DARSTELLUNG UND STRUKTUR VON Cp2ZrX2 UND + X- (X = TOLUOLSULFONAT)

Article abstract of DOI:10.1016/0022-328X(86)80083-3

Cp2Zr(C7H7SO3)2 (C) can be prepared from Cp2ZrCl2 and silver toluenesulfonate in acetonitrile.Reaction of C with H2O gives the ionic 18-electron species ⁺ C7H7SO3^- (D).The structures of both complexes have been determined by X-ray analyses.The Cp2Zr units in C and D have the usual bent metallocene structure.The metal-bonded O atoms of the three additional ligands in D lie in a plane bisecting the plane of the Cp ligands, the C7H7SO3 group being symmetrically flanked by the H2O ligands.The H2O-Zr-OH2 angle is 148 deg.On the other hand, the O-Zr-O angle of 90 deg in C is relatively small for a Cp2ZrX2 compound.