Li2VP4(HO2)8 crystallizes in the triclinic P-1 space group. Li(1) is bonded in a 4-coordinate geometry to one O(3), one O(5), one O(6), and one O(8) atom. V(1) is bonded to two equivalent O(5), two equivalent O(6), and two equivalent O(8) atoms to form VO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(5), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one V(1)O6 octahedra and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 54°. In the second P site, P(2) is bonded to one O(3), one O(4), one O(6), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one V(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 53°. There are four inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(1) and one O(3) atom. In the second H site, H(2) is bonded in a linear geometry to one O(2) and one O(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(8) atom. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one O(1) and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one P(1), one H(1), and one H(4) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(1) and one H(2) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Li(1), one P(2), and one H(1) atom. In the fourth O site, O(4) is bonded in a water-like geometry to one P(2) and one H(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Li(1), one V(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Li(1), one V(1), and one P(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted water-like geometry to one Li(1), one V(1), one H(3), and one H(4) atom.
Li2VP4(HO2)8 crystallizes in the triclinic P-1 space group. Li(1) is bonded in a 4-coordinate geometry to one O(3), one O(5), one O(6), and one O(8) atom. The Li(1)-O(3) bond length is 2.55 Å. The Li(1)-O(5) bond length is 2.05 Å. The Li(1)-O(6) bond length is 2.57 Å. The Li(1)-O(8) bond length is 2.26 Å. V(1) is bonded to two equivalent O(5), two equivalent O(6), and two equivalent O(8) atoms to form VO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. Both V(1)-O(5) bond lengths are 2.18 Å. Both V(1)-O(6) bond lengths are 2.17 Å. Both V(1)-O(8) bond lengths are 2.17 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(5), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one V(1)O6 octahedra and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 54°. The P(1)-O(1) bond length is 1.52 Å. The P(1)-O(2) bond length is 1.57 Å. The P(1)-O(5) bond length is 1.52 Å. The P(1)-O(7) bond length is 1.61 Å. In the second P site, P(2) is bonded to one O(3), one O(4), one O(6), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one V(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 53°. The P(2)-O(3) bond length is 1.57 Å. The P(2)-O(4) bond length is 1.53 Å. The P(2)-O(6) bond length is 1.52 Å. The P(2)-O(7) bond length is 1.62 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(1) and one O(3) atom. The H(1)-O(1) bond length is 1.41 Å. The H(1)-O(3) bond length is 1.06 Å. In the second H site, H(2) is bonded in a linear geometry to one O(2) and one O(4) atom. The H(2)-O(2) bond length is 1.06 Å. The H(2)-O(4) bond length is 1.44 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(8) atom. The H(3)-O(8) bond length is 1.00 Å. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one O(1) and one O(8) atom. The H(4)-O(1) bond length is 1.65 Å. The H(4)-O(8) bond length is 1.01 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one P(1), one H(1), and one H(4) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(1) and one H(2) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Li(1), one P(2), and one H(1) atom. In the fourth O site, O(4) is bonded in a water-like geometry to one P(2) and one H(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Li(1), one V(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Li(1), one V(1), and one P(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted water-like geometry to one Li(1), one V(1), one H(3), and one H(4) atom.