Meignen Vincent, Lafond Alain, Cario Laurent, Deudon Catherine, Meerschaut Alain
Institut des Matériaux Jean Rouxel, Laboratoire de Chimie des Solides, 2 Rue de la Houssinière, BP 32229, 44322 Nantes Cedex 3, France.
Acta Crystallogr C. 2003 Jul;59(Pt 7):i63-4. doi: 10.1107/s0108270103010552. Epub 2003 Jun 11.
The title compound, hexadecalanthanum pentatitanium heptadecasulfide heptadecaoxide, La(16)Ti(5)S(17+x)O(17) [x = 0.75 (9)], has been obtained as a by-product in the preparation of new oxychalcogenide compounds in the La/Ti/Ag/S/O system. La(16)Ti(5)S(17+x)O(17) crystallizes in the tetragonal system (space group I4/m) and is isostructural with Nd(16)Ti(5)S(17)O(17). The structure of the title compound consists of an [La(2)S(2)] rock-salt-type framework, which delimits [001] square channels containing two types of chains of corner-sharing Ti(O,S)(6) octahedra. These chains are connected through La(O,S)(n) polyhedra.
标题化合物十六镧五钛十七硫十七氧化物La(16)Ti(5)S(17+x)O(17) [x = 0.75 (9)]是在La/Ti/Ag/S/O体系中制备新型氧硫属化合物时作为副产物得到的。La(16)Ti(5)S(17+x)O(17)以四方晶系结晶（空间群I4/m），与Nd(16)Ti(5)S(17)O(17)同构。标题化合物的结构由一个[La(2)S(2)]岩盐型框架组成，该框架界定了[001]方形通道，通道中包含两种由共角Ti(O,S)(6)八面体组成的链。这些链通过La(O,S)(n)多面体相连。
