Mo2P3O14 crystallizes in the triclinic P1 space group. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(11), one O(3), one O(5), one O(7), and one O(9) atom to form MoO6 octahedra that share  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. In the second Mo site, Mo(2) is bonded to one O(10), one O(12), one O(2), one O(4), one O(6), and one O(8) atom to form distorted MoO6 octahedra that share  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(11), one O(12), and one O(2) atom to form PO4 tetrahedra that share corners with two equivalent Mo(1)O6 octahedra and corners with two equivalent Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-44°. In the second P site, P(2) is bonded to one O(3), one O(4), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Mo(1)O6 octahedra and corners with two equivalent Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-44°. In the third P site, P(3) is bonded to one O(13), one O(14), one O(5), and one O(6) atom to form distorted PO4 tetrahedra that share  a cornercorner with one Mo(1)O6 octahedra and  a cornercorner with one Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-41°. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Mo(2) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Mo(2) and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one P(3) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(3) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Mo(2) and one P(2) atom. In the ninth O site, O(9) is bonded in a single-bond geometry to one Mo(1) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one Mo(2) atom. In the eleventh O site, O(11) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the twelfth O site, O(12) is bonded in a distorted bent 150 degrees geometry to one Mo(2) and one P(1) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one P(3) atom. In the fourteenth O site, O(14) is bonded in a distorted single-bond geometry to one P(3) atom.
Mo2P3O14 crystallizes in the triclinic P1 space group. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(11), one O(3), one O(5), one O(7), and one O(9) atom to form MoO6 octahedra that share  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. The Mo(1)-O(1) bond length is 1.98 Å. The Mo(1)-O(11) bond length is 2.02 Å. The Mo(1)-O(3) bond length is 2.00 Å. The Mo(1)-O(5) bond length is 2.15 Å. The Mo(1)-O(7) bond length is 2.01 Å. The Mo(1)-O(9) bond length is 1.70 Å. In the second Mo site, Mo(2) is bonded to one O(10), one O(12), one O(2), one O(4), one O(6), and one O(8) atom to form distorted MoO6 octahedra that share  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. The Mo(2)-O(10) bond length is 1.70 Å. The Mo(2)-O(12) bond length is 2.05 Å. The Mo(2)-O(2) bond length is 2.04 Å. The Mo(2)-O(4) bond length is 2.05 Å. The Mo(2)-O(6) bond length is 2.21 Å. The Mo(2)-O(8) bond length is 2.04 Å. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(11), one O(12), and one O(2) atom to form PO4 tetrahedra that share corners with two equivalent Mo(1)O6 octahedra and corners with two equivalent Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-44°. The P(1)-O(1) bond length is 1.58 Å. The P(1)-O(11) bond length is 1.56 Å. The P(1)-O(12) bond length is 1.52 Å. The P(1)-O(2) bond length is 1.53 Å. In the second P site, P(2) is bonded to one O(3), one O(4), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Mo(1)O6 octahedra and corners with two equivalent Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-44°. The P(2)-O(3) bond length is 1.58 Å. The P(2)-O(4) bond length is 1.52 Å. The P(2)-O(7) bond length is 1.57 Å. The P(2)-O(8) bond length is 1.52 Å. In the third P site, P(3) is bonded to one O(13), one O(14), one O(5), and one O(6) atom to form distorted PO4 tetrahedra that share  a cornercorner with one Mo(1)O6 octahedra and  a cornercorner with one Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-41°. The P(3)-O(13) bond length is 1.60 Å. The P(3)-O(14) bond length is 1.60 Å. The P(3)-O(5) bond length is 1.51 Å. The P(3)-O(6) bond length is 1.49 Å. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Mo(2) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Mo(2) and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one P(3) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(3) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Mo(2) and one P(2) atom. In the ninth O site, O(9) is bonded in a single-bond geometry to one Mo(1) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one Mo(2) atom. In the eleventh O site, O(11) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the twelfth O site, O(12) is bonded in a distorted bent 150 degrees geometry to one Mo(2) and one P(1) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one P(3) atom. In the fourteenth O site, O(14) is bonded in a distorted single-bond geometry to one P(3) atom.