Crystal structure of the new ternary indide Pr₁₁Ge_5.21In_4.79

Chem. Met. Alloys 9 (2016) 54-60

https://doi.org/10.30970/cma9.0322

Oksana KRAVETS, Galyna NYCHYPORUK, Ihor MUTS, Zenoviya SHPYRKA, Viktor HLUKHYY, Vasyl’ ZAREMBA

The new ternary indide Pr₁₁Ge_5.21In_4.79 was synthesized from the elements by arc-melting and subsequent annealing at 870 K. Single crystals were grown by a special annealing procedure in a sealed tantalum container in a resistance furnace. The crystal structure of the compound was determined by X-ray diffraction on a single crystal: Sm₁₁Ge₄In₆ structure type, I4/mmm, tI84, а = 1185.6(2) pm, c = 1654.8(3) pm, wR2 = 0.0623, 1051 F² values, 41 variables. Crystal chemistry in Pr₁₁Ge_5.21In_4.79 is discussed from a geometrical point of view.

3D-framework of Ge-centered polyhedra interpenetrated by the In-M network.

Keywords

Crystal structure / Single crystals / Indium