title: Crystal structure of chlorido-bis-[(1,2,5,6-η)-cyclo-octa-1,5-diene]iridium(I).
abstract: The title complex, [IrCl(C8H12)2], was synthesized directly from the reaction of IrCl3·3H2O with a large excess of cod (cod = cyclo-octa-1,5-diene) in alcoholic solvent. Large yellow needles were obtained by the slow cooling of a hot solution. Based on the positions of the chloride ligand and the mid-points of the four C=C bonds, the mol-ecule adopts a five-coordinate geometry that is midway between square pyramidal and trigonal bipyramidal. The material crystallizes in the ortho-rhom-bic space groupPbcawith one mol-ecule per asymmetric unit in a general position and shows no significant inter-molecular inter-actions. Individual mol-ecules are aligned along [010], and these rows form a pseudo-hexa-gonal packing arrangement.
authors.affiliation: Department of Chemistry, University of Rochester, Rochester, NY 14627, USA.
authors.forename: A K Fazlur
authors.initials: AK
authors.lastname: Rahman
authors.affiliation: Department of Chemistry, University of Rochester, Rochester, NY 14627, USA.
authors.forename: Miles
authors.initials: M
authors.lastname: Wilklow-Marnell
authors.affiliation: Department of Chemistry, University of Rochester, Rochester, NY 14627, USA.
authors.forename: William W
authors.initials: WW
authors.lastname: Brennessel
authors.affiliation: Department of Chemistry, University of Rochester, Rochester, NY 14627, USA.
authors.forename: William D
authors.initials: WD
authors.lastname: Jones
keywords: 1,5-cyclo­octa­diene; crystal structure; five-coordinate complex; iridium