The structure described by MgMn4(AgO4)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(10), one O(12), and one O(9) atom. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(15), one O(2), and one O(7) atom to form MnO4 tetrahedra that share  a cornercorner with one Ag(2)O6 octahedra, corners with two equivalent Ag(3)O6 octahedra, and corners with two equivalent Ag(1)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 14-56°. In the second Mn site, Mn(2) is bonded to one O(11), one O(13), one O(16), and one O(4) atom to form MnO4 tetrahedra that share  a cornercorner with one Ag(3)O6 octahedra, corners with two equivalent Ag(2)O6 octahedra, corners with two equivalent Ag(4)O4 tetrahedra, and  a cornercorner with one Ag(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 43-54°. In the third Mn site, Mn(3) is bonded to one O(12), one O(14), one O(5), and one O(9) atom to form MnO4 tetrahedra that share  a cornercorner with one Ag(2)O6 octahedra, corners with two equivalent Ag(3)O6 octahedra,  a cornercorner with one Ag(4)O4 tetrahedra, and  a cornercorner with one Ag(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 47-64°. In the fourth Mn site, Mn(4) is bonded to one O(10), one O(3), one O(6), and one O(8) atom to form MnO4 tetrahedra that share  a cornercorner with one Ag(3)O6 octahedra, corners with two equivalent Ag(2)O6 octahedra, and  a cornercorner with one Ag(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 31-63°. There are four inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to one O(1), one O(2), one O(4), and one O(9) atom to form AgO4 trigonal pyramids that share  a cornercorner with one Ag(3)O6 octahedra,  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra, and corners with two equivalent Mn(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 68°. In the second Ag site, Ag(2) is bonded to one O(13), one O(14), one O(16), one O(6), one O(7), and one O(8) atom to form AgO6 octahedra that share  a cornercorner with one Mn(1)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra,  a cornercorner with one Ag(4)O4 tetrahedra, corners with two equivalent Mn(2)O4 tetrahedra, corners with two equivalent Mn(4)O4 tetrahedra, and  an edgeedge with one Ag(3)O6 octahedra. In the third Ag site, Ag(3) is bonded to one O(12), one O(14), one O(15), one O(16), one O(2), and one O(3) atom to form distorted AgO6 octahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(4)O4 tetrahedra, corners with two equivalent Mn(1)O4 tetrahedra, corners with two equivalent Mn(3)O4 tetrahedra,  a cornercorner with one Ag(1)O4 trigonal pyramid, and  an edgeedge with one Ag(2)O6 octahedra. In the fourth Ag site, Ag(4) is bonded to one O(10), one O(11), one O(13), and one O(5) atom to form distorted AgO4 tetrahedra that share  a cornercorner with one Ag(2)O6 octahedra,  a cornercorner with one Mn(3)O4 tetrahedra,  a cornercorner with one Mn(4)O4 tetrahedra, and corners with two equivalent Mn(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 69°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), and one Ag(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mn(1), one Ag(1), and one Ag(3) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Mn(4) and one Ag(3) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Mn(2) and one Ag(1) atom. In the fifth O site, O(5) is bonded in a distorted linear geometry to one Mn(3) and one Ag(4) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Mn(4) and one Ag(2) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one Mn(1) and one Ag(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Mn(4) and one Ag(2) atom. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Mn(3), and one Ag(1) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(4), and one Ag(4) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Mn(2) and one Ag(4) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(3), and one Ag(3) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one Mn(2), one Ag(2), and one Ag(4) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal planar geometry to one Mn(3), one Ag(2), and one Ag(3) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one Ag(3) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Mn(2), one Ag(2), and one Ag(3) atom. is represented by the CIF file [CIF]
data_MgMn4(AgO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.623
_cell_length_b   8.083
_cell_length_c   8.724
_cell_angle_alpha   89.326
_cell_angle_beta   83.094
_cell_angle_gamma   96.974
_symmetry_Int_Tables_number   1
_cell_volume   390.571
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mg  Mg0  1  0.911  0.131  0.897  1.0
  Mn  Mn1  1  0.797  0.135  0.308  1.0
  Mn  Mn2  1  0.249  0.631  0.210  1.0
  Mn  Mn3  1  0.731  0.393  0.774  1.0
  Mn  Mn4  1  0.201  0.861  0.685  1.0
  Ag  Ag5  1  0.338  0.188  0.083  1.0
  Ag  Ag6  1  0.697  0.687  0.490  1.0
  Ag  Ag7  1  0.277  0.309  0.521  1.0
  Ag  Ag8  1  0.801  0.763  0.043  1.0
  O  O9  1  0.929  0.101  0.122  1.0
  O  O10  1  0.529  0.203  0.297  1.0
  O  O11  1  0.253  0.018  0.565  1.0
  O  O12  1  0.255  0.475  0.096  1.0
  O  O13  1  0.723  0.547  0.894  1.0
  O  O14  1  0.453  0.797  0.715  1.0
  O  O15  1  0.756  0.959  0.407  1.0
  O  O16  1  0.032  0.711  0.615  1.0
  O  O17  1  0.593  0.205  0.871  1.0
  O  O18  1  0.052  0.921  0.852  1.0
  O  O19  1  0.414  0.796  0.125  1.0
  O  O20  1  0.016  0.322  0.746  1.0
  O  O21  1  0.969  0.673  0.251  1.0
  O  O22  1  0.607  0.422  0.608  1.0
  O  O23  1  0.972  0.283  0.381  1.0
  O  O24  1  0.362  0.587  0.368  1.0
[/CIF]
.
