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X-ray pure samples of the stannides RECuSn (RE=Sc,Y,La,Lu) were prepared by arc-melting of the elements and subsequent annealing. The four stannides were investigated by X-ray powder and single crystal diffraction: ZrBeSi type, P63/mmc, a=458.3(2), c=817.3(3) pm, wR2=0.0746,148 F2 values, 8 variable parameters for LaCuSn, NdPtSb type, space group P63mc, a=451.3(1), c=727.4(2) pm, wR2=0.0462,134 F2...
The stannides ScAuSn, YAuSn, and LuAuSn were synthesized as single phase materials from the elements via arc-melting. All samples were characterized by X-ray diffraction on powders and single crystals: MgAgAs type, F4¯3m, a=641.94(12) pm, wR2=0.035, 85 F2 values, 5 variables for ScAuSn, a=656.52(8) pm, wR2=0.029, 89 F2 values, 5 variables for LuAuSn, and NdPtSb type, P63mc, a=463.55(16), c=737.26(15) pm,...
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