Structure Refinement of AuSn2
نویسندگان
چکیده
Well-shaped single crystals of binary AuSn2 were obtained as a side product during the synthesis of LiAu3Sn4. The structure of AuSn2 has been studied by X-ray diffractometer data: Pbca, Z = 8, a = 689.8(1), b = 701.1(1), c = 1177.3(2) pm, wR2 = 0.0533, 1234 F2 values, and 29 variables. The gold atoms show a distorted octahedral coordination by tin at Au–Sn distances ranging from 272 to 283 pm. The structure can be considered as an intergrowth of pyrite and marcasite related slabs. Consequently one observes Sn1–Sn2 dumb-bells with a Sn–Sn distance of 289 pm, while all other Sn–Sn distances are larger than 322 pm.
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