Ba(PO3)2 crystallizes in the orthorhombic P2_12_12_1 space group. Ba(1) is bonded in a 10-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), two equivalent O(6), and three 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(2), one O(4), and one O(5) atom to form corner-sharing PO4 tetrahedra. In the second P site, P(2) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form corner-sharing PO4 tetrahedra. There are six inequivalent O sites. In the first O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one P(2) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one P(1) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one P(1) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to three equivalent Ba(1) and one P(2) atom. In the fifth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Ba(1), one P(1), and one P(2) atom. In the sixth O site, O(5) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom.
Ba(PO3)2 crystallizes in the orthorhombic P2_12_12_1 space group. Ba(1) is bonded in a 10-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), two equivalent O(6), and three equivalent O(3) atoms. The Ba(1)-O(4) bond length is 2.97 Å. There is one shorter (2.82 Å) and one longer (2.95 Å) Ba(1)-O(1) bond length. There is one shorter (2.78 Å) and one longer (2.86 Å) Ba(1)-O(2) bond length. There is one shorter (2.79 Å) and one longer (2.90 Å) Ba(1)-O(6) bond length. There are a spread of Ba(1)-O(3) bond distances ranging from 2.86-3.15 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form corner-sharing PO4 tetrahedra. The P(1)-O(1) bond length is 1.48 Å. The P(1)-O(2) bond length is 1.48 Å. The P(1)-O(4) bond length is 1.63 Å. The P(1)-O(5) bond length is 1.60 Å. In the second P site, P(2) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form corner-sharing PO4 tetrahedra. The P(2)-O(3) bond length is 1.49 Å. The P(2)-O(4) bond length is 1.61 Å. The P(2)-O(5) bond length is 1.61 Å. The P(2)-O(6) bond length is 1.48 Å. There are six inequivalent O sites. In the first O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one P(2) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one P(1) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one P(1) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to three equivalent Ba(1) and one P(2) atom. In the fifth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Ba(1), one P(1), and one P(2) atom. In the sixth O site, O(5) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom.