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Article: Electron-transfer chemistry of the luminescent excited state of trans-dioxo-osmium(VI)

TitleElectron-transfer chemistry of the luminescent excited state of trans-dioxo-osmium(VI)
Authors
Issue Date1990
PublisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/dalton
Citation
Journal Of The Chemical Society, Dalton Transactions, 1990 n. 12, p. 3741-3746 How to Cite?
AbstractExcitation of trans-dioxo-osmium(VI) complexes in the solid state and in fluid solutions at room temperature at 350-400 nm results in red emission with maxima at 620-710 nm. Rate constants for electron-transfer quenching of trans-[OsVI(L1)O2]2+* (L1 = 1,4,8,11-tetramethyl-1,4,8,11-tetra-azacyclotetradecane) and trans-[OsVI (L4)O2]2+* {L4 = meso-2,3,7,11,12-pentamethyl-3,7,11,17-tetra-azabicyclo[11.3.1 ]heptadeca-1 (17),13,15-triene} by a series of structurally related aromatic hydrocarbons with varying redox potentials have been determined in acetonitrile. The 3Eg states of trans-[OsVI(L1)O2]2+ and trans-[OsVI(L4)O2]2+ are powerful one-electron oxidants, the excited-state reduction potentials of which in acetonitrile, E°(OsVI*-OsV), have been found to be 2.39(10) and 2.00(10) V vs. normal hydrogen electrode respectively, which agree well with estimations using spectroscopic and electrochemical data.
Persistent Identifierhttp://hdl.handle.net/10722/168213
ISSN
2002 Impact Factor: 3.023
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYam, VWWen_US
dc.contributor.authorChe, CMen_US
dc.date.accessioned2012-10-08T03:16:20Z-
dc.date.available2012-10-08T03:16:20Z-
dc.date.issued1990en_US
dc.identifier.citationJournal Of The Chemical Society, Dalton Transactions, 1990 n. 12, p. 3741-3746en_US
dc.identifier.issn1472-7773en_US
dc.identifier.urihttp://hdl.handle.net/10722/168213-
dc.description.abstractExcitation of trans-dioxo-osmium(VI) complexes in the solid state and in fluid solutions at room temperature at 350-400 nm results in red emission with maxima at 620-710 nm. Rate constants for electron-transfer quenching of trans-[OsVI(L1)O2]2+* (L1 = 1,4,8,11-tetramethyl-1,4,8,11-tetra-azacyclotetradecane) and trans-[OsVI (L4)O2]2+* {L4 = meso-2,3,7,11,12-pentamethyl-3,7,11,17-tetra-azabicyclo[11.3.1 ]heptadeca-1 (17),13,15-triene} by a series of structurally related aromatic hydrocarbons with varying redox potentials have been determined in acetonitrile. The 3Eg states of trans-[OsVI(L1)O2]2+ and trans-[OsVI(L4)O2]2+ are powerful one-electron oxidants, the excited-state reduction potentials of which in acetonitrile, E°(OsVI*-OsV), have been found to be 2.39(10) and 2.00(10) V vs. normal hydrogen electrode respectively, which agree well with estimations using spectroscopic and electrochemical data.en_US
dc.languageengen_US
dc.publisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/daltonen_US
dc.relation.ispartofJournal of the Chemical Society, Dalton Transactionsen_US
dc.titleElectron-transfer chemistry of the luminescent excited state of trans-dioxo-osmium(VI)en_US
dc.typeArticleen_US
dc.identifier.emailYam, VWW:wwyam@hku.hken_US
dc.identifier.emailChe, CM:cmche@hku.hken_US
dc.identifier.authorityYam, VWW=rp00822en_US
dc.identifier.authorityChe, CM=rp00670en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1039/DT9900003741en_US
dc.identifier.scopuseid_2-s2.0-37049077338en_US
dc.identifier.issue12en_US
dc.identifier.spage3741en_US
dc.identifier.epage3746en_US
dc.identifier.isiWOS:A1990EP09800028-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridYam, VWW=18539304700en_US
dc.identifier.scopusauthoridChe, CM=7102442791en_US

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