Silver complexes [Ph3PCH2CH2PPh3]2+[Ag2Cl4]2–, [Ph3PCH2OCH3]2+[Ag2Cl4]2-, [Ph3P(i-Am)]2+[Ag2Br4]2−, [Ph3PC6H11-cyclo]2+[Ag2Br4]2−, [Ph3PCH2Ph]2+[Ag2Br4]2−, and [Ph3PCH=CH2]n+[Ag2Br3]n-, [Me4P]n+[Ag2Br3]n-: Synthesis and structure

Abstract

Silver complexes [Ph₃PCH₂CH₂PPh₃]²⁺[Ag₂Cl₄]^2‒ (I), [Ph₃PCH₂OCH₃]₂⁺[Ag₂Cl₄]^2- (II), [Ph₃P(i-Am)]₂⁺[Ag₂Br₄]^2- (III), [Ph₃PC₆H₁₁-cyclo]₂⁺[Ag₂Br₄]^2- (IV), [Ph₃PCH₂Ph]₂⁺[Ag₂Br₄]^2- (V), [Ph₃PCH = CH₂]_n⁺[Ag₂Br₃]_n^- (VII) have been synthesized by the reaction between tetraorganylphosphonium halides and silver chloride or silver bromide in dimethylsulfoxide. According to X-ray diffraction data, the ionic complexes are built of tetraorganylphosphonium cations and binuclear (I‒V) or polynuclear (VI, VII) anions. In the anions of complexes VI and VII, silver atoms are tetracoordinated, and bromine atoms have coordination numbers of 2 and 4.