X-ray powder diffraction refinement of Ag2In2SiSe6 structure and phase diagram of the AgInSe2-SiSe2 system

被引：0
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作者：
Olekseyuk, I.D. [1 ]
Sachanyuk, V.P. [1 ]
Parasyuk, O.V. [1 ]
机构：
[1] Department of General and Inorganic Chemistry, Volyn State University, Voli Avenue 13, 43009 Lutsk, Ukraine
来源：
Journal of Alloys and Compounds | 2006年 / 414卷 / 1-2期
关键词：
The phase diagram of the AgInSe2-SiSe2 system was investigated using the results of differential thermal analysis and X-ray diffraction. The existence of a new quaternary phase; Ag2In2SiSe6; was discovered in the system; it melts congruently at 1100 K and has a polymorphous transition at 1040 K. The crystal structure of the low-temperature (LT) modification of this phase was investigated using powder X-ray diffraction. Ag2In2SiSe6 crystallizes in a monoclinic structure; space group (S.G.) Cc (structural type Ag2In2GeSe6); with lattice parameters a = 1.26683(4) nm; b; 0.74565(3); nm; c = 1.26133(4) nm and β = 109.286(2)°. The atomic parameters were refined in the isotropic approximation to RI = 0.0758 and RP = 0.1096. © 2005 Elsevier B.V. All rights reserved;
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页码：73 / 77
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