Abstract
Addition of molar equivalent of [Au 2Cl 2(μ-dppf)] to [Fe(C 5H 4PPh 2) 2] (dppf) gives an intermediate complex [AuCl(dppf)] x ( 1) which readily polymerises in solution to give [AuCl(dppf)] n . nCH 2Cl 2( 2). X-ray diffraction analysis of 2 revealed a repeating unit of [AuCl(dppf)] propagating one-dimensionally along the c axis to give a zigzag chain. Complex 1 metathesises with AgNO 3 to give [Au(NO 3)(dppf)] x which reacts with HCO 2Na to give [Au 2(dppf- P, P′) 2(μ-dppf)](NO 3) 2.2H 2O ( 3) as one of the products. The X-ray structure of 3 shows a centrosymmetric dimeric framework with two Au(dppf) chelates bridged by a dppf ligand. Both 2 and 3 show negligible inter- or intramolecular Au ⋯ Au interactions.
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