Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1627995 | Journal of Alloys and Compounds | 2006 | 4 Pages |
Abstract
The crystal structure of the Sc2PbX4 (X = S and Se) compounds (space group Pnma, Pearson symbol oP28) were determined by means of X-ray single crystal diffraction (a = 1.1642(4) nm, b = 0.3757(1) nm, c = 1.3711(4) nm, R1 = 0.0420 (Sc2PbS4)) and X-ray powder diffraction (a = 1.22029(5) nm, b = 0.39061(2) nm, c = 1.42801(6) nm, RBragg = 0.0954 (Sc2PbSe4)). Both compounds crystallize in the CaFe2O4 structure type. The Sc-centered octahedra and Pb-centered trigonal prisms with two additional atoms form columns along the Y-axis in the structure of the Sc2PbX4 (X = S and Se) compounds.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
V.Ya. Shemet, L.D. Gulay, J. Stępień-Damm, A. Pietraszko, I.D. Olekseyuk,