Ag2FeMn2(PO4)3 crystallizes in the monoclinic C2 space group. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(7) atoms to form distorted MnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, and edges with two equivalent Mn(3)O6 octahedra. In the second Mn site, Mn(2) is bonded to two equivalent O(4), two equivalent O(6), and two equivalent O(8) atoms to form distorted MnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and edges with two equivalent Fe(1)O6 octahedra. In the third Mn site, Mn(3) is bonded to one O(1), one O(11), one O(2), one O(3), one O(5), and one O(9) atom to form distorted MnO6 octahedra that share  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  an edgeedge with one Mn(1)O6 octahedra, and  an edgeedge with one Fe(1)O6 octahedra. Fe(1) is bonded to one O(1), one O(10), one O(12), one O(2), one O(4), and one O(6) atom to form FeO6 octahedra that share  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  an edgeedge with one Mn(2)O6 octahedra, and  an edgeedge with one Mn(3)O6 octahedra. There are three inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 6-coordinate geometry to one O(11), one O(12), two equivalent O(7), and two equivalent O(8) atoms. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to two equivalent O(10) and two equivalent O(9) atoms. In the third Ag site, Ag(3) is bonded in a 4-coordinate geometry to two equivalent O(10) and two equivalent O(9) atoms. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(4), one O(7), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, and corners with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-62°. In the second P site, P(2) is bonded to one O(10), one O(2), one O(3), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, and corners with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-61°. In the third P site, P(3) is bonded to two equivalent O(11) and two equivalent O(6) atoms to form PO4 tetrahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, and corners with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-66°. In the fourth P site, P(4) is bonded to two equivalent O(12) and two equivalent O(5) atoms to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, and corners with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-59°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mn(3), one Fe(1), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mn(3), one Fe(1), and one P(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(3), and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mn(2), one Fe(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(3), and one P(4) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Mn(2), one Fe(1), and one P(3) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Mn(1), two equivalent Ag(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Mn(2), two equivalent Ag(1), and one P(2) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Mn(3), one Ag(2), one Ag(3), and one P(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Fe(1), one Ag(2), one Ag(3), and one P(2) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Mn(3), one Ag(1), and one P(3) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Fe(1), one Ag(1), and one P(4) atom.
Ag2FeMn2(PO4)3 crystallizes in the monoclinic C2 space group. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(7) atoms to form distorted MnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, and edges with two equivalent Mn(3)O6 octahedra. Both Mn(1)-O(3) bond lengths are 2.25 Å. Both Mn(1)-O(5) bond lengths are 2.23 Å. Both Mn(1)-O(7) bond lengths are 2.25 Å. In the second Mn site, Mn(2) is bonded to two equivalent O(4), two equivalent O(6), and two equivalent O(8) atoms to form distorted MnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and edges with two equivalent Fe(1)O6 octahedra. Both Mn(2)-O(4) bond lengths are 2.31 Å. Both Mn(2)-O(6) bond lengths are 2.33 Å. Both Mn(2)-O(8) bond lengths are 2.20 Å. In the third Mn site, Mn(3) is bonded to one O(1), one O(11), one O(2), one O(3), one O(5), and one O(9) atom to form distorted MnO6 octahedra that share  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  an edgeedge with one Mn(1)O6 octahedra, and  an edgeedge with one Fe(1)O6 octahedra. The Mn(3)-O(1) bond length is 2.34 Å. The Mn(3)-O(11) bond length is 2.08 Å. The Mn(3)-O(2) bond length is 2.19 Å. The Mn(3)-O(3) bond length is 2.16 Å. The Mn(3)-O(5) bond length is 2.20 Å. The Mn(3)-O(9) bond length is 2.13 Å. Fe(1) is bonded to one O(1), one O(10), one O(12), one O(2), one O(4), and one O(6) atom to form FeO6 octahedra that share  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  an edgeedge with one Mn(2)O6 octahedra, and  an edgeedge with one Mn(3)O6 octahedra. The Fe(1)-O(1) bond length is 2.08 Å. The Fe(1)-O(10) bond length is 2.07 Å. The Fe(1)-O(12) bond length is 1.98 Å. The Fe(1)-O(2) bond length is 2.18 Å. The Fe(1)-O(4) bond length is 2.10 Å. The Fe(1)-O(6) bond length is 2.06 Å. There are three inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 6-coordinate geometry to one O(11), one O(12), two equivalent O(7), and two equivalent O(8) atoms. The Ag(1)-O(11) bond length is 2.40 Å. The Ag(1)-O(12) bond length is 2.44 Å. There is one shorter (2.45 Å) and one longer (2.69 Å) Ag(1)-O(7) bond length. There is one shorter (2.50 Å) and one longer (2.68 Å) Ag(1)-O(8) bond length. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to two equivalent O(10) and two equivalent O(9) atoms. Both Ag(2)-O(10) bond lengths are 2.59 Å. Both Ag(2)-O(9) bond lengths are 2.66 Å. In the third Ag site, Ag(3) is bonded in a 4-coordinate geometry to two equivalent O(10) and two equivalent O(9) atoms. Both Ag(3)-O(10) bond lengths are 2.74 Å. Both Ag(3)-O(9) bond lengths are 2.41 Å. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(4), one O(7), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, and corners with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-62°. The P(1)-O(1) bond length is 1.56 Å. The P(1)-O(4) bond length is 1.58 Å. The P(1)-O(7) bond length is 1.54 Å. The P(1)-O(9) bond length is 1.56 Å. In the second P site, P(2) is bonded to one O(10), one O(2), one O(3), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, and corners with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-61°. The P(2)-O(10) bond length is 1.58 Å. The P(2)-O(2) bond length is 1.56 Å. The P(2)-O(3) bond length is 1.56 Å. The P(2)-O(8) bond length is 1.54 Å. In the third P site, P(3) is bonded to two equivalent O(11) and two equivalent O(6) atoms to form PO4 tetrahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, and corners with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-66°. Both P(3)-O(11) bond lengths are 1.53 Å. Both P(3)-O(6) bond lengths are 1.59 Å. In the fourth P site, P(4) is bonded to two equivalent O(12) and two equivalent O(5) atoms to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, and corners with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-59°. Both P(4)-O(12) bond lengths are 1.57 Å. Both P(4)-O(5) bond lengths are 1.55 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mn(3), one Fe(1), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mn(3), one Fe(1), and one P(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(3), and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mn(2), one Fe(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(3), and one P(4) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Mn(2), one Fe(1), and one P(3) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Mn(1), two equivalent Ag(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Mn(2), two equivalent Ag(1), and one P(2) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Mn(3), one Ag(2), one Ag(3), and one P(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Fe(1), one Ag(2), one Ag(3), and one P(2) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Mn(3), one Ag(1), and one P(3) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Fe(1), one Ag(1), and one P(4) atom.