Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1626403 | Journal of Alloys and Compounds | 2007 | 6 Pages |
Abstract
The crystal structures of the compounds R3CuSiS7 (R = Ce, Pr, Nd, Sm, Tb, Dy and Er) and R3CuSiSe7 (R = La, Ce, Pr, Nd, Sm, Gd, Tb and Dy) (La3CuSiS7 structure type, space group P63, Pearson symbol hP24) were determined by means of X-ray single crystal and powder diffraction. The R atoms are surrounded by distorted trigonal prisms. A triangular surrounding exists for the Cu atoms. A tetrahedral surrounding exists for the Si atoms. The S(Se)1 and S(Se)3 atoms are surrounded by tetrahedra also. Four cations surround every S(Se)2 atom.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
L.D. Gulay, O.S. Lychmanyuk, I.D. Olekseyuk, M. Daszkiewicz, J. Stępień-Damm, A. Pietraszko,