Tm2TeO6 crystallizes in the orthorhombic P2_12_12_1 space group. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 7-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), and two equivalent O(1) atoms. In the second Tm site, Tm(2) is bonded to one O(2), one O(3), one O(4), two equivalent O(5), and two equivalent O(6) atoms to form distorted TmO7 hexagonal pyramids that share corners with three equivalent Te(1)O6 octahedra, edges with two equivalent Tm(2)O7 hexagonal pyramids, and edges with two equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-46°. Te(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form TeO6 octahedra that share corners with three equivalent Tm(2)O7 hexagonal pyramids and edges with two equivalent Tm(2)O7 hexagonal pyramids. There are six inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to two equivalent Tm(1) and one Te(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Tm(1), one Tm(2), and one Te(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Tm(1), one Tm(2), and one Te(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Tm(1), one Tm(2), and one Te(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Tm(1), two equivalent Tm(2), and one Te(1) atom. In the sixth O site, O(6) is bonded to one Tm(1), two equivalent Tm(2), and one Te(1) atom to form distorted corner-sharing OTm3Te tetrahedra.
Tm2TeO6 crystallizes in the orthorhombic P2_12_12_1 space group. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a 7-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), and two equivalent O(1) atoms. The Tm(1)-O(2) bond length is 2.24 Å. The Tm(1)-O(3) bond length is 2.26 Å. The Tm(1)-O(4) bond length is 2.37 Å. The Tm(1)-O(5) bond length is 2.57 Å. The Tm(1)-O(6) bond length is 2.25 Å. There is one shorter (2.18 Å) and one longer (2.22 Å) Tm(1)-O(1) bond length. In the second Tm site, Tm(2) is bonded to one O(2), one O(3), one O(4), two equivalent O(5), and two equivalent O(6) atoms to form distorted TmO7 hexagonal pyramids that share corners with three equivalent Te(1)O6 octahedra, edges with two equivalent Tm(2)O7 hexagonal pyramids, and edges with two equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-46°. The Tm(2)-O(2) bond length is 2.21 Å. The Tm(2)-O(3) bond length is 2.27 Å. The Tm(2)-O(4) bond length is 2.25 Å. There is one shorter (2.26 Å) and one longer (2.42 Å) Tm(2)-O(5) bond length. There is one shorter (2.32 Å) and one longer (2.45 Å) Tm(2)-O(6) bond length. Te(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form TeO6 octahedra that share corners with three equivalent Tm(2)O7 hexagonal pyramids and edges with two equivalent Tm(2)O7 hexagonal pyramids. The Te(1)-O(1) bond length is 1.91 Å. The Te(1)-O(2) bond length is 1.89 Å. The Te(1)-O(3) bond length is 1.90 Å. The Te(1)-O(4) bond length is 1.93 Å. The Te(1)-O(5) bond length is 1.94 Å. The Te(1)-O(6) bond length is 1.95 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to two equivalent Tm(1) and one Te(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Tm(1), one Tm(2), and one Te(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Tm(1), one Tm(2), and one Te(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Tm(1), one Tm(2), and one Te(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Tm(1), two equivalent Tm(2), and one Te(1) atom. In the sixth O site, O(6) is bonded to one Tm(1), two equivalent Tm(2), and one Te(1) atom to form distorted corner-sharing OTm3Te tetrahedra.