title: A molecule with a C1-homobasketane framework.
abstract: The title compound, 6-(1,3-benzodithiol-2-ylidene)-5,7-dimethyl-1,2-diphenylpentacyclo[5.4.0.0(2,5).0(3,11).0(4,8)]undecane, C(32)H(28)S(2), with a C(1)-homobasketane framework, crystallizes in the P-1 space group with one molecule in the asymmetric unit. The two cyclobutane rings in the cage are in a puckered conformation. Due to the enhanced through-bond interaction of the phenyl pi systems involving a strained sigma bond, the (Ph-)C-C(-Ph) bond length is significantly extended, to 1.610 (3) A.
authors.affiliation: Research Centre for Molecular Materials, Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan. tomura@ims.ac.jp
authors.forename: M
authors.initials: M
authors.lastname: Tomura
authors.forename: Y
authors.initials: Y
authors.lastname: Yamashita