The crystal and molecular structure of dimethyl-π-cyclopentadienyl(methylcyclopentadiene)rhenium

Abstract

The crystal structure of dimethyl-π-cyclopentadienyl(methylcyclopentadiene)rhenium, C₅H₅Re(CH₃)₂·C₅H₅·CH₃ has been determined by single-crystal X-ray diffraction, by use of the heavy-atom method. The rings are inclined at an angle of 45° with two methyl groups lying in the plane bisecting this angle. The methylcyclopentadiene ring is non-planar. The mean Re–C bond distance is 2·24 Å. The crystals are monoclinic, space-group P2₁/c, a= 12·588, b= 7·751, c= 14·347 Å, β= 122·92°.