MgMn6(PO4)6 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a distorted pentagonal planar geometry to one O(14), one O(18), one O(2), one O(22), and one O(9) atom. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(10), one O(15), one O(24), and one O(3) atom to form distorted MnO4 trigonal pyramids that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. In the second Mn site, Mn(2) is bonded to one O(1), one O(12), one O(14), and one O(8) atom to form MnO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. In the third Mn site, Mn(3) is bonded to one O(11), one O(16), one O(7), and one O(9) atom to form distorted MnO4 tetrahedra that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. In the fourth Mn site, Mn(4) is bonded to one O(13), one O(21), one O(4), and one O(6) atom to form distorted MnO4 trigonal pyramids that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. In the fifth Mn site, Mn(5) is bonded to one O(20), one O(22), one O(23), and one O(5) atom to form distorted MnO4 trigonal pyramids that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and  a cornercorner with one P(5)O4 tetrahedra. In the sixth Mn site, Mn(6) is bonded in a distorted square co-planar geometry to one O(17), one O(18), one O(19), and one O(2) atom. There are six inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(17), one O(21), and one O(23) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(4)O4 trigonal pyramid, and  a cornercorner with one Mn(5)O4 trigonal pyramid. In the second P site, P(2) is bonded to one O(19), one O(24), one O(5), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(3)O4 tetrahedra,  a cornercorner with one Mn(1)O4 trigonal pyramid, and  a cornercorner with one Mn(5)O4 trigonal pyramid. In the third P site, P(3) is bonded to one O(11), one O(12), one O(15), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra,  a cornercorner with one Mn(1)O4 trigonal pyramid, and  a cornercorner with one Mn(4)O4 trigonal pyramid. In the fourth P site, P(4) is bonded to one O(18), one O(22), one O(4), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(4)O4 trigonal pyramid, and  a cornercorner with one Mn(5)O4 trigonal pyramid. In the fifth P site, P(5) is bonded to one O(16), one O(2), one O(20), and one O(3) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(3)O4 tetrahedra,  a cornercorner with one Mn(1)O4 trigonal pyramid, and  a cornercorner with one Mn(5)O4 trigonal pyramid. In the sixth P site, P(6) is bonded to one O(10), one O(13), one O(14), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra,  a cornercorner with one Mn(1)O4 trigonal pyramid, and  a cornercorner with one Mn(4)O4 trigonal pyramid. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mn(6), and one P(5) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one P(5) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Mn(4) and one P(4) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Mn(5) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Mn(4) and one P(3) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Mn(3) and one P(6) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(4) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Mg(1), one Mn(3), and one P(2) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(6) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Mn(3) and one P(3) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(3) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Mn(4) and one P(6) atom. In the fourteenth O site, O(14) is bonded in a trigonal planar geometry to one Mg(1), one Mn(2), and one P(6) atom. In the fifteenth O site, O(15) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(3) atom. In the sixteenth O site, O(16) is bonded in a bent 150 degrees geometry to one Mn(3) and one P(5) atom. In the seventeenth O site, O(17) is bonded in a bent 120 degrees geometry to one Mn(6) and one P(1) atom. In the eighteenth O site, O(18) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(6), and one P(4) atom. In the nineteenth O site, O(19) is bonded in a bent 150 degrees geometry to one Mn(6) and one P(2) atom. In the twentieth O site, O(20) is bonded in a bent 120 degrees geometry to one Mn(5) and one P(5) atom. In the twenty-first O site, O(21) is bonded in a distorted bent 120 degrees geometry to one Mn(4) and one P(1) atom. In the twenty-second O site, O(22) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(5), and one P(4) atom. In the twenty-third O site, O(23) is bonded in a distorted bent 150 degrees geometry to one Mn(5) and one P(1) atom. In the twenty-fourth O site, O(24) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(2) atom.
