The Lanthanoid Osmium Gallides Er2Os3Ga10 and Tm2Os3Ga10 with Yb2Ru3Ga10-type Structure
نویسندگان
چکیده
The title compounds were prepared by melting and annealing of stoichiometric mixtures of the elemental components in a high-frequency furnace. They are isotypic with Yb2Ru3Ga10 (P4/mbm, Z = 2). Their lattice constants were determined from X-ray powder data, and their crystal structures were refined from single-crystal X-ray data. Er2Os3Ga10: a = 883.4(1), c = 636.7(1) pm, R = 0.025 for 506 Fo values, and Tm2Os3Ga10: a = 883.2(1), c = 633.6(1) pm, R = 0.023 for 568 Fo values and 25 variable parameters each. The crystal structures of these intermetallic compounds are briefly discussed.
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