| Syntheses and Single-crystal Structures of Er3GexGeS7 （1/4≤x≤ 1/2） |
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| 引用本文： | 曾卉一,郭胜平,郑发鲲,郭国聪.Syntheses and Single-crystal Structures of Er3GexGeS7 （1/4≤x≤ 1/2）[J].结构化学,2009,28(10):1205-1209. |
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| 作者姓名： | 曾卉一 郭胜平 郑发鲲 郭国聪 |
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| 作者单位： | State;Laboratory;Structural;Chemistry;Fujian;Institute;Research;Structure;Matter;Chinese;Academy;Sciences; |
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| 基金项目： | Supported by the NSFC (20871115);;the NSF of Fujian Province (2007J0173);;the NSF of CAS (KJCX2.YW. M10);;the 973 Program (2007CB936703) |
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| 摘 要： | As part of our systematic research on the acentric rare earth chalcogenides, the ErAlGeS5/KBr, Er3AgGeS7/KBr and Er6Ge3S14/KBr systems were investigated and three compounds belonging to the R6B2C2Q14 （R = rare earth, B = 6-coordinated element, C = 4-coordinated element, Q = S and Se） family were identified. These compounds crystallize in the P63 space group, and the crystal data are as follows： Er3Ge1/4GeS7, a = 9.6480（14）, c = 5.7920（12） A^°, Z = 2; Er3Ge0.382（8）GeS7, a = 9.6360（14）, c = 5.8460（12） A^°, Z = 2; Er3Ge1/2GeS7, a = 9.6061（13）, c = 5.8346（18）A^°, Z = 2. Single-crystal analysis indicated that the Er3GexGeS7 （x = 1/4, 0.382（8）, 1/2） structures consist of three types of building blocks： ErS7, GeS4 and GeS6 units. Er3MxGeS7 are deficient compounds with the B sites occupied partly by Ge（Ⅳ） and/or Ge（Ⅱ）.
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| 关 键 词： | 单晶分析 结构 硫族化合物 合成 空间群 体数据 系统 稀土 |
Syntheses and Single-crystal Structures of Er_3Ge_xGeS_7(1/4≤x≤1/2) |
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| ZENG Hui-Yi,GUO Sheng-Ping,ZHENG Fa-Kun,GUO Guo-Cong.Syntheses and Single-crystal Structures of Er_3Ge_xGeS_7(1/4≤x≤1/2)[J].Chinese Journal of Structural Chemistry,2009,28(10):1205-1209. |
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| Authors: | ZENG Hui-Yi GUO Sheng-Ping ZHENG Fa-Kun GUO Guo-Cong |
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| Institution: | State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,The Chinese Academy of Sciences,Fuzhou,Fujian 350002,China |
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| Abstract: | As part of our systematic research on the acentric rare earth chalcogenides,the ErAIGeS_5/KBr,Er_3AgGeS_7/KBr and Er_6Ge_3S_(14)/KBr systems were investigated and three compounds belonging to the R_6B_2C_2Q_(14)(R=rare earth,B=6-coordinated element,C=4-coordinated element,Q=S and Se) family were identified. These compounds crystallize in the P63 space group,and the crystal data are as follows: Er_3Ge_(1/4)GeS_7,α=9.6480(14),c=5.7920(12)(A),Z=2; Er_3Ge_(0.382(8))GeS_7,α=9.6360(14),c=5.8460(12)(A),Z=2; Er_3Ge_(1/2)GeS_7,α= 9.6061(13),c= 5.8346(18)(A),Z=2.Single-crystal analysis indicated that the Er_3Ge_xGeS_7(x=1/4,0.382(8),1/2) structures consist of three types of building blocks: ErS_7,GeS_4 and GeS_6 units. Er_3M_xGeS_7 are deficient compounds with the B sites occupied partly by Ge(Ⅳ) and/or Ge(Ⅱ). |
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| Keywords: | rare-earth chalcogenides acentric crystal structure deficient |
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