NaMn2FeAg(PO4)3 crystallizes in the monoclinic C2 space group. Na(1) is bonded in a 4-coordinate geometry to one O(4), one O(7), and two equivalent O(6) atoms. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(4), one O(5), one O(6), and one O(8) atom to form distorted MnO5 square pyramids that share  a cornercorner with one P(4)O4 tetrahedra. In the second Mn site, Mn(2) is bonded in a square co-planar geometry to two equivalent O(5) and two equivalent O(6) atoms. In the third Mn site, Mn(3) is bonded in a 4-coordinate geometry to two equivalent O(11) and two equivalent O(12) atoms. Fe(1) is bonded in a 5-coordinate geometry to one O(10), one O(11), one O(12), one O(2), and one O(7) atom. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(5) atoms. In the second Ag site, Ag(2) is bonded in an L-shaped geometry to two equivalent O(11) atoms. There are four inequivalent P sites. In the first P site, P(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(3), and one O(4) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to two equivalent O(2) and two equivalent O(3) atoms. In the third P site, P(3) is bonded to one O(10), one O(12), one O(7), and one O(9) atom to form corner-sharing PO4 tetrahedra. In the fourth P site, P(4) is bonded to two equivalent O(8) and two equivalent O(9) atoms to form PO4 tetrahedra that share corners with two equivalent Mn(1)O5 square pyramids and corners with two equivalent P(3)O4 tetrahedra. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted L-shaped geometry to one Mn(1) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Fe(1), one Ag(1), and one P(2) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a T-shaped geometry to one Na(1), one Mn(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a T-shaped geometry to one Mn(1), one Mn(2), and one Ag(1) atom. In the sixth O site, O(6) is bonded to two equivalent Na(1), one Mn(1), and one Mn(2) atom to form distorted face-sharing ONa2Mn2 trigonal pyramids. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Na(1), one Fe(1), and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one P(4) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one P(3) and one P(4) atom. In the tenth O site, O(10) is bonded in a water-like geometry to one Fe(1) and one P(3) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Mn(3), one Fe(1), and one Ag(2) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Mn(3), one Fe(1), and one P(3) atom.
NaMn2FeAg(PO4)3 crystallizes in the monoclinic C2 space group. Na(1) is bonded in a 4-coordinate geometry to one O(4), one O(7), and two equivalent O(6) atoms. The Na(1)-O(4) bond length is 2.36 Å. The Na(1)-O(7) bond length is 2.22 Å. There is one shorter (2.44 Å) and one longer (2.48 Å) Na(1)-O(6) bond length. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(4), one O(5), one O(6), and one O(8) atom to form distorted MnO5 square pyramids that share  a cornercorner with one P(4)O4 tetrahedra. The Mn(1)-O(1) bond length is 2.41 Å. The Mn(1)-O(4) bond length is 2.05 Å. The Mn(1)-O(5) bond length is 1.88 Å. The Mn(1)-O(6) bond length is 1.89 Å. The Mn(1)-O(8) bond length is 2.07 Å. In the second Mn site, Mn(2) is bonded in a square co-planar geometry to two equivalent O(5) and two equivalent O(6) atoms. Both Mn(2)-O(5) bond lengths are 1.91 Å. Both Mn(2)-O(6) bond lengths are 1.90 Å. In the third Mn site, Mn(3) is bonded in a 4-coordinate geometry to two equivalent O(11) and two equivalent O(12) atoms. Both Mn(3)-O(11) bond lengths are 2.06 Å. Both Mn(3)-O(12) bond lengths are 2.35 Å. Fe(1) is bonded in a 5-coordinate geometry to one O(10), one O(11), one O(12), one O(2), and one O(7) atom. The Fe(1)-O(10) bond length is 2.03 Å. The Fe(1)-O(11) bond length is 1.79 Å. The Fe(1)-O(12) bond length is 2.24 Å. The Fe(1)-O(2) bond length is 2.02 Å. The Fe(1)-O(7) bond length is 2.55 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(5) atoms. Both Ag(1)-O(2) bond lengths are 2.46 Å. Both Ag(1)-O(5) bond lengths are 2.23 Å. In the second Ag site, Ag(2) is bonded in an L-shaped geometry to two equivalent O(11) atoms. Both Ag(2)-O(11) bond lengths are 2.32 Å. There are four inequivalent P sites. In the first P site, P(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(3), and one O(4) atom. The P(1)-O(1) bond length is 1.54 Å. The P(1)-O(3) bond length is 1.78 Å. The P(1)-O(4) bond length is 1.59 Å. In the second P site, P(2) is bonded in a tetrahedral geometry to two equivalent O(2) and two equivalent O(3) atoms. Both P(2)-O(2) bond lengths are 1.54 Å. Both P(2)-O(3) bond lengths are 1.58 Å. In the third P site, P(3) is bonded to one O(10), one O(12), one O(7), and one O(9) atom to form corner-sharing PO4 tetrahedra. The P(3)-O(10) bond length is 1.54 Å. The P(3)-O(12) bond length is 1.56 Å. The P(3)-O(7) bond length is 1.52 Å. The P(3)-O(9) bond length is 1.67 Å. In the fourth P site, P(4) is bonded to two equivalent O(8) and two equivalent O(9) atoms to form PO4 tetrahedra that share corners with two equivalent Mn(1)O5 square pyramids and corners with two equivalent P(3)O4 tetrahedra. Both P(4)-O(8) bond lengths are 1.51 Å. Both P(4)-O(9) bond lengths are 1.61 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted L-shaped geometry to one Mn(1) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Fe(1), one Ag(1), and one P(2) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a T-shaped geometry to one Na(1), one Mn(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a T-shaped geometry to one Mn(1), one Mn(2), and one Ag(1) atom. In the sixth O site, O(6) is bonded to two equivalent Na(1), one Mn(1), and one Mn(2) atom to form distorted face-sharing ONa2Mn2 trigonal pyramids. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Na(1), one Fe(1), and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one P(4) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one P(3) and one P(4) atom. In the tenth O site, O(10) is bonded in a water-like geometry to one Fe(1) and one P(3) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Mn(3), one Fe(1), and one Ag(2) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Mn(3), one Fe(1), and one P(3) atom.