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Article: Rhenium(I) methoxo carbonyl complexes containing tetraphosphine or triphosphine ligands; Facile separation and X-ray crystallographic studies of d/l- and meso-[{Re2(μ-OMe)2(CO)6} 2(μ,μ′-1,1,4,7,10,10-hexaphenyl-1,4,7,10-tetra- phosphadecane)]

TitleRhenium(I) methoxo carbonyl complexes containing tetraphosphine or triphosphine ligands; Facile separation and X-ray crystallographic studies of d/l- and meso-[{Re2(μ-OMe)2(CO)6} 2(μ,μ′-1,1,4,7,10,10-hexaphenyl-1,4,7,10-tetra- phosphadecane)]
Authors
KeywordsCarbonyl-methoxo complex
Tetraphosphine
Rhenium carbonyl
Amine N-oxide
Multinuclear aggregates
Triphosphine
Issue Date1999
Citation
Journal of Organometallic Chemistry, 1999, v. 590, n. 2, p. 138-148 How to Cite?
AbstractReaction of the activated mixture of Re2(CO)10, Me3NO and MeOH with a 1:1 mixture of rac (d/l)- and meso-1,1,4,7,10,10-hexaphenyl-1,4,7,10-tetraphosphadecane (hptpd) yields a mixture of (d/l)- and meso-[{Re2(μ-OMe)2(CO)6} 2(μ,μ′-hptpd)] 1. The diastereomers can be easily separated by selective dissolution of d/l-1 in benzene, and give clearly distinguishable 1H- and 31P-NMR spectra. The fluxional behavior of d/l-1 in solution has been studied by variable-temperature 1H- and 31P-{1H}-NMR spectroscopy. The crystal structures of both d/l- and meso-1 have been determined. Both molecules consist of two {Re2(μ-OMe)2(CO)6} moieties which are bridged by the two P-CH2-CH2-P moieties of the hptpd ligand. Whilst the molecules of meso-1 possess crystallographic i-symmetry, those of d/l-1 do not have any crystallographic symmetry. These diastereomers therefore give clearly distinguishable Raman spectra in the solid state. Reaction of tris[2-(diphenylphosphino)ethyl]phosphine (tdppep) with the activated mixture affords the complex [{Re2(μ-OMe)2(CO)6}(μ,η 2-tdppep)] 2, and the analogous reaction involving bis[2-diphenylphospinoethyl)phenylphosphine (triphos) gives [{Re2(μ-OMe)2(CO) 6}(μ,μ′,η3-triphos){Re 2(CO)9}] 3 and [{Re2(μ-OMe)2(CO)6}(μ,η 2-triphos)] 4. © 1999 Elsevier Science S.A.
Persistent Identifierhttp://hdl.handle.net/10722/219348
ISSN
2015 Impact Factor: 2.336
2015 SCImago Journal Rankings: 0.732

 

DC FieldValueLanguage
dc.contributor.authorJiang, Chenghua-
dc.contributor.authorWen, Yuh Sheng-
dc.contributor.authorLiu, Ling Kang-
dc.contributor.authorHor, T. S Andy-
dc.contributor.authorYan, Yaw Kai-
dc.date.accessioned2015-09-23T02:56:51Z-
dc.date.available2015-09-23T02:56:51Z-
dc.date.issued1999-
dc.identifier.citationJournal of Organometallic Chemistry, 1999, v. 590, n. 2, p. 138-148-
dc.identifier.issn0022-328X-
dc.identifier.urihttp://hdl.handle.net/10722/219348-
dc.description.abstractReaction of the activated mixture of Re2(CO)10, Me3NO and MeOH with a 1:1 mixture of rac (d/l)- and meso-1,1,4,7,10,10-hexaphenyl-1,4,7,10-tetraphosphadecane (hptpd) yields a mixture of (d/l)- and meso-[{Re2(μ-OMe)2(CO)6} 2(μ,μ′-hptpd)] 1. The diastereomers can be easily separated by selective dissolution of d/l-1 in benzene, and give clearly distinguishable 1H- and 31P-NMR spectra. The fluxional behavior of d/l-1 in solution has been studied by variable-temperature 1H- and 31P-{1H}-NMR spectroscopy. The crystal structures of both d/l- and meso-1 have been determined. Both molecules consist of two {Re2(μ-OMe)2(CO)6} moieties which are bridged by the two P-CH2-CH2-P moieties of the hptpd ligand. Whilst the molecules of meso-1 possess crystallographic i-symmetry, those of d/l-1 do not have any crystallographic symmetry. These diastereomers therefore give clearly distinguishable Raman spectra in the solid state. Reaction of tris[2-(diphenylphosphino)ethyl]phosphine (tdppep) with the activated mixture affords the complex [{Re2(μ-OMe)2(CO)6}(μ,η 2-tdppep)] 2, and the analogous reaction involving bis[2-diphenylphospinoethyl)phenylphosphine (triphos) gives [{Re2(μ-OMe)2(CO) 6}(μ,μ′,η3-triphos){Re 2(CO)9}] 3 and [{Re2(μ-OMe)2(CO)6}(μ,η 2-triphos)] 4. © 1999 Elsevier Science S.A.-
dc.languageeng-
dc.relation.ispartofJournal of Organometallic Chemistry-
dc.subjectCarbonyl-methoxo complex-
dc.subjectTetraphosphine-
dc.subjectRhenium carbonyl-
dc.subjectAmine N-oxide-
dc.subjectMultinuclear aggregates-
dc.subjectTriphosphine-
dc.titleRhenium(I) methoxo carbonyl complexes containing tetraphosphine or triphosphine ligands; Facile separation and X-ray crystallographic studies of d/l- and meso-[{Re2(μ-OMe)2(CO)6} 2(μ,μ′-1,1,4,7,10,10-hexaphenyl-1,4,7,10-tetra- phosphadecane)]-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0000223926-
dc.identifier.volume590-
dc.identifier.issue2-
dc.identifier.spage138-
dc.identifier.epage148-

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