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Complexes of 1,3-bis(diphenylphosphino)propane (dppp) with dichloroplatinum(II) and bis(chlorogold(I)): Intramolecular versus intermolecular AuI-AuI association of (m-dppp)(AuCl)2 in catena and cyclo forms

, , , and . Zeitschrift fuer Anorganische und Allgemeine Chemie, 631 (8): 1355--1358 (2005)
DOI: 10.1002/zaac.200400514

Abstract

(m-Dppp)(AuCl)2, previously reported to assoc. intermolecularly in a chain (catena) structure through Au1-Au1 interactions (3.316 \AA), was obtained from gold(III) precursors in a cyclo form with shortened intramol. AuI-AuI contacts at 3.237 \AA and a puckered AuPCCCPAu seven-membered ring. DFT calcns. using a large relativistic basis to account for the d10-d10 interaction reproduce the obsd. mol. structure in the crystal of this linkage isomer, including the conspicuous distortion at one of the gold atoms. The chelate complex (dppp)PtCl2 was crystd. and structurally characterized as the dichloromethane solvate. on SciFinder(R)

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