656. Inorganic Chemistry, (37)20:5402, 1998. [PUMA: charge cyano dinuclear electrochem erratum erratum;cyano erratum;electrochem erratum;erratum erratum;oxidn erratum;transfer osmium oxidn prepn pyrazine pyrazine;osmium spectra spectroelectrochem transfer]
Iron(II) versus osmium(II) oxidation in 1,1'-bis(diorganophosphino)ferrocene-osmium(II) complexes. Journal of Organometallic Chemistry, (637-639):167--171, 2001. [PUMA: EPR;mol bisphosphino bisphosphinoferrocene chloride chloride;osmium crystal cymene electrochem ferrocene ligand osmium structure substitution]
What a Difference Ancillary Thienyl Makes: Unexpected Additional Stabilization of the Diruthenium(III,II) but Not the Diosmium(III,II) Mixed-Valent State in Tetrazine Ligand-Bridged Complexes. Inorganic Chemistry, (42)20:6172--6174, 2003. [PUMA: complex osmium pyridyl reaction redox spectroscopy spectroscopy;ruthenium synthesis tetrazine thienyl]
The Metal-NO Interaction in the Redox Systems Cl5Os(NO)n-, n = 1-3, and cis-(bpy)2ClOs(NO)2+/+: Calculations, Structural, Electrochemical, and Spectroscopic Results. Inorganic Chemistry, (45)12:4602--4609, 2006. [PUMA: acetonitrile bond chloro complex crystal electrochem electroredn interaction iridium lengthening;metal nitrosyl osmium potential ruthenium salt solvate spectroscopy;osmate structure structure;redox tetraphenylphosphonium]
Unconventional mixed-valent complexes of ruthenium and osmium. Angewandte Chemie, International Edition, (46)11:1778--1796, 2007. [PUMA: bridged complex electron exchange intramol ligand mediated mixed osmium review review;review review;valence ruthenium transfer transfer;ruthenium valent]
Organoosmium complexes of imidazole-containing chelate acceptor ligands. Inorganica Chimica Acta, (363)12:3070--3077, 2010. [PUMA: DFT MO;imidazolylketone MO;optimized arene chlorocymeneosmium crystal cymene fluorophosphate;mol imidazolylglyoxal imidazolylketone mol osmium prepn reaction spectroelectrochem structure voltammetry]
The intricate paramagnetic state of Os(Q)2(bpy)+, Q = 4,6-di-tert-butyl-o-iminobenzoquinone. Dalton Transactions, (41)38:11675--11683, 2012. [PUMA: DFT bipyridine complex crystal electrochem electron iminobenzoquinone one osmium oxidn prepn;paramagnetic redn redox;spectroelectrochem state structure]
Stability rules for d5/d6 mixed-valent dimers. Effects from the donor/acceptor capability of the metal (ruthenium vs osmium) and from the occupancy of the mediating ligand orbital (LUMO vs HOMO). Inorganic Chemistry, (29)23:4696--4699, 1990. [PUMA: HOMO acceptor d5 d6 dimer donor ligand orbital;LUMO osmium rule ruthenium stability;stability]
Mixed valency of a 5d element: The osmium example. Coordination Chemistry Reviews, (257)9-10:1650--1659, 2013. [PUMA: element mixed osmium review valency]
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]
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]
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]
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]
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]
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]
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]
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]
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]
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]