Reports

Distribution of Atoms in High Chalcocite, Cu2S

Science  19 Jul 1963:
Vol. 141, Issue 3577, pp. 276-277
DOI: 10.1126/science.141.3577.276

Abstract

In spite of its simple composition, the structure of chalcocite, CU2S, has long defied analysis. In high chalcocite the sulfur atoms are in hexagonal close-packing, while three varieties of copper atoms, with four-fold, three-fold, and two-fold coordinations respectively, are in disorder in the interstices.

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