The crystal and molecular structure of bis(biscyclopentadienylchlorotitanium) oxide

Bis(biscyclopentadienylchlorotitanium) oxide, Cp₂TiCl)₂O, crystallizes in the enantiomorphic space groups P3₁21 and P3₂21 with a 7.742(1), c 27.177(7) Å. In this study only twins were obtained. On the basis of intensity data for 1106 independent reflections, the structure is described in P3₁21 with final residuals of R_F = 3.27% and R_WF = 2.53%. The molecule is very similar to that of the analogous zirconium compound. Mean bond lengths are CpTi(π), 2.09; ClTi, 2.41; and TiO, 1.84 Å. The TiOTi bond angle is 173.8°.