Ba2TeO(PO4)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 10-coordinate geometry to one O(2), one O(5), one O(6), one O(8), two equivalent O(1), two equivalent O(4), and two equivalent O(9) atoms. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(4), one O(6), one O(7), one O(9), and two equivalent O(3) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Te(1)O5 square pyramid. In the second P site, P(2) is bonded to one O(3), one O(7), one O(8), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Te(1)O5 square pyramids. Te(1) is bonded to one O(5), one O(7), one O(8), and two equivalent O(2) atoms to form TeO5 square pyramids that share  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one Te(1)O5 square pyramid. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Ba(2), two equivalent Ba(1), and one P(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), and two equivalent Te(1) atoms. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Ba(2) and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Ba(2), two equivalent Ba(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Ba(1), one P(1), and one Te(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Ba(1), one Ba(2), and one P(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Ba(2), one P(2), and one Te(1) atom. In the eighth O site, O(8) is bonded in a 1-coordinate geometry to one Ba(1), one P(2), and one Te(1) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Ba(2), two equivalent Ba(1), and one P(2) atom.
Ba2TeO(PO4)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 10-coordinate geometry to one O(2), one O(5), one O(6), one O(8), two equivalent O(1), two equivalent O(4), and two equivalent O(9) atoms. The Ba(1)-O(2) bond length is 3.09 Å. The Ba(1)-O(5) bond length is 2.96 Å. The Ba(1)-O(6) bond length is 2.82 Å. The Ba(1)-O(8) bond length is 2.87 Å. There is one shorter (2.72 Å) and one longer (2.86 Å) Ba(1)-O(1) bond length. There is one shorter (3.05 Å) and one longer (3.33 Å) Ba(1)-O(4) bond length. There is one shorter (2.69 Å) and one longer (2.94 Å) Ba(1)-O(9) bond length. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(4), one O(6), one O(7), one O(9), and two equivalent O(3) atoms. The Ba(2)-O(1) bond length is 2.82 Å. The Ba(2)-O(2) bond length is 3.02 Å. The Ba(2)-O(4) bond length is 2.84 Å. The Ba(2)-O(6) bond length is 2.72 Å. The Ba(2)-O(7) bond length is 2.91 Å. The Ba(2)-O(9) bond length is 2.98 Å. There is one shorter (2.75 Å) and one longer (2.77 Å) Ba(2)-O(3) bond length. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Te(1)O5 square pyramid. The P(1)-O(1) bond length is 1.56 Å. The P(1)-O(4) bond length is 1.54 Å. The P(1)-O(5) bond length is 1.63 Å. The P(1)-O(6) bond length is 1.54 Å. In the second P site, P(2) is bonded to one O(3), one O(7), one O(8), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Te(1)O5 square pyramids. The P(2)-O(3) bond length is 1.52 Å. The P(2)-O(7) bond length is 1.61 Å. The P(2)-O(8) bond length is 1.57 Å. The P(2)-O(9) bond length is 1.54 Å. Te(1) is bonded to one O(5), one O(7), one O(8), and two equivalent O(2) atoms to form TeO5 square pyramids that share  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one Te(1)O5 square pyramid. The Te(1)-O(5) bond length is 2.07 Å. The Te(1)-O(7) bond length is 2.10 Å. The Te(1)-O(8) bond length is 2.22 Å. There is one shorter (1.94 Å) and one longer (2.18 Å) Te(1)-O(2) bond length. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Ba(2), two equivalent Ba(1), and one P(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), and two equivalent Te(1) atoms. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Ba(2) and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Ba(2), two equivalent Ba(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Ba(1), one P(1), and one Te(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Ba(1), one Ba(2), and one P(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Ba(2), one P(2), and one Te(1) atom. In the eighth O site, O(8) is bonded in a 1-coordinate geometry to one Ba(1), one P(2), and one Te(1) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Ba(2), two equivalent Ba(1), and one P(2) atom.