Abstract

Chelate metal complexes have been synthesised by reacting [MCODCl 2] (M=Pd, Pt) and 3,3,8,8-tetramethyl-1,6-dioxa-4,9-diaza-5λ 5-phosphaspiro[4,4]nonane. The general formula of the products is cis-[MCl 2L], where L is a P, N-bidentate coordinated P(III) form of the initial hydrophosphorane. The structure of the products was determined by IR, 1H, 13C, 14N, 15N, 31P, and 195Pt NMR spectroscopy, plasma and laser desorption mass spectrometry, sedimentation analysis, X-ray photoelectron spectroscopy and, in the case of platinum products, by single-crystal X-ray diffraction. A tendency of the complexes to reorganise in organic solvents was revealed. In the case of the palladium complex, the process is accompanied by an increase in the degree of nuclearity.

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