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Article: Syntheses, photophysics, and X-ray structural characterization of dinuclear platinum(II) acetylide complexes, [Pt2(μ-dppm)2(μ-PhC≡C)(PhC≡C) 2]ClO4 and [Pt2(μ-dppm)2(μ-1BuC≡)( tBuC≡C)Cl]ClO4
Title | Syntheses, photophysics, and X-ray structural characterization of dinuclear platinum(II) acetylide complexes, [Pt2(μ-dppm)2(μ-PhC≡C)(PhC≡C) 2]ClO4 and [Pt2(μ-dppm)2(μ-1BuC≡)( tBuC≡C)Cl]ClO4 |
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Authors | |
Issue Date | 1993 |
Publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/organometallics |
Citation | Organometallics, 1993, v. 12 n. 6, p. 2197-2202 How to Cite? |
Abstract | Refluxing an ethanolic solution of [Pt(dppm-P,P′)2]Cl2 with Hg(PhC≡C)2 in ethanol gave air-stable [Pt2(μ-dppm)2(μ-PhC≡C) (PhC≡C)2]+ as the major product, isolated as the Cl- or ClO4 - (1) salt. A similar reaction with Hg(tBuC≡C)2 gave [Pt2(μ-dppm)2(μ-tBuC≡C) (tBuC≡C)-Cl]+ instead, also isolated as the Cl- or ClO4 - (2) salt. The crystal structures of 1 and 2 have been determined by X-ray diffraction. Compound 1 crystallizes in the monoclinic space group C2/c with Z = 4 in a unit cell of dimensions a = 27.942(7) Å, b = 11.218(4) Å, c = 25.720(7) Å, and β = 124.22(2)°. Compound 2 crystallizes in the triclinic space group P1 with Z = 2 in a unit cell of dimensions a = 11.783(3) Å, b = 12.791(3) Å, c = 21.210(7) Å, α = 89.11(3)°, β = 77.41(2)°, and γ = 71.50(2)°. Both structures have been solved by Patterson and Fourier methods and refined by full-matrix least squares on the basis of 5203 observed reflections to R and Rw values of 0.038 and 0.048 for 1 and 9724 observed reflections to R and Rw values of 0.033 and 0.044 for 2, respectively. Both complexes have been found to exhibit long-lived photoluminescence both in the solid state and in fluid solutions (solid-state emission: 1, λem = 618 nm, τo = 2.2 ± 0.2 μs; 2, λem = 621 nm, τo = 3.5 ± 0.3 μs). The phosphorescent state of 1 has been shown to be quenched by pyridinium acceptors. © 1993 American Chemical Society. |
Persistent Identifier | http://hdl.handle.net/10722/167353 |
ISSN | 2023 Impact Factor: 2.5 2023 SCImago Journal Rankings: 0.654 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Yam, VWW | en_US |
dc.contributor.author | Chan, LP | en_US |
dc.contributor.author | Lai, TF | en_US |
dc.date.accessioned | 2012-10-08T03:05:59Z | - |
dc.date.available | 2012-10-08T03:05:59Z | - |
dc.date.issued | 1993 | en_US |
dc.identifier.citation | Organometallics, 1993, v. 12 n. 6, p. 2197-2202 | en_US |
dc.identifier.issn | 0276-7333 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/167353 | - |
dc.description.abstract | Refluxing an ethanolic solution of [Pt(dppm-P,P′)2]Cl2 with Hg(PhC≡C)2 in ethanol gave air-stable [Pt2(μ-dppm)2(μ-PhC≡C) (PhC≡C)2]+ as the major product, isolated as the Cl- or ClO4 - (1) salt. A similar reaction with Hg(tBuC≡C)2 gave [Pt2(μ-dppm)2(μ-tBuC≡C) (tBuC≡C)-Cl]+ instead, also isolated as the Cl- or ClO4 - (2) salt. The crystal structures of 1 and 2 have been determined by X-ray diffraction. Compound 1 crystallizes in the monoclinic space group C2/c with Z = 4 in a unit cell of dimensions a = 27.942(7) Å, b = 11.218(4) Å, c = 25.720(7) Å, and β = 124.22(2)°. Compound 2 crystallizes in the triclinic space group P1 with Z = 2 in a unit cell of dimensions a = 11.783(3) Å, b = 12.791(3) Å, c = 21.210(7) Å, α = 89.11(3)°, β = 77.41(2)°, and γ = 71.50(2)°. Both structures have been solved by Patterson and Fourier methods and refined by full-matrix least squares on the basis of 5203 observed reflections to R and Rw values of 0.038 and 0.048 for 1 and 9724 observed reflections to R and Rw values of 0.033 and 0.044 for 2, respectively. Both complexes have been found to exhibit long-lived photoluminescence both in the solid state and in fluid solutions (solid-state emission: 1, λem = 618 nm, τo = 2.2 ± 0.2 μs; 2, λem = 621 nm, τo = 3.5 ± 0.3 μs). The phosphorescent state of 1 has been shown to be quenched by pyridinium acceptors. © 1993 American Chemical Society. | en_US |
dc.language | eng | en_US |
dc.publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/organometallics | en_US |
dc.relation.ispartof | Organometallics | en_US |
dc.title | Syntheses, photophysics, and X-ray structural characterization of dinuclear platinum(II) acetylide complexes, [Pt2(μ-dppm)2(μ-PhC≡C)(PhC≡C) 2]ClO4 and [Pt2(μ-dppm)2(μ-1BuC≡)( tBuC≡C)Cl]ClO4 | en_US |
dc.type | Article | en_US |
dc.identifier.email | Yam, VWW:wwyam@hku.hk | en_US |
dc.identifier.authority | Yam, VWW=rp00822 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1021/om00030a032 | - |
dc.identifier.scopus | eid_2-s2.0-0001541639 | en_US |
dc.identifier.volume | 12 | en_US |
dc.identifier.issue | 6 | en_US |
dc.identifier.spage | 2197 | en_US |
dc.identifier.epage | 2202 | en_US |
dc.identifier.isi | WOS:A1993LG15800032 | - |
dc.publisher.place | United States | en_US |
dc.identifier.scopusauthorid | Yam, VWW=18539304700 | en_US |
dc.identifier.scopusauthorid | Chan, LP=36907175200 | en_US |
dc.identifier.scopusauthorid | Lai, TF=7202203523 | en_US |
dc.identifier.issnl | 0276-7333 | - |