title: C60-induced alkyne-alkyne coupling and alkyne scission reactions of a tungsten tris(diphenylacetylene) complex.
abstract: Reaction of W(NCMe)(η(2)-PhC≡CPh)(3) with C(60) affords W(η(3)-NC(Me)C(60))(η(4),η(2)-C(6)Ph(6)) (2) and W(≡CPh)(NCMe)(η(2)-C(60)) (η(3),η(2)-C(5)Ph(5)) (3). The hexaphenylbenzene species of 2 shows an η(4)-butadiene + η(2)-olefin bonding mode and the nitrile carbon is inserted into one 6:5-ring junction of C(60). Compound 3 contains an η(3),η(2)-pentaphenylcyclopentadienyl and a benzylidyne group from 2 + 2 + 1 cyclization and scission reactions of the diphenylacetylene ligands.
authors.affiliation: Department of Chemistry and Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung , 804, Taiwan. wenyann@mail.nsysu.edu.tw
authors.forename: Wen-Yann
authors.initials: WY
authors.lastname: Yeh