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Synthesis and solid-state structural characterisation of Pt(II,IV) bromide complexes containing bidentate organothiomethylpyridine heteroleptic ligands

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posted on 2023-05-16, 21:21 authored by Jones, RC, Skelton, BW, Tolhurst, V, White, AH, Wilson, AJ, Allan CantyAllan Canty
A convenient synthetic method for the preparation of organothiomethylpyridine ligands 2-(RSCH2)C5H4N (R = Ph (L1), Me (L2)), 2-MeS-6-Me-C5H3N (L3), and 2-MeS-4-Me-C5H3N (L4) via the initial lithiation of substituted 2-picolines followed by the nucleophilic reaction with a diorganyldisulfide is described. The complexes [PtBr2L] (L = L1-L4) have been prepared in good to high yields as yellow solids with low solubility in organic solvents. The solid state structures of the complexes have been determined, showing the spatial arrangement of the complexes to depend significantly upon varying substituents within the ligand. The complexes undergo oxidation by bromine to form the tetravalent complexes [PtBr4(L)] (L = L1-L4). The solid state structures of [PtBr4(L2)] and [PtBr4(L4)] have been determined, and shown to be monomeric with the ligand chelating the platinum centre. © 2006 Elsevier Ltd. All rights reserved.

History

Publication title

Polyhedron

Volume

26

Pagination

708-718

ISSN

0277-5387

Department/School

School of Natural Sciences

Publisher

Pergamon-Elsevier

Place of publication

Oxford

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the chemical sciences

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