Synthesis and Structure of a New Tetrakis(pentafluorophenyl)borate Salt of the Silver(I) Cation with Novel Trigonal Planar Tris(benzene) Coordination

Abstract

A new, analytically pure silver(I) salt, Ag(C6H6)3+B(C6F5)4- (1), was prepared, and its structure determined by single-crystal X-ray crystallography. The geometry around the silver atom in salt 1 is trigonal planar, which represents a novel coordination mode for a silver(I) coordinated with three independent arene molecules. The three benzene molecules are bound to the silver atom with estimated hapticities of η1.36, η1.31, and η1.44. No contact was found between the silver cation and the B(C6F5)4- anion.