MOLECULAR-STRUCTURE OF ANSA-COMPOUND (ETA(5)-C5H4)CME(2)(ETA(5)-C9H6)TICL2

The structure of a new ansa compound, (eta(5)-C5H4)CMe(2)(eta(5)-C9H6) TiCl2 (1), was studied by X-ray analysis: a = 15.00(1), b = 15.500(5), c = 13.032(4) Angstrom, beta = 92.66 degrees(4), V = 3025.1(1) Angstr om(3), space group P21/alpha, R = 0.038. The distorted tetrahedral coo rdination sphere of the Ti atom is formed by two Cl atoms and two pi-l igands. It was proposed that the angle (tau) between the C-M direction and the line normal to M-Cp can be considered as one of the geometric parameters characteristic of the ''structure-properties'' correlation .