Materials Data on Tm(Fe2Ge)2 by Materials Project
TmFe4Ge2 crystallizes in the tetragonal P4_2/mnm space group. The structure is three-dimensional. Tm is bonded to six equivalent Ge atoms to form a mixture of distorted edge and corner-sharing TmGe6 octahedra. The corner-sharing octahedral tilt angles are 41°. There are two shorter (2.91 Å) and four longer (2.94 Å) Tm–Ge bond lengths. Fe is bonded in a 3-coordinate geometry to three equivalent Ge atoms. There are one shorter (2.43 Å) and two longer (2.44 Å) Fe–Ge bond lengths. Ge is bonded in a 9-coordinate geometry to three equivalent Tm and six equivalent Fe atoms.