title: 3,3,5,5-Tetra-methyl-3,5-disila-4,10-dioxatetra-cyclo-[5.5.1.0.0]tridecane-9,11-dione.
abstract: The title compound, C(13)H(20)O(4)Si(2), is a siloxane-functionalized norbornane anhydride. Both five-membered heterocyclic rings of the mol-ecule have a planar structure, whereas the two five-membered aliphatic rings assume envelope conformations. Weak inter-molecular C-H⋯O hydrogen bonding is present in the crystal structure.
authors.affiliation: Laboratory of Adhesives and in-situ Polymerization Technology, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China and Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, Sichuan, People's Republic of China.
authors.forename: Peng-Peng
authors.initials: PP
authors.lastname: Sheng
authors.forename: Jun-Ying
authors.initials: JY
authors.lastname: Zhang
authors.forename: Lin
authors.initials: L
authors.lastname: Zhang