Tl2Te(PO7)2 crystallizes in the monoclinic P2_1/c space group. Tl(1) is bonded to one O(1), one O(2), one O(5), one O(6), and one O(7) atom to form distorted TlO5 trigonal bipyramids that share corners with two equivalent Te(1)O6 octahedra and corners with three equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-51°. P(1) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with three equivalent Tl(1)O5 trigonal bipyramids. Te(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form TeO6 octahedra that share corners with four equivalent Tl(1)O5 trigonal bipyramids. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a 2-coordinate geometry to one Tl(1) and one P(1) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one Tl(1) and one Te(1) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to one Tl(1) and one Te(1) atom. In the fourth O site, O(3) is bonded in a bent 120 degrees geometry to one Te(1) and one O(4) atom. In the fifth O site, O(4) is bonded in a distorted water-like geometry to one P(1) and one O(3) atom. In the sixth O site, O(5) is bonded in a distorted linear geometry to one Tl(1) and one P(1) atom. In the seventh O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Tl(1) and one P(1) atom.
Tl2Te(PO7)2 crystallizes in the monoclinic P2_1/c space group. Tl(1) is bonded to one O(1), one O(2), one O(5), one O(6), and one O(7) atom to form distorted TlO5 trigonal bipyramids that share corners with two equivalent Te(1)O6 octahedra and corners with three equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-51°. The Tl(1)-O(1) bond length is 2.19 Å. The Tl(1)-O(2) bond length is 2.20 Å. The Tl(1)-O(5) bond length is 2.23 Å. The Tl(1)-O(6) bond length is 2.26 Å. The Tl(1)-O(7) bond length is 2.27 Å. P(1) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with three equivalent Tl(1)O5 trigonal bipyramids. The P(1)-O(4) bond length is 1.79 Å. The P(1)-O(5) bond length is 1.50 Å. The P(1)-O(6) bond length is 1.52 Å. The P(1)-O(7) bond length is 1.52 Å. Te(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form TeO6 octahedra that share corners with four equivalent Tl(1)O5 trigonal bipyramids. Both Te(1)-O(1) bond lengths are 1.90 Å. Both Te(1)-O(2) bond lengths are 1.91 Å. Both Te(1)-O(3) bond lengths are 2.21 Å. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a 2-coordinate geometry to one Tl(1) and one P(1) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one Tl(1) and one Te(1) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to one Tl(1) and one Te(1) atom. In the fourth O site, O(3) is bonded in a bent 120 degrees geometry to one Te(1) and one O(4) atom. The O(3)-O(4) bond length is 1.35 Å. In the fifth O site, O(4) is bonded in a distorted water-like geometry to one P(1) and one O(3) atom. In the sixth O site, O(5) is bonded in a distorted linear geometry to one Tl(1) and one P(1) atom. In the seventh O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Tl(1) and one P(1) atom.