Powder diffraction data of the Ho_2AlGe_3 ternary compound

摘要

A new ternary compound Ho_2AlGe_3 was synthesized and studied by means of X-ray powder diffraction technique. The powder pattern of Ho_2AlGe_3 was indexed and refined, giving an orthorhombic structure, space group Pnma (No. 62) with the Y_2AlGe_3 structure type: a = 6.743 98(8) A, b = 4.163 73(5) A, c= 17.5834(2) A. V=493.74 A~3. Z = 4. ρ_x = 7.73 g cm~(-3). F_(30)= 202.7 (0.004. 37), and RIR=1.21.