Crystal structure and magnetism of YPt2B

The new ternary YPt2B compound was synthesized by arc-melting, followed by annealing at 1370 K. The structure was refined down to R = 0.0408, wR2 = 0.0692 from single crystal X-ray diffraction data (CAD-4 diffractometer, Mo Kα, 269 reflections with I > 2σ(Io)) and to RF = 0.0539, RB = 0.0970 from X-ray powder diffraction for 77 reflections. YPt2B was found to crystallize with a CePt2B structure type, P6222 space group (no. 180) (a = 5.2977(1) Å, c = 7.8875(2) Å, Z = 3, V = 191.715(8) Å3, ρ = 12.752 g cm−3). Magnetization and AC-susceptibility measurements indicate that there is no magnetic or superconducting transition in YPt2B down to 2 K.