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Article: Luminescent organometallic gold(I) complexes. Structure and photophysical properties of alkyl-, aryl- and μ-ethynylene gold(I) complexes
Title | Luminescent organometallic gold(I) complexes. Structure and photophysical properties of alkyl-, aryl- and μ-ethynylene gold(I) complexes |
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Authors | |
Issue Date | 1994 |
Publisher | Royal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/dalton |
Citation | Journal Of The Chemical Society, Dalton Transactions, 1994 n. 13, p. 1867-1871 How to Cite? |
Abstract | The complexes [Au(PPh3)Ph] 1, [Au2(dppm)Me2] 2, [Au2(dppm)Ph2] 3 and [{Au[P(C6H4OMe-p)3]} 2(μ-C≡C)] 4 were prepared by literature methods. The structures of 1-3 have been established by X-ray crystallography: 1, triclinic, space group P1, a = 8.524(2), b = 15.227(2), c = 15.525 Å, α = 91.07(1), β = 92.06(1), γ = 94.28(1)°; 2, monoclinic, space group P21/n, a = 12.201(3), b = 13.014(5), c = 16.329(4) Å, β = 94.11(2)°; 3, monoclinic, space group C2/c, a = 16.688(3), b = 10.468(1), c = 17.899(2) Å, β = 97.70(1)°. The intramolecular Au ⋯ Au distances in 2 and 3 are 3.251(1) and 3.154(1) Å respectively. Extended-Hückel molecular orbital calculations showed that the highest occupied molecular orbital of 3 is a combination of dσ* and dδ*, whereas its lowest unoccupied molecular orbital is the π* of the co-ordinated phenyl group. The UV/VIS absorption spectra of 2 and 3 show intense absorptions at around 290-300 nm, which are assigned as Au(dσ*, dδ*) → π* (Ph, dppm) in nature. Both 2 and 3 show luminescence in fluid solution at room temperature. The emission properties of 3 have been examined in detail. Complex 4 shows a well resolved vibronic structured emission at 400-600 nm in dichloromethane at room temperature, arising from the 3[ππ*] excited state of C2 2-. © Copyright 1994 by the Royal Society of Chemistry. |
Persistent Identifier | http://hdl.handle.net/10722/168167 |
ISSN | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Hong, X | en_US |
dc.contributor.author | Cheung, KK | en_US |
dc.contributor.author | Guo, CX | en_US |
dc.contributor.author | Che, CM | en_US |
dc.date.accessioned | 2012-10-08T03:15:53Z | - |
dc.date.available | 2012-10-08T03:15:53Z | - |
dc.date.issued | 1994 | en_US |
dc.identifier.citation | Journal Of The Chemical Society, Dalton Transactions, 1994 n. 13, p. 1867-1871 | en_US |
dc.identifier.issn | 1472-7773 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/168167 | - |
dc.description.abstract | The complexes [Au(PPh3)Ph] 1, [Au2(dppm)Me2] 2, [Au2(dppm)Ph2] 3 and [{Au[P(C6H4OMe-p)3]} 2(μ-C≡C)] 4 were prepared by literature methods. The structures of 1-3 have been established by X-ray crystallography: 1, triclinic, space group P1, a = 8.524(2), b = 15.227(2), c = 15.525 Å, α = 91.07(1), β = 92.06(1), γ = 94.28(1)°; 2, monoclinic, space group P21/n, a = 12.201(3), b = 13.014(5), c = 16.329(4) Å, β = 94.11(2)°; 3, monoclinic, space group C2/c, a = 16.688(3), b = 10.468(1), c = 17.899(2) Å, β = 97.70(1)°. The intramolecular Au ⋯ Au distances in 2 and 3 are 3.251(1) and 3.154(1) Å respectively. Extended-Hückel molecular orbital calculations showed that the highest occupied molecular orbital of 3 is a combination of dσ* and dδ*, whereas its lowest unoccupied molecular orbital is the π* of the co-ordinated phenyl group. The UV/VIS absorption spectra of 2 and 3 show intense absorptions at around 290-300 nm, which are assigned as Au(dσ*, dδ*) → π* (Ph, dppm) in nature. Both 2 and 3 show luminescence in fluid solution at room temperature. The emission properties of 3 have been examined in detail. Complex 4 shows a well resolved vibronic structured emission at 400-600 nm in dichloromethane at room temperature, arising from the 3[ππ*] excited state of C2 2-. © Copyright 1994 by the Royal Society of Chemistry. | en_US |
dc.language | eng | en_US |
dc.publisher | Royal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/dalton | en_US |
dc.relation.ispartof | Journal of the Chemical Society, Dalton Transactions | en_US |
dc.title | Luminescent organometallic gold(I) complexes. Structure and photophysical properties of alkyl-, aryl- and μ-ethynylene gold(I) complexes | en_US |
dc.type | Article | en_US |
dc.identifier.email | Che, CM:cmche@hku.hk | en_US |
dc.identifier.authority | Che, CM=rp00670 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1039/DT9940001867 | en_US |
dc.identifier.scopus | eid_2-s2.0-37049068310 | en_US |
dc.identifier.issue | 13 | en_US |
dc.identifier.spage | 1867 | en_US |
dc.identifier.epage | 1871 | en_US |
dc.identifier.isi | WOS:A1994NX85500009 | - |
dc.publisher.place | United Kingdom | en_US |
dc.identifier.scopusauthorid | Hong, X=23067082000 | en_US |
dc.identifier.scopusauthorid | Cheung, KK=7402406613 | en_US |
dc.identifier.scopusauthorid | Guo, CX=36777965500 | en_US |
dc.identifier.scopusauthorid | Che, CM=7102442791 | en_US |
dc.identifier.issnl | 1364-5447 | - |