DOE OSTI2020
Er7(RhTe)2 crystallizes in the orthorhombic Imm2 space group. The structure is three-dimensional. there are four inequivalent Er sites. In the first Er site, Er is bonded in a 5-coordinate geometry to two equivalent Rh and three Te atoms. Both Er–Rh bond lengths are 2.83 Å. There are one shorter (3.11 Å) and two longer (3.17 Å) Er–Te bond lengths. In the second Er site, Er is bonded in a 4-coordinate geometry to three equivalent Rh and one Te atom. There are two shorter (2.82 Å) and one longer (3.13 Å) Er–Rh bond lengths. The Er–Te bond length is 3.17 Å. In the third Er site, Er is bonded in a 4-coordinate geometry to two equivalent Rh and two equivalent Te atoms. Both Er–Rh bond lengths are 2.86 Å. Both Er–Te bond lengths are 3.16 Å. In the fourth Er site, Er is bonded in a 3-coordinate geometry to three Te atoms. There are two shorter (3.17 Å) and one longer (3.20 Å) Er–Te bond lengths. Rh is bonded in a 7-coordinate geometry to seven Er atoms. There are two inequivalent Te sites. In the first Te site, Te is bonded in a 8-coordinate geometry to eight Er atoms. In the second Te site, Te is bonded in a 7-coordinate geometry to seven Er atoms.