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  • 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.
    Author: McAdam CJ, Robinson BH, Simpson J.
    Journal: Acta Crystallogr C; 2007 Jul; 63(Pt 7):m338-40. PubMed ID: 17609561.
    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.
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