Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0022-328X(01)01031-2
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dc.titleChemistry of cyclopentadienyl tricarbonylchromium dimer. Cleavage of bis(thiophosphoryl)disulfanes. Syntheses and X-ray crystal structures of CpCr(CO)2(S2P(OR)2), CpCr(S2P(OR)2)2 and Cr(S2P(OR)2)3 (R=iPr)
dc.contributor.authorGoh, L.Y.
dc.contributor.authorWeng, Z.
dc.contributor.authorLeong, W.K.
dc.contributor.authorHaiduc, I.
dc.contributor.authorLo, K.M.
dc.contributor.authorWong, R.C.S.
dc.date.accessioned2014-10-16T08:22:41Z
dc.date.available2014-10-16T08:22:41Z
dc.date.issued2001-08-10
dc.identifier.citationGoh, L.Y., Weng, Z., Leong, W.K., Haiduc, I., Lo, K.M., Wong, R.C.S. (2001-08-10). Chemistry of cyclopentadienyl tricarbonylchromium dimer. Cleavage of bis(thiophosphoryl)disulfanes. Syntheses and X-ray crystal structures of CpCr(CO)2(S2P(OR)2), CpCr(S2P(OR)2)2 and Cr(S2P(OR)2)3 (R=iPr). Journal of Organometallic Chemistry 631 (1-2) : 67-75. ScholarBank@NUS Repository. https://doi.org/10.1016/S0022-328X(01)01031-2
dc.identifier.issn0022328X
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/93293
dc.description.abstractThe facile reaction of [CpCr(CO)3]2 (Cp=η5-C5H5) with one mole equivalent of bis(thiophosphoryl)disulfanes, (RO)2P(S)SSP(S)(OR)2 (R=iPr), at ambient temperature, led to the isolation of dark-purple solids of CpCr(CO)2(S2P(OR)2) (2, yield: 32%) and blue solids of CpCr(S2P(OR)2)2 (3, yield: 30%). At 70-80°C, the reaction gave 3 (yield: 35%) and Cr(S2P(OR)2)3 (4, yield: 11%). 1H-NMR spectral studies demonstrated that 3 and 4 were derived from 2, the primary product. X-ray diffraction analyses showed that 2 possesses cis CO ligands and a bidentate SP(S)(OR)2 ligand, while 3 contains both an unidentate and a bidentate ligand, and in 4 the Cr atom is octahedrally symmetrically coordinated to the three bidentate phosphorylthioato ligand. Variable temperature 1H and 31P spectral studies showed the occurrence of very rapid unidentate-bidentate exchange between the ligands in 3 in the temperature range -65 to 80°C. It is also shown that the CrCr complex [CpCr(CO)2]2 reacted with [(iPrO)2P(S)S]2, albeit much less readily, generating 3 as the eventual product. © 2001 Elsevier Science B.V.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/S0022-328X(01)01031-2
dc.sourceScopus
dc.subject15-Electron chromium(III)
dc.subjectCrystal structures
dc.subjectCyclopentadienylchromium
dc.subjectDi-isopropyldithiophosphate
dc.subjectPhosphorodithioato
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.description.doi10.1016/S0022-328X(01)01031-2
dc.description.sourcetitleJournal of Organometallic Chemistry
dc.description.volume631
dc.description.issue1-2
dc.description.page67-75
dc.description.codenJORCA
dc.identifier.isiut000170950900011
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