The compound described by ZnMn2O4 crystallizes in the monoclinic P2_1 space group. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), two equivalent O(5), and two equivalent O(7) atoms. In the second Mn site, Mn(2) is bonded to one O(2), one O(4), two equivalent O(6), and two equivalent O(8) atoms to form distorted edge-sharing MnO6 octahedra. In the third Mn site, Mn(3) is bonded to one O(5), one O(7), two equivalent O(1), and two equivalent O(3) atoms to form edge-sharing MnO6 octahedra. In the fourth Mn site, Mn(4) is bonded to one O(6), one O(8), two equivalent O(2), and two equivalent O(4) atoms to form edge-sharing MnO6 octahedra. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(5), one O(6), one O(7), and one O(8) atom. In the second Zn site, Zn(2) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Mn(1), two equivalent Mn(3), and one Zn(1) atom to form OMn3Zn trigonal pyramids that share  a cornercorner with one O(5)Mn3Zn2 square pyramid,  a cornercorner with one O(6)Mn3Zn2 square pyramid,  a cornercorner with one O(8)Mn3Zn2 trigonal bipyramid,  a cornercorner with one O(2)Mn3Zn trigonal pyramid, corners with two equivalent O(1)Mn3Zn trigonal pyramids, corners with three equivalent O(3)Mn3Zn trigonal pyramids, edges with two equivalent O(5)Mn3Zn2 square pyramids, and  an edgeedge with one O(3)Mn3Zn trigonal pyramid. In the second O site, O(2) is bonded to one Mn(2), two equivalent Mn(4), and one Zn(1) atom to form distorted OMn3Zn trigonal pyramids that share  a cornercorner with one O(5)Mn3Zn2 square pyramid,  a cornercorner with one O(6)Mn3Zn2 square pyramid,  a cornercorner with one O(8)Mn3Zn2 trigonal bipyramid,  a cornercorner with one O(1)Mn3Zn trigonal pyramid, corners with two equivalent O(2)Mn3Zn trigonal pyramids, corners with three equivalent O(4)Mn3Zn trigonal pyramids, edges with two equivalent O(6)Mn3Zn2 square pyramids, edges with two equivalent O(8)Mn3Zn2 trigonal bipyramids, and  an edgeedge with one O(4)Mn3Zn trigonal pyramid. In the third O site, O(3) is bonded to one Mn(1), two equivalent Mn(3), and one Zn(2) atom to form OMn3Zn trigonal pyramids that share  a cornercorner with one O(5)Mn3Zn2 square pyramid,  a cornercorner with one O(6)Mn3Zn2 square pyramid,  a cornercorner with one O(8)Mn3Zn2 trigonal bipyramid,  a cornercorner with one O(4)Mn3Zn trigonal pyramid, corners with two equivalent O(3)Mn3Zn trigonal pyramids, corners with three equivalent O(1)Mn3Zn trigonal pyramids, edges with two equivalent O(5)Mn3Zn2 square pyramids, and  an edgeedge with one O(1)Mn3Zn trigonal pyramid. In the fourth O site, O(4) is bonded to one Mn(2), two equivalent Mn(4), and one Zn(2) atom to form OMn3Zn trigonal pyramids that share  a cornercorner with one O(5)Mn3Zn2 square pyramid,  a cornercorner with one O(6)Mn3Zn2 square pyramid,  a cornercorner with one O(8)Mn3Zn2 trigonal bipyramid,  a cornercorner with one O(3)Mn3Zn trigonal pyramid, corners with two equivalent O(4)Mn3Zn trigonal pyramids, corners with three equivalent O(2)Mn3Zn trigonal pyramids, edges with two equivalent O(6)Mn3Zn2 square pyramids, edges with two equivalent O(8)Mn3Zn2 trigonal bipyramids, and  an edgeedge with one O(2)Mn3Zn trigonal pyramid. In the fifth O site, O(5) is bonded to one Mn(3), two equivalent Mn(1), one Zn(1), and one Zn(2) atom to form distorted OMn3Zn2 square pyramids that share corners with two equivalent O(5)Mn3Zn2 