Crystal structure of bis-(η2-ethyl-ene)(η5-penta-methyl-cyclo-penta-dien-yl)cobalt

摘要

The title compound, [Co(C10H15)(C2H4)2], was prepared by Na/Hg reduction of [Co2(C10H15)2(μ-Cl)2] in THF under an ethyl-ene atmosphere and crystallized from pentane at 193?K. The Co—C(olefin) bonds have an average length of 2.022?(2)??, while the Co—C(penta-dien-yl) bonds average 2.103?(19)??. The olefin C=C bonds are 1.410?(1)??. The dihedral angle between the planes defined by the cyclo-penta-dienyl ligand and the two olefin ligands is 0.25?(12)°. In the crystal, mol-ecules are linked into chains by C—H?π inter-actions.