Synthesis and structure of Ag_4Te(SO_4) - A new compound featuring a silver-telluride framework

Shestimerova T.A.; Mitiaev A.S.; Davliatshin D.I.; Shevelkov A.V.

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Synthesis and structure of Ag_4Te(SO_4) - A new compound featuring a silver-telluride framework

机译：Ag_4Te（SO_4）的合成与结构-具有碲化银骨架的新型化合物

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Tetrasilver telluride sulfate was obtained as a black air-stable polycrystalline powder; its structure was determined from X-ray powder diffraction data. The new compound crystallizes in the cubic space group P2 _13, with the unit cell parameter a = 8.6263(2) ? and Z = 4. The crystal structure of Ag_4Te(SO_4) is composed of a positively charged silver-telluride three-dimensional framework, in which the isolated tetrahedral SO_4~(2-) anions are embedded. The framework features an irregular coordination for tellurium atoms with a coordination number of six and manifold Ag-Ag contacts ranging from 2.99 to 3.14 ?. The distortion of the SO_4~(2-) anion as well as the interactions within the framework and between the framework and the SO _4~(2-) anions are analyzed with the help of the structural data, vibrational spectra, and band structure calculations.

机译：得到黑色的空气稳定的多晶粉末，即硫酸四银硫酸碲。由X射线粉末衍射数据确定其结构。新化合物在立方空间群P2 _13中结晶，其晶胞参数a = 8.6263（2）？ Z =4。Ag_4Te（SO_4）的晶体结构由带正电的三碲化银三维构架组成，其中嵌入了孤立的四面体SO_4〜（2-）阴离子。该框架的特征是碲原子的不规则配位，配位数为6，且Ag-Ag接触点范围为2.99至3.14?。借助结构数据，振动光谱和能带结构计算，分析了SO_4〜（2-）阴离子的畸变以及骨架内部以及骨架与SO _4〜（2-）阴离子之间的相互作用。。

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《Zeitschrift fur Anorganische und Allgemeine Chemie》 |2010年第11期|共6页
作者
Shestimerova T.A.; Mitiaev A.S.; Davliatshin D.I.; Shevelkov A.V.;
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正文语种 eng
中图分类化学;
关键词
Band structure calculations; Framework structure; Host-guest interactions; Silver; Tellurium;

机译：带结构计算;框架结构;主客体相互作用;银;碲;

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1. Synthesis and structure of Ag_4Te(SO_4) - A new compound featuring a silver-telluride framework [J] . Shestimerova T.A., Mitiaev A.S., Davliatshin D.I., Zeitschrift fur Anorganische und Allgemeine Chemie . 2010,第11期

机译：Ag_4Te（SO_4）的合成与结构-具有碲化银骨架的新型化合物
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Synthesis and structure of Ag_4Te(SO_4) - A new compound featuring a silver-telluride framework

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