square pyramids, corners with two equivalent O(6)Mn3Zn2 square pyramids,  a cornercorner with one O(1)Mn3Zn trigonal pyramid,  a cornercorner with one O(2)Mn3Zn trigonal pyramid,  a cornercorner with one O(3)Mn3Zn trigonal pyramid,  a cornercorner with one O(4)Mn3Zn trigonal pyramid,  an edgeedge with one O(8)Mn3Zn2 trigonal bipyramid, edges with two equivalent O(1)Mn3Zn trigonal pyramids, and edges with two equivalent O(3)Mn3Zn trigonal pyramids. In the sixth O site, O(6) is bonded to one Mn(4), two equivalent Mn(2), one Zn(1), and one Zn(2) atom to form distorted OMn3Zn2 square pyramids that share corners with two equivalent O(5)Mn3Zn2 square pyramids, corners with two equivalent O(6)Mn3Zn2 square pyramids,  a cornercorner with one O(8)Mn3Zn2 trigonal bipyramid,  a cornercorner with one O(1)Mn3Zn trigonal pyramid,  a cornercorner with one O(2)Mn3Zn trigonal pyramid,  a cornercorner with one O(3)Mn3Zn trigonal pyramid,  a cornercorner with one O(4)Mn3Zn trigonal pyramid, edges with three equivalent O(8)Mn3Zn2 trigonal bipyramids, edges with two equivalent O(2)Mn3Zn trigonal pyramids, and edges with two equivalent O(4)Mn3Zn trigonal pyramids. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Mn(3), two equivalent Mn(1), one Zn(1), and one Zn(2) atom. In the eighth O site, O(8) is bonded to one Mn(4), two equivalent Mn(2), one Zn(1), and one Zn(2) atom to form distorted OMn3Zn2 trigonal bipyramids that share  a cornercorner with one O(6)Mn3Zn2 square pyramid, corners with two equivalent O(8)Mn3Zn2 trigonal bipyramids,  a cornercorner with one O(1)Mn3Zn trigonal pyramid,  a cornercorner with one O(2)Mn3Zn trigonal pyramid,  a cornercorner with one O(3)Mn3Zn trigonal pyramid,  a cornercorner with one O(4)Mn3Zn trigonal pyramid,  an edgeedge with one O(5)Mn3Zn2 square pyramid, edges with three equivalent O(6)Mn3Zn2 square pyramids, edges with two equivalent O(2)Mn3Zn trigonal pyramids, and edges with two equivalent O(4)Mn3Zn trigonal pyramids. is represented by the CIF file [CIF]
data_Mn2ZnO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.123
_cell_length_b   5.173
_cell_length_c   10.361
_cell_angle_alpha   88.633
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   328.073
_cell_formula_units_Z   4
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
  Mn  Mn0  1  0.753  0.506  0.980  1.0
  Mn  Mn1  1  0.747  0.507  0.515  1.0
  Mn  Mn2  1  0.253  0.494  0.020  1.0
  Mn  Mn3  1  0.247  0.493  0.485  1.0
  Mn  Mn4  1  0.497  0.004  0.011  1.0
  Mn  Mn5  1  0.003  0.004  0.487  1.0
  Mn  Mn6  1  0.997  0.996  0.989  1.0
  Mn  Mn7  1  0.503  0.996  0.513  1.0
  Zn  Zn8  1  0.255  0.868  0.253  1.0
  Zn  Zn9  1  0.755  0.132  0.747  1.0
  Zn  Zn10  1  0.249  0.506  0.754  1.0
  Zn  Zn11  1  0.749  0.494  0.246  1.0
  O  O12  1  0.735  0.861  0.902  1.0
  O  O13  1  0.766  0.854  0.597  1.0
  O  O14  1  0.235  0.139  0.098  1.0
  O  O15  1  0.266  0.146  0.403  1.0
  O  O16  1  0.756  0.228  0.101  1.0
  O  O17  1  0.743  0.236  0.394  1.0
  O  O18  1  0.256  0.772  0.899  1.0
  O  O19  1  0.243  0.764  0.606  1.0
  O  O20  1  0.490  0.706  0.136  1.0
  O  O21  1  0.013  0.712  0.366  1.0
  O  O22  1  0.990  0.294  0.864  1.0
  O  O23  1  0.513  0.288  0.634  1.0
  O  O24  1  0.487  0.337  0.909  1.0
  O  O25  1  0.006  0.328  0.590  1.0
  O  O26  1  0.987  0.663  0.091  1.0
  O  O27  1  0.506  0.672  0.410  1.0
[/CIF]
.
