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Article: Synthesis, spectroscopy and excited-state redox properties of novel luminescent trinuclear three-co-ordinate gold(I) phosphine complexes

TitleSynthesis, spectroscopy and excited-state redox properties of novel luminescent trinuclear three-co-ordinate gold(I) phosphine complexes
Authors
Issue Date1993
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, 1993 n. 14, p. 2097-2100 How to Cite?
AbstractReaction of [Au3(dmmp)2][ClO4]3 with an excess of dmmp [bis(dimethylphosphinomethyl)methylphosphine] in methanol yielded [Au3(dmmp)3][ClO4]3 in almost quantitative yield. Excitation of a degassed acetonitrile solution of [Au3(dmmp)3]3+ at λ > 350 nm resulted in intense phosphorescence (λem = 625 nm, τ0 = 2.2 ± 0.2 μs). A comparison between the electronic absorption and emission spectra of [Au3(dmmp)3]3+ and [Au2(dmpm)3]2+ [dmpm = bis(dimethylphosphino)methane] has been made. The assignment of the lowest electronic excited state in the (AuP3)n system has been suggested to be 3[(dδ*)(pσ)]. The excited-state redox potentials of [Au3(dmmp)3]3+* and [Au2(dmpm)3]2+* have been determined through oxidative quenching experiments with a series of pyridinium acceptors of variable reduction potential.
Persistent Identifierhttp://hdl.handle.net/10722/168228
ISSN
2002 Impact Factor: 3.023
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYam, VWWen_US
dc.contributor.authorLee, Wen_US
dc.date.accessioned2012-10-08T03:16:28Z-
dc.date.available2012-10-08T03:16:28Z-
dc.date.issued1993en_US
dc.identifier.citationJournal Of The Chemical Society, Dalton Transactions, 1993 n. 14, p. 2097-2100en_US
dc.identifier.issn1472-7773en_US
dc.identifier.urihttp://hdl.handle.net/10722/168228-
dc.description.abstractReaction of [Au3(dmmp)2][ClO4]3 with an excess of dmmp [bis(dimethylphosphinomethyl)methylphosphine] in methanol yielded [Au3(dmmp)3][ClO4]3 in almost quantitative yield. Excitation of a degassed acetonitrile solution of [Au3(dmmp)3]3+ at λ > 350 nm resulted in intense phosphorescence (λem = 625 nm, τ0 = 2.2 ± 0.2 μs). A comparison between the electronic absorption and emission spectra of [Au3(dmmp)3]3+ and [Au2(dmpm)3]2+ [dmpm = bis(dimethylphosphino)methane] has been made. The assignment of the lowest electronic excited state in the (AuP3)n system has been suggested to be 3[(dδ*)(pσ)]. The excited-state redox potentials of [Au3(dmmp)3]3+* and [Au2(dmpm)3]2+* have been determined through oxidative quenching experiments with a series of pyridinium acceptors of variable reduction potential.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.titleSynthesis, spectroscopy and excited-state redox properties of novel luminescent trinuclear three-co-ordinate gold(I) phosphine complexesen_US
dc.typeArticleen_US
dc.identifier.emailYam, VWW:wwyam@hku.hken_US
dc.identifier.authorityYam, VWW=rp00822en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1039/DT9930002097en_US
dc.identifier.scopuseid_2-s2.0-37049082505en_US
dc.identifier.issue14en_US
dc.identifier.spage2097en_US
dc.identifier.epage2100en_US
dc.identifier.isiWOS:A1993LP69900003-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridYam, VWW=18539304700en_US
dc.identifier.scopusauthoridLee, W=14521278700en_US

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