title: Penta-cyclo-[8.2.1.1(4,7).0(2,9).0(3,8)]tetra-deca-5,11-diene.
abstract: The title compound, C(14)H(16), was prepared through [2 + 2] cyclo-addition of norbornadiene. There are two independent mol-ecules in the asymmetric unit: each is centrosymmetric with the centroid of the four-membered ring located about an inversion center. Each mol-ecule possesses an exo-trans-exo conformation.
authors.affiliation: Department of Chemical Engineering, Feng Chia University, 40724 Taichung,  Taiwan.
authors.forename: Hsing-Yang
authors.initials: HY
authors.lastname: Tsai
authors.forename: Ming-Hui
authors.initials: MH
authors.lastname: Luo
authors.forename: Wei-Chi
authors.initials: WC
authors.lastname: Lin
authors.forename: Che-Wei
authors.initials: CW
authors.lastname: Chang
authors.forename: Kew-Yu
authors.initials: KY
authors.lastname: Chen