MgMn6(PO4)6 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a distorted pentagonal planar geometry to one O(14), one O(18), one O(2), one O(22), and one O(9) atom. The Mg(1)-O(14) bond length is 2.04 Å. The Mg(1)-O(18) bond length is 2.11 Å. The Mg(1)-O(2) bond length is 2.11 Å. The Mg(1)-O(22) bond length is 2.21 Å. The Mg(1)-O(9) bond length is 2.02 Å. There are six inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(10), one O(15), one O(24), and one O(3) atom to form distorted MnO4 trigonal pyramids that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. The Mn(1)-O(10) bond length is 1.93 Å. The Mn(1)-O(15) bond length is 1.88 Å. The Mn(1)-O(24) bond length is 1.92 Å. The Mn(1)-O(3) bond length is 1.90 Å. In the second Mn site, Mn(2) is bonded to one O(1), one O(12), one O(14), and one O(8) atom to form MnO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. The Mn(2)-O(1) bond length is 2.00 Å. The Mn(2)-O(12) bond length is 1.97 Å. The Mn(2)-O(14) bond length is 2.18 Å. The Mn(2)-O(8) bond length is 2.01 Å. In the third Mn site, Mn(3) is bonded to one O(11), one O(16), one O(7), and one O(9) atom to form distorted MnO4 tetrahedra that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. The Mn(3)-O(11) bond length is 2.00 Å. The Mn(3)-O(16) bond length is 2.06 Å. The Mn(3)-O(7) bond length is 2.05 Å. The Mn(3)-O(9) bond length is 2.26 Å. In the fourth Mn site, Mn(4) is bonded to one O(13), one O(21), one O(4), and one O(6) atom to form distorted MnO4 trigonal pyramids that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. The Mn(4)-O(13) bond length is 1.94 Å. The Mn(4)-O(21) bond length is 1.95 Å. The Mn(4)-O(4) bond length is 1.91 Å. The Mn(4)-O(6) bond length is 1.89 Å. In the fifth Mn site, Mn(5) is bonded to one O(20), one O(22), one O(23), and one O(5) atom to form distorted MnO4 trigonal pyramids that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and  a cornercorner with one P(5)O4 tetrahedra. The Mn(5)-O(20) bond length is 1.92 Å. The Mn(5)-O(22) bond length is 1.96 Å. The Mn(5)-O(23) bond length is 1.90 Å. The Mn(5)-O(5) bond length is 1.89 Å. In the sixth Mn site, Mn(6) is bonded in a distorted square co-planar geometry to one O(17), one O(18), one O(19), and one O(2) atom. The Mn(6)-O(17) bond length is 1.92 Å. The Mn(6)-O(18) bond length is 2.01 Å. The Mn(6)-O(19) bond length is 1.91 Å. The Mn(6)-O(2) bond length is 2.02 Å. There are six inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(17), one O(21), and one O(23) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(4)O4 trigonal pyramid, and  a cornercorner with one Mn(5)O4 trigonal pyramid. The P(1)-O(1) bond length is 1.52 Å. The P(1)-O(17) bond length is 1.57 Å. The P(1)-O(21) bond length is 1.56 Å. The P(1)-O(23) bond length is 1.57 Å. In the second P site, P(2) is bonded to one O(19), one O(24), one O(5), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(3)O4 tetrahedra,  a cornercorner with one Mn(1)O4 trigonal pyramid, and  a cornercorner with one Mn(5)O4 trigonal pyramid. The P(2)-O(19) bond length is 1.54 Å. The P(2)-O(24) bond length is 1.53 Å. The P(2)-O(5) bond length is 1.55 Å. The P(2)-O(9) bond length is 1.57 Å. In the third P site, P(3) is bonded to one O(11), one O(12), one O(15), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra,  a cornercorner with one Mn(1)O4 trigonal pyramid, and  a cornercorner with one Mn(4)O4 trigonal pyramid. The P(3)-O(11) bond length is 1.53 Å. The P(3)-O(12) bond length is 1.53 Å. The P(3)-O(15) bond length is 1.56 Å. The P(3)-O(6) bond length is 1.56 Å. In the fourth P site, P(4) is bonded to one O(18), one O(22), one O(4), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(4)O4 trigonal pyramid, and  a cornercorner with one Mn(5)O4 trigonal pyramid. The P(4)-O(18) bond length is 1.58 Å. The P(4)-O(22) bond length is 1.59 Å. The P(4)-O(4) bond length is 1.54 Å. The P(4)-O(8) bond length is 1.50 Å. In the fifth P site, P(5) is bonded to one O(16), one O(2), one O(20), and one O(3) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(3)O4 tetrahedra,  a cornercorner with one Mn(1)O4 trigonal pyramid, and  a cornercorner with one Mn(5)O4 trigonal pyramid. The P(5)-O(16) bond length is 1.52 Å. The P(5)-O(2) bond length is 1.58 Å. The P(5)-O(20) bond length is 1.56 Å. The P(5)-O(3) bond length is 1.56 Å. In the sixth P site, P(6) is bonded to one O(10), one O(13), one O(14), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra,  a cornercorner with one Mn(1)O4 trigonal pyramid, and  a cornercorner with one Mn(4)O4 trigonal pyramid. The P(6)-O(10) bond length is 1.56 Å. The P(6)-O(13) bond length is 1.57 Å. The P(6)-O(14) bond length is 1.58 Å. The P(6)-O(7) bond length is 1.53 Å. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mn(6), and one P(5) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one P(5) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Mn(4) and one P(4) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Mn(5) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Mn(4) and one P(3) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Mn(3) and one P(6) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(4) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Mg(1), one Mn(3), and one P(2) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(6) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Mn(3) and one P(3) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(3) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Mn(4) and one P(6) atom. In the fourteenth O site, O(14) is bonded in a trigonal planar geometry to one Mg(1), one Mn(2), and one P(6) atom. In the fifteenth O site, O(15) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(3) atom. In the sixteenth O site, O(16) is bonded in a bent 150 degrees geometry to one Mn(3) and one P(5) atom. In the seventeenth O site, O(17) is bonded in a bent 120 degrees geometry to one Mn(6) and one P(1) atom. In the eighteenth O site, O(18) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(6), and one P(4) atom. In the nineteenth O site, O(19) is bonded in a bent 150 degrees geometry to one Mn(6) and one P(2) atom. In the twentieth O site, O(20) is bonded in a bent 120 degrees geometry to one Mn(5) and one P(5) atom. In the twenty-first O site, O(21) is bonded in a distorted bent 120 degrees geometry to one Mn(4) and one P(1) atom. In the twenty-second O site, O(22) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(5), and one P(4) atom. In the twenty-third O site, O(23) is bonded in a distorted bent 150 degrees geometry to one Mn(5) and one P(1) atom. In the twenty-fourth O site, O(24) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(2) atom.