Single Crystal Investigation of Sm2(Ru,Os)3Si5.

Abstract The crystal structure of Sm 2 (Ru,Os) 3 Si 5 was refined from single crystal diffraction ( P4/mnc space group, a =10.730(5) A, c =5.707(3) A) to R =0.0635 for 456 reflections with F o >4 σ ( F o ). The compound belongs to the U 2 Mn 3 Si 5 -type structure.