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Pd(II) and Pt(II) complexes with chalcogenide derivatized phosphathia ligands

Connolly, Julie, Genge, Anthony R. J., Pope, Simon J. A. and Reid, Gillian 1998. Pd(II) and Pt(II) complexes with chalcogenide derivatized phosphathia ligands. Polyhedron 17 (13-14) , pp. 2331-2336. 10.1016/S0277-5387(97)00508-1

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The mixed phosphine sulfide/thioether and phosphine selenide/thioether ligands L1-L4 react with PdCl2 or PtCl2 in the presence of TlPF6 in MeNO2 solution to give the distorted square planar complexes [Pd(L)](PF6)2 or [Pt(L)](PF6)2 as powdered solids. IR spectroscopy shows ν(PS) or ν(PSe) for the complexes are to low frequency of free L1-L4, indicating coordination via the sulfide or selenide. 31P{1H}, 77Se{1H} and 195Pt NMR studies confirm η4-ligation in solution, and the spectra do not alter significantly upon cooling. Also, the 195Pt NMR chemical shifts indicate that the mixed phosphine sulfide/thioether donor set results in a very similar electronic environment at Pt(II) to a homoleptic tetrathioether donor set. δ(195Pt) for the mixed phosphine selenide/thioether complexes of Pt(II) occur at slightly lower frequency. The crystal structure of L3 is also reported.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Subjects: Q Science > QD Chemistry
Uncontrolled Keywords: Pd(II); Pt(II); chalcogenide
Publisher: Elsevier
ISSN: 0277-5387
Last Modified: 04 Jun 2017 04:37

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