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Article: Covalently linked donor-acceptor cyclometalated platinum(II) complexes. Structure and luminescent properties

TitleCovalently linked donor-acceptor cyclometalated platinum(II) complexes. Structure and luminescent properties
Authors
Issue Date1993
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, 1993, v. 115 n. 24, p. 11245-11253 How to Cite?
AbstractReaction of [Pt(CH3CN)4]2+ with 2,9-diphenyl-1,10-phenanthroline (dpp) in acetonitrile gave the cyclometalated complex [Pt(C N N-dpp)(CH3CN)](ClO4) {here abbreviated as [7](ClO4)}, the structure of which has been established by 1H-1H COSY and X-ray crystallography: triclinic, P1̄, a = 13.322(3) Å, b = 13.877(3) Å, c = 14.164(6) Å, α = 86.74(3)°, β= 105.87(3)°, γ = 108.93(2)°, V = 2381.0(12) Å3, Z = 2. The resemblance between solution excimeric emission and solid-state emission of 7 suggests that the structure of excimer [7]2* in CH2Cl2 is similar to the dimeric unit in the crystalline state. The coordinated CH3CN in 7 is substitution labile and can be easily replaced by nitrogen bases upon heating in acetone to give covalently-linked donor-acceptor organometallic complexes. Crystal structures of coordinated 4-(4-nitrobenzyl)pyridine and 4-(2-(9-anthryl)vinyl)pyridine substituted complexes (10 and 11, respectively) have been determined: [10](ClO4), triclinic, P1̄, a = 10.143(2) Å, b = 13.025(4) Å, c = 13.581(2) Å, α = 68.64(2)°, β = 77.15(2)°,γ = 68.00(2)°, V = 1541.6(7) Å3, Z = 2; [11](ClO4), monoclinic, P21/c, a = 13.065(4) Å, b = 18.647(5) Å, c = 16.276(4) Å, β = 116.59(2)°, V = 3546(3) Å3, Z = 4. In both structures, one of the phenyl rings of (C N N-dpp) is nearly parallel with the nitrogen base ligand, which is perpendicular to the mean plane defined by the atoms N(1), N(2), C(13), and Pt. The photoluminescent properties of 7 and complexes with covalently linked organic quenchers are described.
Persistent Identifierhttp://hdl.handle.net/10722/167321
ISSN
2015 Impact Factor: 13.038
2015 SCImago Journal Rankings: 7.123
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChan, CWen_US
dc.contributor.authorLai, TFen_US
dc.contributor.authorChe, CMen_US
dc.contributor.authorPeng, SMen_US
dc.date.accessioned2012-10-08T03:05:39Z-
dc.date.available2012-10-08T03:05:39Z-
dc.date.issued1993en_US
dc.identifier.citationJournal Of The American Chemical Society, 1993, v. 115 n. 24, p. 11245-11253en_US
dc.identifier.issn0002-7863en_US
dc.identifier.urihttp://hdl.handle.net/10722/167321-
dc.description.abstractReaction of [Pt(CH3CN)4]2+ with 2,9-diphenyl-1,10-phenanthroline (dpp) in acetonitrile gave the cyclometalated complex [Pt(C N N-dpp)(CH3CN)](ClO4) {here abbreviated as [7](ClO4)}, the structure of which has been established by 1H-1H COSY and X-ray crystallography: triclinic, P1̄, a = 13.322(3) Å, b = 13.877(3) Å, c = 14.164(6) Å, α = 86.74(3)°, β= 105.87(3)°, γ = 108.93(2)°, V = 2381.0(12) Å3, Z = 2. The resemblance between solution excimeric emission and solid-state emission of 7 suggests that the structure of excimer [7]2* in CH2Cl2 is similar to the dimeric unit in the crystalline state. The coordinated CH3CN in 7 is substitution labile and can be easily replaced by nitrogen bases upon heating in acetone to give covalently-linked donor-acceptor organometallic complexes. Crystal structures of coordinated 4-(4-nitrobenzyl)pyridine and 4-(2-(9-anthryl)vinyl)pyridine substituted complexes (10 and 11, respectively) have been determined: [10](ClO4), triclinic, P1̄, a = 10.143(2) Å, b = 13.025(4) Å, c = 13.581(2) Å, α = 68.64(2)°, β = 77.15(2)°,γ = 68.00(2)°, V = 1541.6(7) Å3, Z = 2; [11](ClO4), monoclinic, P21/c, a = 13.065(4) Å, b = 18.647(5) Å, c = 16.276(4) Å, β = 116.59(2)°, V = 3546(3) Å3, Z = 4. In both structures, one of the phenyl rings of (C N N-dpp) is nearly parallel with the nitrogen base ligand, which is perpendicular to the mean plane defined by the atoms N(1), N(2), C(13), and Pt. The photoluminescent properties of 7 and complexes with covalently linked organic quenchers are described.en_US
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/jacsat/index.htmlen_US
dc.relation.ispartofJournal of the American Chemical Societyen_US
dc.titleCovalently linked donor-acceptor cyclometalated platinum(II) complexes. Structure and luminescent propertiesen_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.doi10.1021/ja00077a025-
dc.identifier.scopuseid_2-s2.0-0001123123en_US
dc.identifier.volume115en_US
dc.identifier.issue24en_US
dc.identifier.spage11245en_US
dc.identifier.epage11253en_US
dc.identifier.isiWOS:A1993ML59000025-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChan, CW=7404814723en_US
dc.identifier.scopusauthoridLai, TF=7202203523en_US
dc.identifier.scopusauthoridChe, CM=7102442791en_US
dc.identifier.scopusauthoridPeng, SM=35464852200en_US

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