Tm5(PtIn2)2 crystallizes in the orthorhombic Pbam space group. There are three inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 2-coordinate geometry to two equivalent Pt(1), two equivalent In(1), and four equivalent In(2) atoms. In the second Tm site, Tm(2) is bonded in a 4-coordinate geometry to four equivalent Pt(1), two equivalent In(2), and four equivalent In(1) atoms. In the third Tm site, Tm(3) is bonded in a distorted body-centered cubic geometry to four equivalent In(1) and four equivalent In(2) atoms. Pt(1) is bonded in a 9-coordinate geometry to two equivalent Tm(1), four equivalent Tm(2), one In(2), and two equivalent In(1) atoms. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 10-coordinate geometry to two equivalent Tm(1), two equivalent Tm(3), four equivalent Tm(2), and two equivalent Pt(1) atoms. In the second In site, In(2) is bonded in a 9-coordinate geometry to two equivalent Tm(2), two equivalent Tm(3), four equivalent Tm(1), and one Pt(1) atom.
Tm5(PtIn2)2 crystallizes in the orthorhombic Pbam space group. There are three inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 2-coordinate geometry to two equivalent Pt(1), two equivalent In(1), and four equivalent In(2) atoms. Both Tm(1)-Pt(1) bond lengths are 2.78 Å. Both Tm(1)-In(1) bond lengths are 3.25 Å. There are two shorter (3.17 Å) and two longer (3.34 Å) Tm(1)-In(2) bond lengths. In the second Tm site, Tm(2) is bonded in a 4-coordinate geometry to four equivalent Pt(1), two equivalent In(2), and four equivalent In(1) atoms. There are two shorter (2.90 Å) and two longer (2.92 Å) Tm(2)-Pt(1) bond lengths. Both Tm(2)-In(2) bond lengths are 3.30 Å. There are two shorter (3.29 Å) and two longer (3.38 Å) Tm(2)-In(1) bond lengths. In the third Tm site, Tm(3) is bonded in a distorted body-centered cubic geometry to four equivalent In(1) and four equivalent In(2) atoms. All Tm(3)-In(1) bond lengths are 3.26 Å. All Tm(3)-In(2) bond lengths are 3.17 Å. Pt(1) is bonded in a 9-coordinate geometry to two equivalent Tm(1), four equivalent Tm(2), one In(2), and two equivalent In(1) atoms. The Pt(1)-In(2) bond length is 3.00 Å. There is one shorter (2.92 Å) and one longer (3.28 Å) Pt(1)-In(1) bond length. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 10-coordinate geometry to two equivalent Tm(1), two equivalent Tm(3), four equivalent Tm(2), and two equivalent Pt(1) atoms. In the second In site, In(2) is bonded in a 9-coordinate geometry to two equivalent Tm(2), two equivalent Tm(3), four equivalent Tm(1), and one Pt(1) atom.