Abstract
Metathetic reactions of gold(I) halide complexes and the potassium salt of 2,2′-bibenzimidazol afford binuclear bibenzimidazolate gold(I) complexes with the general formula {Au 2L 2}(μ-BiBzIm) L = PPh 3, PBu n 3, P(OMe) 3; L 2 = 1,1-bis(diphenylphosphine)-methane (dppm), 1,2-bis(diphenylphosphine)ethane (dppe). These complexes are Lewis bases and can be used as precursors for the synthesis of tri and tetranuclear cationic gold(I) complexes, or trinuclear gold(I) and palladium(II) complexes where the bibenzimidazolate anion is acting as bridging tetranuclear ligand. An hexanuclear gold(I)-palladium(II) complex is also described.
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