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2005
Structure
D 2000
29- 003
Crystal Structures of the ScCuSe2 and Sc 3CuSn3Se11 Compounds. — As revealed
by powder XRD, ScCuSe2 crystallizes in the space group P2 with Z = 4. The Se atoms
are stacked in a close-packed arrangement with layers in the sequence AB. The Sc
atoms occupy half of the octahedral sites, the Cu atoms are located in 3/8 of the tetrahedral sites. Sc3CuSn3Se11 crystallizes in the space group Fd3m with Z = 32/11. The Se
atoms are stacked in a close-packed arrangement with layers in the sequence ABC. The
Sc atoms and a statistical Sc+Sn mixture are located in all octahedral sites, the Cu atoms
in 1/8 of the tetrahedral sites. — (GULAY*, L. D.; SHEMET, V. Y.; OLEKSEYUK, I.
D.; J. Alloys Compd. 393 (2005) 1-2, 174-179; Dep. Gen. Inorg. Chem., Volyn State
Univ., Lutsk 43009, Ukraine; Eng.) — W. Pewestorf
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