Single crystal investigation of the ht-U2Zn17 binary compound

 

Chem. Met. Alloys 6 (2013) 20-27

 

Yu. VERBOVYTSKYY, A.P. GONÇALVES

 

The high-temperature U2Zn17 phase (U1.71(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) Å3, R1 = 0.0391, wR2 = 0.0830. The structure is closely related to the Th2Ni17 and LuFe9.5 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