Tb2PtCu crystallizes in the orthorhombic Pmc2_1 space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 7-coordinate geometry to three equivalent Pt(1) and four equivalent Cu(1) atoms. In the second Tb site, Tb(2) is bonded in a 7-coordinate geometry to four equivalent Pt(1) and three equivalent Cu(1) atoms. Pt(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1), four equivalent Tb(2), and two equivalent Cu(1) atoms. Cu(1) is bonded in a 9-coordinate geometry to three equivalent Tb(2), four equivalent Tb(1), and two equivalent Pt(1) atoms.
Tb2PtCu crystallizes in the orthorhombic Pmc2_1 space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 7-coordinate geometry to three equivalent Pt(1) and four equivalent Cu(1) atoms. There is one shorter (2.91 Å) and two longer (2.95 Å) Tb(1)-Pt(1) bond lengths. There are two shorter (2.98 Å) and two longer (3.00 Å) Tb(1)-Cu(1) bond lengths. In the second Tb site, Tb(2) is bonded in a 7-coordinate geometry to four equivalent Pt(1) and three equivalent Cu(1) atoms. There are two shorter (2.98 Å) and two longer (2.99 Å) Tb(2)-Pt(1) bond lengths. There is one shorter (2.93 Å) and two longer (2.96 Å) Tb(2)-Cu(1) bond lengths. Pt(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1), four equivalent Tb(2), and two equivalent Cu(1) atoms. Both Pt(1)-Cu(1) bond lengths are 2.73 Å. Cu(1) is bonded in a 9-coordinate geometry to three equivalent Tb(2), four equivalent Tb(1), and two equivalent Pt(1) atoms.