Syntheses and Single-crystal Structures of Ln3Sn0.25GeS7（Ln=La,Sm）

• 作者: GUO Guo-Cong JIANG Xiao-Ming LIU Bin-Wen ZENG Hui-Yi ZHANG Ming-Jian ZHAO Zhong-Yan ZHENG Fa-Kur
• 来源期刊: 结构化学
• 学科: 化学
• 关键词: 晶体结构 合成 X-射线衍射分析 单晶 固相反应 化合物 镧 钐
• 年，卷（期）: 2012,（8）
• 页码范围: 1135-1139
• 页数: 5页
• 分类号: O614.121|O614.612
• 语种: 英文

摘要

Two new quaternary sulfides,La3Sn0.25GeS71 and Sm3 Sn0.25GeS72,have been synthesized by a facile solid-state reaction,and their crystal structures were determined by singlecrystal X-ray diffraction analysis.The two compounds crystallize in the P6 3 space group,and the crystal data are as follows-La3Sn0.25GeS7：a=10.3335（7）,c=5.8455（7）,Z=2;Sm3Sn0.25GeS7：a=9.999（3）,c=5.787（2）,Z=2.Single-crystal analysis indicated that the two compounds consist of three types of building blocks：LnS 8 anti-tetragonal prism,SnS 6 octahedron,and GeS 4 tetrahedron.