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Article: Photoluminescent cyclometallated diplatinum(II,II) complexes: Photophysical properties and crystal structures of [PtL(PPh3)]ClO4 and[Pt2L2(μ-dppm)][ClO4]2(HL = 6-phenyl-2,2′-bipyridine, dppm = Ph2PCH2PPh2)

TitlePhotoluminescent cyclometallated diplatinum(II,II) complexes: Photophysical properties and crystal structures of [PtL(PPh3)]ClO4 and[Pt2L2(μ-dppm)][ClO4]2(HL = 6-phenyl-2,2′-bipyridine, dppm = Ph2PCH2PPh2)
Authors
Issue Date1996
Citation
Journal Of The Chemical Society - Dalton Transactions, 1996 n. 8, p. 1645-1651 How to Cite?
AbstractThe complexes [PtL(Cl)] 1, [PtL(PPh3)]ClO4 2 and [Pt2L2(μ-dppm)][ClO4]2 3 (HL = 6-phenyl-2,2′-bipyridine, dppm = Ph2PCH2PPh2) have been prepared and their spectroscopic and emission properties studied. Complex 3 shows a broad and intense absorption at 420-510 nm which is tentatively assigned to a metal-metal to ligand charge-transfer transition 1m.m.l.c.t. 1[dσ*→σ(π*)], where dσ* arises from the antisymmetric combination of the two platinum dz2 orbitals and σ(π*) from the symmetric combination of π* orbitals of the two L ligands. All the complexes show luminescence in both the solid state and in solution. Both 1 and 2 display 3m.l.c.t. emission in solution at room temperature. The solid-state emission of 1 and both the solid-state and fluid-state emission of 3 are assigned to the 3m.m.l.c.t. 3[(dσ*){σ(π*)}] state. The crystal structure of 2 shows an intermolecular π-π interaction between two L ligands as evidenced by the intermolecular ligand plane separation of 3.35 Å. The solid-state emission of 2 is suggested to arise from a π-π excimeric interaction of the L ligands. The crystal structure of 3 shows discrete [Pt2L2(μ-dppm)]2+ units with an intramolecular Pt-Pt separation of 3.2703 Å.
Persistent Identifierhttp://hdl.handle.net/10722/168072
ISSN
1999 Impact Factor: 2.31
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCheung, TCen_US
dc.contributor.authorCheung, KKen_US
dc.contributor.authorPeng, SMen_US
dc.contributor.authorChe, CMen_US
dc.date.accessioned2012-10-08T03:14:48Z-
dc.date.available2012-10-08T03:14:48Z-
dc.date.issued1996en_US
dc.identifier.citationJournal Of The Chemical Society - Dalton Transactions, 1996 n. 8, p. 1645-1651en_US
dc.identifier.issn0300-9246en_US
dc.identifier.urihttp://hdl.handle.net/10722/168072-
dc.description.abstractThe complexes [PtL(Cl)] 1, [PtL(PPh3)]ClO4 2 and [Pt2L2(μ-dppm)][ClO4]2 3 (HL = 6-phenyl-2,2′-bipyridine, dppm = Ph2PCH2PPh2) have been prepared and their spectroscopic and emission properties studied. Complex 3 shows a broad and intense absorption at 420-510 nm which is tentatively assigned to a metal-metal to ligand charge-transfer transition 1m.m.l.c.t. 1[dσ*→σ(π*)], where dσ* arises from the antisymmetric combination of the two platinum dz2 orbitals and σ(π*) from the symmetric combination of π* orbitals of the two L ligands. All the complexes show luminescence in both the solid state and in solution. Both 1 and 2 display 3m.l.c.t. emission in solution at room temperature. The solid-state emission of 1 and both the solid-state and fluid-state emission of 3 are assigned to the 3m.m.l.c.t. 3[(dσ*){σ(π*)}] state. The crystal structure of 2 shows an intermolecular π-π interaction between two L ligands as evidenced by the intermolecular ligand plane separation of 3.35 Å. The solid-state emission of 2 is suggested to arise from a π-π excimeric interaction of the L ligands. The crystal structure of 3 shows discrete [Pt2L2(μ-dppm)]2+ units with an intramolecular Pt-Pt separation of 3.2703 Å.en_US
dc.languageengen_US
dc.relation.ispartofJournal of the Chemical Society - Dalton Transactionsen_US
dc.titlePhotoluminescent cyclometallated diplatinum(II,II) complexes: Photophysical properties and crystal structures of [PtL(PPh3)]ClO4 and[Pt2L2(μ-dppm)][ClO4]2(HL = 6-phenyl-2,2′-bipyridine, dppm = Ph2PCH2PPh2)en_US
dc.typeArticleen_US
dc.identifier.emailChe, CM:cmche@hku.hken_US
dc.identifier.authorityChe, CM=rp00670en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1039/DT9960001645-
dc.identifier.scopuseid_2-s2.0-33751379023en_US
dc.identifier.hkuros22009-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33751379023&selection=ref&src=s&origin=recordpageen_US
dc.identifier.issue8en_US
dc.identifier.spage1645en_US
dc.identifier.epage1651en_US
dc.identifier.isiWOS:A1996UG76200025-
dc.identifier.scopusauthoridCheung, TC=7103334175en_US
dc.identifier.scopusauthoridCheung, KK=7402406613en_US
dc.identifier.scopusauthoridPeng, SM=35464852200en_US
dc.identifier.scopusauthoridChe, CM=7102442791en_US

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