The structure described by MgMn4(AgO4)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(10), one O(12), and one O(9) atom. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(15), one O(2), and one O(7) atom to form MnO4 tetrahedra that share  a cornercorner with one Ag(2)O6 octahedra, corners with two equivalent Ag(3)O6 octahedra, and corners with two equivalent Ag(1)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 14-56°. In the second Mn site, Mn(2) is bonded to one O(11), one O(13), one O(16), and one O(4) atom to form MnO4 tetrahedra that share  a cornercorner with one Ag(3)O6 octahedra, corners with two equivalent Ag(2)O6 octahedra, corners with two equivalent Ag(4)O4 tetrahedra, and  a cornercorner with one Ag(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 43-54°. In the third Mn site, Mn(3) is bonded to one O(12), one O(14), one O(5), and one O(9) atom to form MnO4 tetrahedra that share  a cornercorner with one Ag(2)O6 octahedra, corners with two equivalent Ag(3)O6 octahedra,  a cornercorner with one Ag(4)O4 tetrahedra, and  a cornercorner with one Ag(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 47-64°. In the fourth Mn site, Mn(4) is bonded to one O(10), one O(3), one O(6), and one O(8) atom to form MnO4 tetrahedra that share  a cornercorner with one Ag(3)O6 octahedra, corners with two equivalent Ag(2)O6 octahedra, and  a cornercorner with one Ag(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 31-63°. There are four inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to one O(1), one O(2), one O(4), and one O(9) atom to form AgO4 trigonal pyramids that share  a cornercorner with one Ag(3)O6 octahedra,  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra, and corners with two equivalent Mn(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 68°. In the second Ag site, Ag(2) is bonded to one O(13), one O(14), one O(16), one O(6), one O(7), and one O(8) atom to form AgO6 octahedra that share  a cornercorner with one Mn(1)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra,  a cornercorner with one Ag(4)O4 tetrahedra, corners with two equivalent Mn(2)O4 tetrahedra, corners with two equivalent Mn(4)O4 tetrahedra, and  an edgeedge with one Ag(3)O6 octahedra. In the third Ag site, Ag(3) is bonded to one O(12), one O(14), one O(15), one O(16), one O(2), and one O(3) atom to form distorted AgO6 octahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(4)O4 tetrahedra, corners with two equivalent Mn(1)O4 tetrahedra, corners with two equivalent Mn(3)O4 tetrahedra,  a cornercorner with one Ag(1)O4 trigonal pyramid, and  an edgeedge with one Ag(2)O6 octahedra. In the fourth Ag site, Ag(4) is bonded to one O(10), one O(11), one O(13), and one O(5) atom to form distorted AgO4 tetrahedra that share  a cornercorner with one Ag(2)O6 octahedra,  a cornercorner with one Mn(3)O4 tetrahedra,  a cornercorner with one Mn(4)O4 tetrahedra, and corners with two equivalent Mn(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 69°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), and one Ag(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mn(1), one Ag(1), and one Ag(3) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Mn(4) and one Ag(3) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Mn(2) and one Ag(1) atom. In the fifth O site, O(5) is bonded in a distorted linear geometry to one Mn(3) and one Ag(4) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Mn(4) and one Ag(2) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one Mn(1) and one Ag(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Mn(4) and one Ag(2) atom. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Mn(3), and one Ag(1) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(4), and one Ag(4) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Mn(2) and one Ag(4) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(3), and one Ag(3) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one Mn(2), one Ag(2), and one Ag(4) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal planar geometry to one Mn(3), one Ag(2), and one Ag(3) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one Ag(3) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Mn(2), one Ag(2), and one Ag(3) atom. is represented by the CIF file [CIF]
data_MgMn4(AgO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.623
_cell_length_b   8.083
_cell_length_c   8.724
_cell_angle_alpha   89.326
_cell_angle_beta   83.094
_cell_angle_gamma   96.974
_symmetry_Int_Tables_number   1
_cell_volume   390.571
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mg  Mg0  1  0.911  0.131  0.897  1.0
  Mn  Mn1  1  0.797  0.135  0.308  1.0
  Mn  Mn2  1  0.249  0.631  0.210  1.0
  Mn  Mn3  1  0.731  0.393  0.774  1.0
  Mn  Mn4  1  0.201  0.861  0.685  1.0
  Ag  Ag5  1  0.338  0.188  0.083  1.0
  Ag  Ag6  1  0.697  0.687  0.490  1.0
  Ag  Ag7  1  0.277  0.309  0.521  1.0
  Ag  Ag8  1  0.801  0.763  0.043  1.0
  O  O9  1  0.929  0.101  0.122  1.0
  O  O10  1  0.529  0.203  0.297  1.0
  O  O11  1  0.253  0.018  0.565  1.0
  O  O12  1  0.255  0.475  0.096  1.0
  O  O13  1  0.723  0.547  0.894  1.0
  O  O14  1  0.453  0.797  0.715  1.0
  O  O15  1  0.756  0.959  0.407  1.0
  O  O16  1  0.032  0.711  0.615  1.0
  O  O17  1  0.593  0.205  0.871  1.0
  O  O18  1  0.052  0.921  0.852  1.0
  O  O19  1  0.414  0.796  0.125  1.0
  O  O20  1  0.016  0.322  0.746  1.0
  O  O21  1  0.969  0.673  0.251  1.0
  O  O22  1  0.607  0.422  0.608  1.0
  O  O23  1  0.972  0.283  0.381  1.0
  O  O24  1  0.362  0.587  0.368  1.0
[/CIF]
.