title: (η-Cyclo-penta-dien-yl){[3-(2,2-dicyano-ethen-yl)bicyclo-[2.2.1]hepta-2,5-dien-2-yl]ethyn-yl}(triphenyl-phosphine)nickel(II).
abstract: The title compound, [Ni(C(5)H(5))(C(13)H(7)N(2))(C(18)H(15)P)] or (η(5)-C(5)H(5))(PPh(3))Ni-C C-C(7)H(6)-C(H)=C(CN)(2), contains an unusual disubstituted norbornadienyl (NBD) ligand containing ethynyl (-C C-) and dicyano-vinyl [-C(H)=C(CN)(2)] groups. Disorder is present in the NBD group with site occupancies of 0.636 (10) and 0.364 (10) for two distinct orientations. There are no strong hydrogen bonds and the primary inter-actions are weak C-H⋯π(arene) inter-actions.
authors.forename: John F
authors.initials: JF
authors.lastname: Gallagher
authors.forename: Peter
authors.initials: P
authors.lastname: Butler
authors.forename: A R
authors.initials: AR
authors.lastname: Manning