(η⁵-Cyclo­penta­dien­yl)(3-hydr­oxy-3-methyl­but-1-ynyl-κC¹)(triphenyl­phos­phine-κP)nickel(II): novel O—H...π bonding in an organo­metallic mol­ecule

In the title compound, [Ni(C₅H₅)(C₅H₇O)(C₁₈H₁₅P)], 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...π 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...π inter­actions, leading to an extensive network of spiral columns.