Tm3Ni11Ge4 crystallizes in the hexagonal P6_3/mmc space group. Tm(1) is bonded in a 15-coordinate geometry to two equivalent Ni(2), two equivalent Ni(3), six equivalent Ni(1), one Ge(2), and four equivalent Ge(1) atoms. There are three inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 12-coordinate geometry to three equivalent Tm(1), one Ni(3), two equivalent Ni(2), three equivalent Ni(1), one Ge(2), and two equivalent Ge(1) atoms. In the second Ni site, Ni(2) is bonded in a 12-coordinate geometry to two equivalent Tm(1), two equivalent Ni(2), two equivalent Ni(3), four equivalent Ni(1), and two equivalent Ge(1) atoms. In the third Ni site, Ni(3) is bonded in a 12-coordinate geometry to three equivalent Tm(1), three equivalent Ni(1), three equivalent Ni(2), and three equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(2) is bonded in a distorted q6 geometry to three equivalent Tm(1) and six equivalent Ni(1) atoms. In the second Ge site, Ge(1) is bonded to four equivalent Tm(1), two equivalent Ni(2), two equivalent Ni(3), and four equivalent Ni(1) atoms to form a mixture of distorted corner and face-sharing GeTm4Ni8 cuboctahedra.
Tm3Ni11Ge4 crystallizes in the hexagonal P6_3/mmc space group. Tm(1) is bonded in a 15-coordinate geometry to two equivalent Ni(2), two equivalent Ni(3), six equivalent Ni(1), one Ge(2), and four equivalent Ge(1) atoms. Both Tm(1)-Ni(2) bond lengths are 2.89 Å. Both Tm(1)-Ni(3) bond lengths are 2.92 Å. There are four shorter (2.89 Å) and two longer (3.00 Å) Tm(1)-Ni(1) bond lengths. The Tm(1)-Ge(2) bond length is 2.80 Å. All Tm(1)-Ge(1) bond lengths are 3.07 Å. There are three inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 12-coordinate geometry to three equivalent Tm(1), one Ni(3), two equivalent Ni(2), three equivalent Ni(1), one Ge(2), and two equivalent Ge(1) atoms. The Ni(1)-Ni(3) bond length is 2.66 Å. Both Ni(1)-Ni(2) bond lengths are 2.57 Å. There is one shorter (2.64 Å) and two longer (2.77 Å) Ni(1)-Ni(1) bond lengths. The Ni(1)-Ge(2) bond length is 2.60 Å. Both Ni(1)-Ge(1) bond lengths are 2.59 Å. In the second Ni site, Ni(2) is bonded in a 12-coordinate geometry to two equivalent Tm(1), two equivalent Ni(2), two equivalent Ni(3), four equivalent Ni(1), and two equivalent Ge(1) atoms. Both Ni(2)-Ni(2) bond lengths are 2.52 Å. Both Ni(2)-Ni(3) bond lengths are 2.57 Å. Both Ni(2)-Ge(1) bond lengths are 2.33 Å. In the third Ni site, Ni(3) is bonded in a 12-coordinate geometry to three equivalent Tm(1), three equivalent Ni(1), three equivalent Ni(2), and three equivalent Ge(1) atoms. All Ni(3)-Ge(1) bond lengths are 2.39 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(2) is bonded in a distorted q6 geometry to three equivalent Tm(1) and six equivalent Ni(1) atoms. In the second Ge site, Ge(1) is bonded to four equivalent Tm(1), two equivalent Ni(2), two equivalent Ni(3), and four equivalent Ni(1) atoms to form a mixture of distorted corner and face-sharing GeTm4Ni8 cuboctahedra.