dc.contributor.author | Li, Zhaohui | |
dc.contributor.author | Loh, Zhi-Heng | |
dc.contributor.author | Fong, S.W. Audi | |
dc.contributor.author | Yan, Yaw Kai | |
dc.contributor.author | Henderson, William | |
dc.contributor.author | Mok, K.F. | |
dc.contributor.author | Hor, T.S. Andy | |
dc.date.accessioned | 2009-11-26T20:41:24Z | |
dc.date.available | 2009-11-26T20:41:24Z | |
dc.date.issued | 2000 | |
dc.identifier.citation | Li, 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.uri | https://hdl.handle.net/10289/3422 | |
dc.description.abstract | Two 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.iso | en | |
dc.publisher | ROYAL SOC CHEMISTRY | en_NZ |
dc.subject | chemistry | en |
dc.subject | heterometallic complexes | en |
dc.subject | spectrometry | en |
dc.title | Ligand-stabilization of an unusual square-based pyramidal geometry of Cd(II) and Zn(II) in an heterometallic {MPt₂S₂} core (M = Cd, Zn) | en |
dc.type | Journal Article | en |
dc.identifier.doi | 10.1039/a909254d | en |
dc.relation.isPartOf | Journal of Chemistry Society, Dalton Transactions | en_NZ |
pubs.begin-page | 1027 | en_NZ |
pubs.elements-id | 41299 | |
pubs.end-page | 1031 | en_NZ |
pubs.issue | 7 | en_NZ |
pubs.volume | 2000 | en_NZ |