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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >MIn3S5 (M= Rb, Cs), a new structure type based on a joint ccp arrangement of S2- and M+: Structure, microstructure, and twinning
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MIn3S5 (M= Rb, Cs), a new structure type based on a joint ccp arrangement of S2- and M+: Structure, microstructure, and twinning

机译:MIn3S5(M = Rb,Cs),一种基于S2-和M +的联合ccp排列的新结构类型:结构,微观结构和孪晶

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摘要

The compounds MIn3S5 (M = Rb, Cs) represent new ternary chalcogenides on the quasi binary section M2S-In2S3 (M = Rb, Cs) with the two binary phases in a molar ratio of 1:3. RbIn3S5 and CsIn3S5 (both red-transparent) crystallize in a new structure type (SG: P2/m, Z = 3). The indium atoms are coordinated by sulfur atoms with tetrahedral as well as octahedral arrangement, while the coordination numbers of the two crystallographically independent M atoms are nine and ten. A special feature of these solids is the slightly distorted joint ccp arrangement of the sulfur and alkali metal atoms. The crystals of both solids are characterized by a systematic twinning based on the peculiarity just mentioned. The twinnig law and the atomic arrangement at the twin interface have been investigated by single crystal X-Ray diffraction and high resolution electron microscopy (HREM). [References: 14]
机译:化合物MIn3S5(M = Rb,Cs)代表准二元截面M2S-In2S3(M = Rb,Cs)上的新三元硫属元素化物,两个二元相的摩尔比为1:3。 RbIn3S5和CsIn3S5(均为红色透明)结晶为新的结构类型(SG:P2 / m,Z = 3)。铟原子由具有四面体和八面体排列的硫原子配位,而两个在晶体学上独立的M原子的配位数为9和10。这些固体的一个特殊特征是硫和碱金属原子的联合ccp排列略有变形。两种固体的晶体都具有基于上述特性的系统孪晶的特征。孪晶定律和孪晶界面处的原子排列已通过单晶X射线衍射和高分辨率电子显微镜(HREM)进行了研究。 [参考:14]

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