Synthesis and reactivity of [Au(2-CH2-6-RC5H3N)(PPh3)] (R = H, Me). X-Ray structure of [Ag{Au(2-CH2-6-MeC5H3N)(PPh3)}2][ClO4]

Abstract

The reaction of Li(2-CH₂-6-RC₅H₃N) with [AuCl(PPh₃)] leads to the mononuclear complexes [Au(2-CH₂-6-RC₅H₃N)(PPh₃)] (R = H, Me). These react further with other copper, silver or gold compounds to give heteronuclear derivatives, [M{Au(2-CH₂-6-RC₅H₃N)(PPh₃)}₂][X] (M = Cu, X = PF₆ or M = Ag, X = ClO₄), or the dinuclear complex [Au(2-CH₂-6-MeC₅H₃N)]₂. The crystal structure of [Ag{Au(2-CH₂-6-MeC₅H₃N)(PPh₃)}₂][ClO₄] has been determined by X-ray diffraction studies and shows short interactions between the gold and silver centres.