High-temperature crystal chemistry of georgbokiite

被引:0
作者
Krivovichev, SV [1 ]
Semenova, TF [1 ]
Filatov, SK [1 ]
机构
[1] St Petersburg State Univ, St Petersburg 199164, Russia
关键词
D O I
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中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
Phase transformations and thermal deformations in a new mineral georgbokiite, Cu5O2(SeO3)(2)Cl-2, were studied by the X-ray diffraction method. It is shown that anisotropy of thermal expansion of georgbokiite crystals is explained most satisfactorily by the presence of oxocentered [O2Cu5] chains parallel to the c-axis of the structure. These chains consist of [OCu4]-tetrahedra sharing alternatively either their vertices or edges.
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页码:1003 / 1006
页数:4
相关论文
共 7 条
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