Complexes of Gold(I) with a Chiral Diphosphine Ligand: A Polymer with Both Au···Ag and Ag···Ag Metallophilic Bonds
نویسندگان
چکیده
Dedicated to Professor Hubert Schmidbaur, the grand master of gold chemistry, on the occasion of his 75th birthday The chemistry of gold(I) with the ligand binap = 2,2′-bis(diphenylphosphino)-1,1′ -binaphthyl is reported. Reaction of [Au2Cl2(μ-binap)] with silver trifluoroacetate gave the corresponding complex [Au2(O2CCF3)2(μ-binap)], and crystallization in the presence of excess silver trifluoroacetate gave the unusual syndiotactic polymeric complex [{Au2Ag2(μ-O2CCF3)4(μ-binap)}n], which contains both Au· · ·Ag and Ag· · ·Ag metallophilic bonds. The trifluoroacetate ligands in [Au2(O2CCF3)2(μbinap)] can be replaced by nitrogen or phosphorus donor ligands to give complexes [Au2(κ1-4,4′bipyridine)2(μ-binap)](CF3CO2)2 or meso-[Au2(μ-binap)2](CF3CO2)2.
منابع مشابه
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