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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