Crystal structure of vanadocene (η5-C5H5)2V

Abstract

The crystal structure of vanadocene has been determined from counter data, and refined by full-matrix least-squares techniques. The crystals belong to the monoclinic space group P21/n with a = 9.269(3), b = 8.020(3), c = 5.892(2) Å, β = 91.21(3)°, and Dx = 1.37 gcm-3 for Z = 2. The final R value for 583 observed reflections is 0.031. The vanadium atom resides on a crystallographic center of inversion. The cyclopentadienyl groups are statistically disordered 70-30%. The average vanadium-carbon (η5) bond distance is 2.26(2) Å. © 1981 Plenum Publishing Corporation.