title: [Cd2(Te6O13)][Cd2Cl6] and Cd7Cl8(Te7O17): novel tellurium(IV) oxide slabs and unusual cadmium chloride architectures.
abstract: Initial attempts to prepare new Ln-Cd-Te-O-Cl compounds led to the isolation of two novel cadmium tellurium(IV) oxychlorides with two different types of structures, namely, [Cd(2)(Te(6)O(13))][Cd(2)Cl(6)] and Cd(7)Cl(8)(Te(7)O(17)). Both compounds feature novel polymeric tellurium(IV) oxide anions and unusual cadmium chloride substructures. The structure of [Cd(2)(Te(6)O(13))][Cd(2)Cl(6)] is composed of 1D [Cd(2)Cl(6)](2)(-) double chains and (002) [Cd(2)(Te(6)O(13))](2+) layers. The 1D Te(6)O(13)(2)(-) slab of the [Cd(2)(Te(6)O(13))](2+) layer is formed by TeO(3), TeO(4), and TeO(5) groups via corner- and edge-sharing, and it contains six- and seven-membered tellurium(IV) polyhedral rings. The structure of Cd(7)Cl(8)(Te(7)O(17)) features a 3D network with long-narrow tunnels along the b axis. The two types of structural building blocks are 1D [Te(7)O(17)](6)(-) anions and unusual corrugated [Cd(7)Cl(8)](6+) layers based on "cyclohexane-like" Cd(3)Cl(3) rings.
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, and the Graduate School of the Chinese Academy of Sciences, Fuzhou 350002, P.R. China.
authors.forename: Hai-Long
authors.initials: HL
authors.lastname: Jiang
authors.forename: Jiang-Gao
authors.initials: JG
authors.lastname: Mao