Materials Data on Tb(CoGe)2 by Materials Project
TbCo2Ge2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Tb is bonded in a 8-coordinate geometry to eight equivalent Co and eight equivalent Ge atoms. All Tb–Co bond lengths are 3.22 Å. All Tb–Ge bond lengths are 3.09 Å. Co is bonded to four equivalent Tb and four equivalent Ge atoms to form a mixture of distorted edge, face, and corner-sharing CoTb4Ge4 tetrahedra. All Co–Ge bond lengths are 2.34 Å. Ge is bonded in a 9-coordinate geometry to four equivalent Tb, four equivalent Co, and one Ge atom. The Ge–Ge bond length is 2.60 Å.