LiNiPO4 crystallizes in the triclinic P-1 space group. Li(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Ni(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(4) atom. P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Ni(1) and one P(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Li(1), one Ni(1), and one P(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Li(1), one Ni(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Li(1), one Ni(1), and one P(1) atom.
LiNiPO4 crystallizes in the triclinic P-1 space group. Li(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There is one shorter (2.06 Å) and one longer (2.45 Å) Li(1)-O(2) bond length. There is one shorter (2.06 Å) and one longer (2.45 Å) Li(1)-O(3) bond length. There is one shorter (2.06 Å) and one longer (2.45 Å) Li(1)-O(4) bond length. Ni(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(4) atom. The Ni(1)-O(1) bond length is 1.90 Å. The Ni(1)-O(2) bond length is 2.00 Å. The Ni(1)-O(3) bond length is 2.00 Å. The Ni(1)-O(4) bond length is 2.00 Å. P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. The P(1)-O(1) bond length is 1.54 Å. The P(1)-O(2) bond length is 1.56 Å. The P(1)-O(3) bond length is 1.56 Å. The P(1)-O(4) bond length is 1.56 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Ni(1) and one P(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Li(1), one Ni(1), and one P(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Li(1), one Ni(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Li(1), one Ni(1), and one P(1) atom.