Abstract
The structure of sulvanite, Cu3VS4 was solved by Pauling and Hultgren (1933). The bonding of V to S is an unusual one which, it was thought, warranted checking and refining the structure. The crystals have symmetry P43m, with a = 5.3912 ± 0.0007 Å. Pauling and Hultgren's structure was confirmed and refined by least squares. The new value of the positional parameter of S is x = 0.2372 ± 0.0003, which leads to a V-S distance of 2.214 Å and Cu-S distance of 2.297 Å.
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