TmMn6Sn5In crystallizes in the hexagonal P-6m2 space group. Tm(1) is bonded to two equivalent Sn(3), three equivalent Sn(1), and three equivalent Sn(2) atoms to form edge-sharing TmSn8 hexagonal bipyramids. Mn(1) is bonded in a 6-coordinate geometry to one In(1), one Sn(1), one Sn(2), one Sn(4), and two equivalent Sn(3) atoms. In(1) is bonded in a 9-coordinate geometry to six equivalent Mn(1) and three equivalent Sn(4) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to three equivalent Tm(1) and six equivalent Mn(1) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to three equivalent Tm(1) and six equivalent Mn(1) atoms. In the third Sn site, Sn(3) is bonded in a 7-coordinate geometry to one Tm(1) and six equivalent Mn(1) atoms. In the fourth Sn site, Sn(4) is bonded in a 9-coordinate geometry to six equivalent Mn(1) and three equivalent In(1) atoms.
TmMn6Sn5In crystallizes in the hexagonal P-6m2 space group. Tm(1) is bonded to two equivalent Sn(3), three equivalent Sn(1), and three equivalent Sn(2) atoms to form edge-sharing TmSn8 hexagonal bipyramids. Both Tm(1)-Sn(3) bond lengths are 3.01 Å. All Tm(1)-Sn(1) bond lengths are 3.12 Å. All Tm(1)-Sn(2) bond lengths are 3.12 Å. Mn(1) is bonded in a 6-coordinate geometry to one In(1), one Sn(1), one Sn(2), one Sn(4), and two equivalent Sn(3) atoms. The Mn(1)-In(1) bond length is 2.78 Å. The Mn(1)-Sn(1) bond length is 2.71 Å. The Mn(1)-Sn(2) bond length is 2.72 Å. The Mn(1)-Sn(4) bond length is 2.77 Å. Both Mn(1)-Sn(3) bond lengths are 2.82 Å. In(1) is bonded in a 9-coordinate geometry to six equivalent Mn(1) and three equivalent Sn(4) atoms. All In(1)-Sn(4) bond lengths are 3.12 Å. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to three equivalent Tm(1) and six equivalent Mn(1) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to three equivalent Tm(1) and six equivalent Mn(1) atoms. In the third Sn site, Sn(3) is bonded in a 7-coordinate geometry to one Tm(1) and six equivalent Mn(1) atoms. In the fourth Sn site, Sn(4) is bonded in a 9-coordinate geometry to six equivalent Mn(1) and three equivalent In(1) atoms.