Single crystal investigation of the ht-U₂Zn₁₇ binary compound

Chem. Met. Alloys 6 (2013) 20-27

https://doi.org/10.30970/cma6.0233

Yu. VERBOVYTSKYY, A.P. GONÇALVES

The high-temperature U₂Zn₁₇ phase (U_1.71(1)Zn₁₇₍₁₎) has been obtained from a sample of nominal composition 10U:90Zn (at.%), prepared by high-temperature (950ºC) synthesis. Its crystal structure was determined from X-ray single crystal diffraction data: space group P6₃/mmc, a = 9.0304(16) Å, c = 8.817(4) Å, V = 622.7(3) ų, R1 = 0.0391, wR2 = 0.0830. The structure is closely related to the Th₂Ni₁₇ and LuFe_9.5 structure types. The analysis of the interatomic distances indicates strong interactions between the Zn atoms.

Unit cells of the Th₂Ni₁₇ and ht-U₂Zn₁₇ structures.

Keywords

Binary phase / Crystal structure / X-ray diffraction