Synthesis and crystal structure of CaAgBi and BaAg1.837Bi2
Synthesis and crystal structure of CaAgBi and BaAg1.837Bi2
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CaAgBi和BaAg1.837Bi2的合成和晶体结构
DOI：
10.1016/j.jallcom.2006.05.001
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发表时间：
2007-03
影响因子：
6.2
通讯作者：
中科院分区：
文献类型：
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作者：
Two ternary alkali earth silver bismuthides, CaAgBi and BaAg{sub 1.837}Bi{sub 2}, have been synthesized by solid-state reactions of the corresponding metals in welded Nb tubes at high temperature. Their structures have been established by single-crystal X-ray diffraction studies. CaAgBi crystallizes in the hexagonal space group P6{sub 3} mc (No.186) with cell parameters of a = b = 4.8113(4) A, c = 7.8273(9) A, V = 156.92(3) A{sup 3}, and Z = 2. BaAg{sub 1.837}Bi{sub 2} belongs to tetragonal space group P4/nmm (No.129) with cell parameters of a = b = 4.9202(2) A, c = 11.628(1) A, V = 281.50(3) A{sup 3}, and Z = 2. The structure of CaAgBi is of the LiGaGe type, and features a three-dimensional four-connected (3D4C) anionic network with Ca{sup 2+} encapsulated in the channels formed by [Ag{sub 3}Bi{sub 3}] six-membered rings. BaAg{sub 1.837}Bi{sub 2} is isostructural with CaBe{sub 2}Ge{sub 2}, a variant of the tetragonal ThCr{sub 2}Si{sub 2}-type structure. Its structure exhibits a three-dimensional anionic network built of (0 0 1) and (0 0 2) puckered [Ag{sub 2}Bi{sub 2}] layers interconnected via additional Ag-Bi bonds along the c-axis. BaAg{sub 1.837}Bi{sub 2} is metallic based on band structure calculations.
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DOI：
10.1515/znb-1972-1008
发表时间：
1972-10
期刊：
Zeitschrift für Naturforschung B
影响因子：
--
作者：
B. Eisenmann;N. May;W. Mueller;H. Schäfer
通讯作者：
B. Eisenmann;N. May;W. Mueller;H. Schäfer
DOI：
10.1002/zaac.19744100303
发表时间：
1974-12
期刊：
Zeitschrift für anorganische und allgemeine Chemie
影响因子：
--
作者：
W. Bockelmann;Hans‐Uwe Schuster
通讯作者：
W. Bockelmann;Hans‐Uwe Schuster
DOI：
10.1179/imtlr.1973.18.1.39
发表时间：
1973-03
期刊：
International Metallurgical Reviews
影响因子：
--
作者：
A. Hellawell
通讯作者：
A. Hellawell
DOI：
10.1063/1.3128023
发表时间：
1972
期刊：
--
影响因子：
--
作者：
W. B. Pearson;D. Weaire
通讯作者：
W. B. Pearson;D. Weaire
DOI：
10.1002/chin.200027246
发表时间：
2000-03
期刊：
ChemInform
影响因子：
--
作者：
R. Poettgen;D. Johrendt
通讯作者：
R. Poettgen;D. Johrendt