TbPtGe2 crystallizes in the orthorhombic Immm space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 14-coordinate geometry to six equivalent Pt(1), two equivalent Ge(2), and six equivalent Ge(1) atoms. In the second Tb site, Tb(2) is bonded in a 14-coordinate geometry to four equivalent Pt(1), two equivalent Ge(1), four equivalent Ge(2), and four equivalent Ge(3) atoms. Pt(1) is bonded in a 10-coordinate geometry to two equivalent Tb(2), three equivalent Tb(1), one Ge(2), one Ge(3), and three equivalent Ge(1) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to one Tb(2), three equivalent Tb(1), three equivalent Pt(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Tb(1), four equivalent Tb(2), two equivalent Pt(1), and one Ge(2) atom. In the third Ge site, Ge(3) is bonded in a 7-coordinate geometry to four equivalent Tb(2), two equivalent Pt(1), and one Ge(3) atom.
TbPtGe2 crystallizes in the orthorhombic Immm space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 14-coordinate geometry to six equivalent Pt(1), two equivalent Ge(2), and six equivalent Ge(1) atoms. There are four shorter (3.21 Å) and two longer (3.26 Å) Tb(1)-Pt(1) bond lengths. Both Tb(1)-Ge(2) bond lengths are 3.01 Å. There are four shorter (3.01 Å) and two longer (3.04 Å) Tb(1)-Ge(1) bond lengths. In the second Tb site, Tb(2) is bonded in a 14-coordinate geometry to four equivalent Pt(1), two equivalent Ge(1), four equivalent Ge(2), and four equivalent Ge(3) atoms. All Tb(2)-Pt(1) bond lengths are 3.26 Å. Both Tb(2)-Ge(1) bond lengths are 3.41 Å. All Tb(2)-Ge(2) bond lengths are 3.22 Å. All Tb(2)-Ge(3) bond lengths are 3.39 Å. Pt(1) is bonded in a 10-coordinate geometry to two equivalent Tb(2), three equivalent Tb(1), one Ge(2), one Ge(3), and three equivalent Ge(1) atoms. The Pt(1)-Ge(2) bond length is 2.51 Å. The Pt(1)-Ge(3) bond length is 2.48 Å. There are two shorter (2.48 Å) and one longer (2.63 Å) Pt(1)-Ge(1) bond length. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to one Tb(2), three equivalent Tb(1), three equivalent Pt(1), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 2.63 Å. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Tb(1), four equivalent Tb(2), two equivalent Pt(1), and one Ge(2) atom. The Ge(2)-Ge(2) bond length is 2.43 Å. In the third Ge site, Ge(3) is bonded in a 7-coordinate geometry to four equivalent Tb(2), two equivalent Pt(1), and one Ge(3) atom. The Ge(3)-Ge(3) bond length is 2.38 Å.