MnPO4 crystallizes in the triclinic P1 space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(6), and one O(8) atom. In the second Mn site, Mn(2) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(7), and one O(8) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(2), one O(3), one O(6), and one O(8) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(1), one O(4), one O(5), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one P(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one P(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one P(1) atom.
MnPO4 crystallizes in the triclinic P1 space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(6), and one O(8) atom. The Mn(1)-O(1) bond length is 1.97 Å. The Mn(1)-O(2) bond length is 1.93 Å. The Mn(1)-O(3) bond length is 2.48 Å. The Mn(1)-O(4) bond length is 1.97 Å. The Mn(1)-O(6) bond length is 1.93 Å. The Mn(1)-O(8) bond length is 2.49 Å. In the second Mn site, Mn(2) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(7), and one O(8) atom. The Mn(2)-O(1) bond length is 2.36 Å. The Mn(2)-O(3) bond length is 1.96 Å. The Mn(2)-O(4) bond length is 2.37 Å. The Mn(2)-O(5) bond length is 1.93 Å. The Mn(2)-O(7) bond length is 1.93 Å. The Mn(2)-O(8) bond length is 1.96 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(2), one O(3), one O(6), and one O(8) atom. The P(1)-O(2) bond length is 1.54 Å. The P(1)-O(3) bond length is 1.56 Å. The P(1)-O(6) bond length is 1.54 Å. The P(1)-O(8) bond length is 1.56 Å. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(1), one O(4), one O(5), and one O(7) atom. The P(2)-O(1) bond length is 1.57 Å. The P(2)-O(4) bond length is 1.57 Å. The P(2)-O(5) bond length is 1.54 Å. The P(2)-O(7) bond length is 1.54 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one P(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one P(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one P(1) atom.