title: (eta(5)-Cyclopentadienyl)(3-hydroxy-3-methylbut-1-ynyl-kappaC(1))(triphenylphosphine-kappaP)nickel(II): novel O-H...pi bonding in an organometallic molecule.
abstract: In the title compound, [Ni(C(5)H(5))(C(5)H(7)O)(C(18)H(15)P)], the molecule adopts the expected half-sandwich structure with no unusual metal-ligand distances. No classical hydrogen bonds are found in the structure; instead, the OH group of the butynol unit is involved in an unusual O-H...pi interaction with the C[triple-bond]C group of an adjacent molecule. The crystal structure is further stabilized by C-H...O and C-H...pi interactions, leading to an extensive network of spiral columns.
authors.affiliation: Department of Chemistry, University of Otago, PO Box 56, Dunedin, New Zealand.
authors.forename: C John
authors.initials: CJ
authors.lastname: McAdam
authors.forename: Brian H
authors.initials: BH
authors.lastname: Robinson
authors.forename: Jim
authors.initials: J
authors.lastname: Simpson