title: 2,2,4,4-Tetra-phenyl-1,3-bis-(3,3,5,5-tetra-methyl-1,1-diphenyl-5-vinyl-trisilox-an-1-yl)-cyclo-disilazane.
abstract: The title mol-ecule, C(60)H(70)N(2)O(4)Si(8), lies on an inversion center. In the asymmetric unit, one of the phenyl rings is disordered over two sets of sites with refined occupancies 0.58 (2) and 0.42 (2). In addition, in two substitution sites of the terminal dimeth-yl(vin-yl)silyl unit, a methyl group and the vinyl group are disordered over the same site with refined occupancies 0.523 (13) and 0.477 (13).
authors.affiliation: Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Lv
authors.forename: Lina
authors.initials: L
authors.lastname: Dai
authors.forename: Xuezhong
authors.initials: X
authors.lastname: Zhang
authors.forename: Zhijie
authors.initials: Z
authors.lastname: Zhang
authors.forename: Zemin
authors.initials: Z
authors.lastname: Xie