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Article: Facile formation and redox of benzoxazole-2-thiolate-bridged dinuclear Pt(ii/iii) complexes

TitleFacile formation and redox of benzoxazole-2-thiolate-bridged dinuclear Pt(ii/iii) complexes
Authors
Issue Date2012
Citation
Dalton Transactions, 2012, v. 41, n. 40, p. 12568-12576 How to Cite?
AbstractReaction of [Pt(L)(μ-Cl)] 2 (L = ppy (2-phenylpyridine) or bzq (benzo[h]quinoline)) with 2-mercaptobenzoxazole (NOSH) and NaOAc in THF at r.t. yields the dinuclear Pt(ii) d 8-d 8 complexes [Pt 2L 2(μ-NOS-κN,S) 2] (L = ppy, 1; L = bzq, 2) and the Pt(iii) d 7-d 7 complexes [Pt 2(ppy) 2(μ-NOS-κN,S) 2(NOS-κS) 2] (L = ppy, 3; L = bzq, 4) in one pot. The C,N-cyclometalated ligand is chelating whereas the N,S-donating benzoxazole-2-thiolates doubly bridge the two metal centers. The Pt⋯Pt separations of 3.0204(3) and 2.9726(8) Å in 1 and 2 contract to 2.685(1) Å in 3 and 2.6923(3) Å in 4, respectively, when two S-bound thiolate ligands coordinate trans- to the Pt⋯Pt axis. However, cyclometalation is preserved and there is minimum perturbation of the bridging ligands. Complexes 3 and 4 can be also obtained by oxidative addition of the thiolate ligand. In the presence of NaBH 4, 3 and 4 can be reduced to 1 and 2, respectively. At r.t., 1 and 2 exhibit intense orange-red luminescence at 625 nm and 631 nm, respectively. The electrochemical properties of 1-4 have been also discussed. © 2012 The Royal Society of Chemistry.
Persistent Identifierhttp://hdl.handle.net/10722/219671
ISSN
2015 Impact Factor: 4.177
2015 SCImago Journal Rankings: 1.404

 

DC FieldValueLanguage
dc.contributor.authorWang, Zhe-
dc.contributor.authorJiang, Lu-
dc.contributor.authorLiu, Zhi Pan-
dc.contributor.authorGan, C. R Raymond-
dc.contributor.authorLiu, Zhaolin-
dc.contributor.authorZhang, Xin Hai-
dc.contributor.authorZhao, Jin-
dc.contributor.authorHor, T. S Andy-
dc.date.accessioned2015-09-23T02:57:41Z-
dc.date.available2015-09-23T02:57:41Z-
dc.date.issued2012-
dc.identifier.citationDalton Transactions, 2012, v. 41, n. 40, p. 12568-12576-
dc.identifier.issn1477-9226-
dc.identifier.urihttp://hdl.handle.net/10722/219671-
dc.description.abstractReaction of [Pt(L)(μ-Cl)] 2 (L = ppy (2-phenylpyridine) or bzq (benzo[h]quinoline)) with 2-mercaptobenzoxazole (NOSH) and NaOAc in THF at r.t. yields the dinuclear Pt(ii) d 8-d 8 complexes [Pt 2L 2(μ-NOS-κN,S) 2] (L = ppy, 1; L = bzq, 2) and the Pt(iii) d 7-d 7 complexes [Pt 2(ppy) 2(μ-NOS-κN,S) 2(NOS-κS) 2] (L = ppy, 3; L = bzq, 4) in one pot. The C,N-cyclometalated ligand is chelating whereas the N,S-donating benzoxazole-2-thiolates doubly bridge the two metal centers. The Pt⋯Pt separations of 3.0204(3) and 2.9726(8) Å in 1 and 2 contract to 2.685(1) Å in 3 and 2.6923(3) Å in 4, respectively, when two S-bound thiolate ligands coordinate trans- to the Pt⋯Pt axis. However, cyclometalation is preserved and there is minimum perturbation of the bridging ligands. Complexes 3 and 4 can be also obtained by oxidative addition of the thiolate ligand. In the presence of NaBH 4, 3 and 4 can be reduced to 1 and 2, respectively. At r.t., 1 and 2 exhibit intense orange-red luminescence at 625 nm and 631 nm, respectively. The electrochemical properties of 1-4 have been also discussed. © 2012 The Royal Society of Chemistry.-
dc.languageeng-
dc.relation.ispartofDalton Transactions-
dc.titleFacile formation and redox of benzoxazole-2-thiolate-bridged dinuclear Pt(ii/iii) complexes-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1039/c2dt31070h-
dc.identifier.scopuseid_2-s2.0-84866916127-
dc.identifier.volume41-
dc.identifier.issue40-
dc.identifier.spage12568-
dc.identifier.epage12576-
dc.identifier.eissn1477-9234-

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