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Article: Structural and spectroscopic studies on Pt⋯Pt and π-π interactions in luminescent multinuclear cyclometalated platinum(II) homologues tethered by oligophosphine auxiliaries

TitleStructural and spectroscopic studies on Pt⋯Pt and π-π interactions in luminescent multinuclear cyclometalated platinum(II) homologues tethered by oligophosphine auxiliaries
Authors
Issue Date2004
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/jacsat/index.html
Citation
Journal Of The American Chemical Society, 2004, v. 126 n. 24, p. 7639-7651 How to Cite?
AbstractThe synthesis and structural, spectroscopic, and electrochemical properties of a series of trinuclear tridentate cyclometalated platinum(II) complexes tethered by bis(diphenylphosphinomethyl)phenylphosphine (dpmp) have been studied and compared with their mono- and binuclear homologues and a propeller-like congener. The X-ray crystal structures of several derivatives show the presence of a variety of intramolecular Pt⋯Pt, π-π, and C-H⋯O(crown ether) and intermolecular π-π interactions. The trinuclear complexes display strong absorption in the 400-600 nm region and show intense red to near-infrared phosphorescence with microsecond lifetimes in fluid and glassy solutions and in the solid state. These emissions are generally assigned as 3MMLCT [dσ*→π*(C/N/N)] in nature. The close similarities between the emission energies in acetonitrile solution and in the solid state at 298 K indicate that comparable Pt⋯Pt and π-π configurations are maintained in both media, and hence a relationship between the photophysical behavior of these lumophores and their solid-state structural features is proposed. The tendencies of the absorption and emission energies to red-shift from mono- to linearly tethered bi- and trinuclear Pt(II) species are evident. A light-emitting electrochemical cell using a trinuclear Pt(II) derivative as emitter has been demonstrated.
Persistent Identifierhttp://hdl.handle.net/10722/167983
ISSN
2015 Impact Factor: 13.038
2015 SCImago Journal Rankings: 7.123
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLu, Wen_HK
dc.contributor.authorChan, MCWen_HK
dc.contributor.authorZhu, Nen_HK
dc.contributor.authorChe, CMen_HK
dc.contributor.authorLi, Cen_HK
dc.contributor.authorHui, Zen_HK
dc.date.accessioned2012-10-08T03:13:44Z-
dc.date.available2012-10-08T03:13:44Z-
dc.date.issued2004en_HK
dc.identifier.citationJournal Of The American Chemical Society, 2004, v. 126 n. 24, p. 7639-7651en_HK
dc.identifier.issn0002-7863en_HK
dc.identifier.urihttp://hdl.handle.net/10722/167983-
dc.description.abstractThe synthesis and structural, spectroscopic, and electrochemical properties of a series of trinuclear tridentate cyclometalated platinum(II) complexes tethered by bis(diphenylphosphinomethyl)phenylphosphine (dpmp) have been studied and compared with their mono- and binuclear homologues and a propeller-like congener. The X-ray crystal structures of several derivatives show the presence of a variety of intramolecular Pt⋯Pt, π-π, and C-H⋯O(crown ether) and intermolecular π-π interactions. The trinuclear complexes display strong absorption in the 400-600 nm region and show intense red to near-infrared phosphorescence with microsecond lifetimes in fluid and glassy solutions and in the solid state. These emissions are generally assigned as 3MMLCT [dσ*→π*(C/N/N)] in nature. The close similarities between the emission energies in acetonitrile solution and in the solid state at 298 K indicate that comparable Pt⋯Pt and π-π configurations are maintained in both media, and hence a relationship between the photophysical behavior of these lumophores and their solid-state structural features is proposed. The tendencies of the absorption and emission energies to red-shift from mono- to linearly tethered bi- and trinuclear Pt(II) species are evident. A light-emitting electrochemical cell using a trinuclear Pt(II) derivative as emitter has been demonstrated.en_HK
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/jacsat/index.htmlen_HK
dc.relation.ispartofJournal of the American Chemical Societyen_HK
dc.titleStructural and spectroscopic studies on Pt⋯Pt and π-π interactions in luminescent multinuclear cyclometalated platinum(II) homologues tethered by oligophosphine auxiliariesen_HK
dc.typeArticleen_HK
dc.identifier.emailZhu, N: nzhu@hkucc.hku.hken_HK
dc.identifier.emailChe, CM: cmche@hku.hken_HK
dc.identifier.authorityZhu, N=rp00845en_HK
dc.identifier.authorityChe, CM=rp00670en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1021/ja039727oen_HK
dc.identifier.pmid15198612-
dc.identifier.scopuseid_2-s2.0-2942654601en_HK
dc.identifier.hkuros94150-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-2942654601&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume126en_HK
dc.identifier.issue24en_HK
dc.identifier.spage7639en_HK
dc.identifier.epage7651en_HK
dc.identifier.isiWOS:000222120900045-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLu, W=55277832700en_HK
dc.identifier.scopusauthoridChan, MCW=7402598116en_HK
dc.identifier.scopusauthoridZhu, N=7201449530en_HK
dc.identifier.scopusauthoridChe, CM=7102442791en_HK
dc.identifier.scopusauthoridLi, C=8570971400en_HK
dc.identifier.scopusauthoridHui, Z=7005565139en_HK

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