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dc.contributor.authorLi, Zhaohui
dc.contributor.authorLoh, Zhi-Heng
dc.contributor.authorFong, S.W. Audi
dc.contributor.authorYan, Yaw Kai
dc.contributor.authorHenderson, William
dc.contributor.authorMok, K.F.
dc.contributor.authorHor, T.S. Andy
dc.date.accessioned2009-11-26T20:41:24Z
dc.date.available2009-11-26T20:41:24Z
dc.date.issued2000
dc.identifier.citationLi, Z., Loh, Z. –H., Fong, S. W. A., Yan, Y. –K., Henderson, W., Mok, K. F., & Hor, T. S. Andy. (2000). Ligand-stabilization of an unusual square-based pyramidal geometry of Cd(II) and Zn(II) in an heterometallic {MPt₂S₂} core (M = Cd, Zn). Journal of Chemical Society Dalton Transactions, 1027-1031.en
dc.identifier.urihttps://hdl.handle.net/10289/3422
dc.description.abstractTwo heterometallic complexes, [Pt₂MCl(bipy)(PPh₃)₄(μ₃-S)₂][PF₆] (M = Zn, 2, Cd, 3) were synthesized from [Pt₂(PPh₃)₄(μ-S)₂] and characterized by single-crystal X-ray diffraction and electrospray ionization mass spectrometry. Two unusual square-based pyramidal (sbp) Zn(II) and Cd(II) structures are evident. VT 31P-{1H} NMR studies showed that 2 and 3 are fluxional at rt whereby rapid ligand exchange takes place by a non-dissociative mechanism. At intermediate temperatures, this motion slows down to a flipping movement of the {Pt₂S₂} ligand. At 183 K, all four phosphines are inequivalent in a distorted sbp model similar to that observed in the solid state. Nonlocal density functional theory calculations reveal that the formation of a trigonal bipyramidal intermediate in the fluxional process is favored over that of the tetrahedral species for both 2 and 3. The M–Cl (M = Zn, Cd) bonds are notably strong.en
dc.language.isoen
dc.publisherROYAL SOC CHEMISTRYen_NZ
dc.subjectchemistryen
dc.subjectheterometallic complexesen
dc.subjectspectrometryen
dc.titleLigand-stabilization of an unusual square-based pyramidal geometry of Cd(II) and Zn(II) in an heterometallic {MPt₂S₂} core (M = Cd, Zn)en
dc.typeJournal Articleen
dc.identifier.doi10.1039/a909254den
dc.relation.isPartOfJournal of Chemistry Society, Dalton Transactionsen_NZ
pubs.begin-page1027en_NZ
pubs.elements-id41299
pubs.end-page1031en_NZ
pubs.issue7en_NZ
pubs.volume2000en_NZ


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