Materials Data on TbMgNi by Materials Project
TbNiMg crystallizes in the orthorhombic Cmcm space group. The structure is two-dimensional and consists of two TbNiMg sheets oriented in the (0, 1, 0) direction. Mg is bonded in a distorted single-bond geometry to one Ni atom. The Mg–Ni bond length is 2.81 Å. Tb is bonded in a 6-coordinate geometry to six equivalent Ni atoms. There are four shorter (2.81 Å) and two longer (2.93 Å) Tb–Ni bond lengths. Ni is bonded in a 9-coordinate geometry to one Mg, six equivalent Tb, and two equivalent Ni atoms. Both Ni–Ni bond lengths are 2.49 Å.