title: Crystal structure of bis-(η2-ethyl-ene)(η5-penta-methyl-cyclo-penta-dien-yl)cobalt.
abstract: 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) Å, while the Co-C(penta-dien-yl) bonds average 2.103 (19) Å. The olefin C=C bonds are 1.410 (1) Å. 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.
authors.affiliation: Department of Chemistry, Saint Mary's University, 923 Robie St., Halifax, NS, B3H 3C3, Canada.
authors.forename: Chandika D
authors.initials: CD
authors.lastname: Ramful
authors.affiliation: Department of Chemistry, Saint Mary's University, 923 Robie St., Halifax, NS, B3H 3C3, Canada.
authors.forename: Katherine N
authors.initials: KN
authors.lastname: Robertson
authors.affiliation: Department of Chemistry, Saint Mary's University, 923 Robie St., Halifax, NS, B3H 3C3, Canada.
authors.forename: Kai E O
authors.initials: KE
authors.lastname: Ylijoki
keywords: cobalt; crystal structure; olefin complex; penta­methyl­cyclo­penta­dien­yl