Dinuclear organoplatinum(II)-methyldiphenylphosphine complexes of nicotinic acid

Abstract

The preparation and characterisation of a series of novel, dinuclear organoplatinum(II) complexes of methyldiphenylphosphine, trans-[Pt(PMePh2)2(C5H4N(CO 2H))-μ-aryl-Pt(PMePh2)2(C5H 4N(CO2H))](OTf)2 (aryl = phenyl, 4,4′-biphenyl, 4,4″-p-terphenyl, or 4,4′-benzophenone; OTf = triflate), in which nicotinic acid acts a nitrogen-donor ligand are described. The key structural feature of each complex is the presence of a carboxylic acid group at each end of the molecule. This allows for their association via intermolecular hydrogen-bonds in low polarity solvents. The complexes are potentially useful tectons (building blocks) for the construction of metal-containing supramolecular assemblies. © 2000 Published by Elsevier Science S.A. All rights reserved.