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Preparation and crystal structure of chromium silicon selenide containing a B12 icosahedron with a tunnel structure by Masato Sugimori; Hiroshi Fukuoka; Hideo Imoto; Taro Saito is a Chemistry article available to read on EtoBox.

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Chromium silicon boron selenide has been prepared by the reaction of chromium diboride and selenium in an evacuated silica tube at a high temperature. The compound is obtained as single crystals in a low yield. The X-ray studies have shown that the structure consists of the three-dimensional framework with a large tunnel and the filling component in the tunnels. The former is made of Si coordinated by four silicon atoms, chromium atoms coordinated by six selenium atoms, and B 12 icosahedra. The filling component has a strongly disordered structure and estimated to be a chain of B 2 Se 3 . Analysis of the occupational factors of the filling component has indicated that the composition of the compound is CrSi 3 (B 12 )Se 12 •(B 2 Se 3 ) 1.33 .

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Author

Masato Sugimori; Hiroshi Fukuoka; Hideo Imoto; Taro Saito

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-328X)

Published

2000

Language

EN

Field

Chemistry (Physical Sciences)