Crystal structure of lisiguangite, CuPtBiS3

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Marco E. Ciriotti
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Crystal structure of lisiguangite, CuPtBiS3

Messaggio da Marco E. Ciriotti » sab 26 ago, 2017 11:37

Referenza:
▪ Yu, Z, & Wang, H. (2017): The Crystal Structure of Lisiguangite. Acta Geologica Sinica, 91, 1270–1275.

Abstract:
The crystal structure of lisiguangite, CuPtBiS3, from Yanshan mountains, Chengde Prefecture, Hebei Province, China has been determined by single crystal X-ray diffraction. It belongs to orthorhombic space group P212121 with a = 7.7372(15) Å, b = 12.844(3) Å, c = 4.9062(10) Å, V = 487.57(17) Å3, Z = 4. The final full-matric least-square refinement on F2 converged with R1 = 0.0495 and wR2 = 0.0992 for 704 observed reflections [I≥2σ(I)]. Lisiguangite is the isomorph of known CuNiSbS3 and CuNiBiS3. Pt2+ and Bi3+ have the distorted octahedral coordination enviroments composed of two metal and four S and Cu+2 has a distorted tetrahedral coordination environment with four S atoms. Each S atom is surrounded by four metals to give a tetrahedral environment. The crystal structure is a complex 3 dimensional network.
Marco E. Ciriotti

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