The compound described by ZnMn2O4 crystallizes in the monoclinic P2_1 space group. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), two equivalent O(5), and two equivalent O(7) atoms. In the second Mn site, Mn(2) is bonded to one O(2), one O(4), two equivalent O(6), and two equivalent O(8) atoms to form distorted edge-sharing MnO6 octahedra. In the third Mn site, Mn(3) is bonded to one O(5), one O(7), two equivalent O(1), and two equivalent O(3) atoms to form edge-sharing MnO6 octahedra. In the fourth Mn site, Mn(4) is bonded to one O(6), one O(8), two equivalent O(2), and two equivalent O(4) atoms to form edge-sharing MnO6 octahedra. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(5), one O(6), one O(7), and one O(8) atom. In the second Zn site, Zn(2) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Mn(1), two equivalent Mn(3), and one Zn(1) atom to form OMn3Zn trigonal pyramids that share  a cornercorner with one O(5)Mn3Zn2 square pyramid,  a cornercorner with one O(6)Mn3Zn2 square pyramid,  a cornercorner with one O(8)Mn3Zn2 trigonal bipyramid,  a cornercorner with one O(2)Mn3Zn trigonal pyramid, corners with two equivalent O(1)Mn3Zn trigonal pyramids, corners with three equivalent O(3)Mn3Zn trigonal pyramids, edges with two equivalent O(5)Mn3Zn2 square pyramids, and  an edgeedge with one O(3)Mn3Zn trigonal pyramid. In the second O site, O(2) is bonded to one Mn(2), two equivalent Mn(4), and one Zn(1) atom to form distorted OMn3Zn trigonal pyramids that share  a cornercorner with one O(5)Mn3Zn2 square pyramid,  a cornercorner with one O(6)Mn3Zn2 square pyramid,  a cornercorner with one O(8)Mn3Zn2 trigonal bipyramid,  a cornercorner with one O(1)Mn3Zn trigonal pyramid, corners with two equivalent O(2)Mn3Zn trigonal pyramids, corners with three equivalent O(4)Mn3Zn trigonal pyramids, edges with two equivalent O(6)Mn3Zn2 square pyramids, edges with two equivalent O(8)Mn3Zn2 trigonal bipyramids, and  an edgeedge with one O(4)Mn3Zn trigonal pyramid. In the third O site, O(3) is bonded to one Mn(1), two equivalent Mn(3), and one Zn(2) atom to form OMn3Zn trigonal pyramids that share  a cornercorner with one O(5)Mn3Zn2 square pyramid,  a cornercorner with one O(6)Mn3Zn2 square pyramid,  a cornercorner with one O(8)Mn3Zn2 trigonal bipyramid,  a cornercorner with one O(4)Mn3Zn trigonal pyramid, corners with two equivalent O(3)Mn3Zn trigonal pyramids, corners with three equivalent O(1)Mn3Zn trigonal pyramids, edges with two equivalent O(5)Mn3Zn2 square pyramids, and  an edgeedge with one O(1)Mn3Zn trigonal pyramid. In the fourth O site, O(4) is bonded to one Mn(2), two equivalent Mn(4), and one Zn(2) atom to form OMn3Zn trigonal pyramids that share  a cornercorner with one O(5)Mn3Zn2 square pyramid,  a cornercorner with one O(6)Mn3Zn2 square pyramid,  a cornercorner with one O(8)Mn3Zn2 trigonal bipyramid,  a cornercorner with one O(3)Mn3Zn trigonal pyramid, corners with two equivalent O(4)Mn3Zn trigonal pyramids, corners with three equivalent O(2)Mn3Zn trigonal pyramids, edges with two equivalent O(6)Mn3Zn2 square pyramids, edges with two equivalent O(8)Mn3Zn2 trigonal bipyramids, and  an edgeedge with one O(2)Mn3Zn trigonal pyramid. In the fifth O site, O(5) is bonded to one Mn(3), two equivalent Mn(1), one Zn(1), and one Zn(2) atom to form distorted OMn3Zn2 square pyramids that share corners with two equivalent O(5)Mn3Zn2 square pyramids, corners with two equivalent O(6)Mn3Zn2 square pyramids,  a cornercorner with one O(1)Mn3Zn trigonal pyramid,  a cornercorner with one O(2)Mn3Zn trigonal pyramid,  a cornercorner with one O(3)Mn3Zn trigonal pyramid,  a cornercorner with one O(4)Mn3Zn trigonal pyramid,  an edgeedge with one O(8)Mn3Zn2 trigonal bipyramid, edges with two equivalent O(1)Mn3Zn trigonal pyramids, and edges with two equivalent O(3)Mn3Zn trigonal pyramids. In the sixth O site, O(6) is bonded to one Mn(4), two equivalent Mn(2), one Zn(1), and one Zn(2) atom to form distorted OMn3Zn2 square pyramids that share corners with two equivalent O(5)Mn3Zn2 square pyramids, corners with two equivalent O(6)Mn3Zn2 square pyramids,  a cornercorner with one O(8)Mn3Zn2 trigonal bipyramid,  a cornercorner with one O(1)Mn3Zn trigonal pyramid,  a cornercorner with one O(2)Mn3Zn trigonal pyramid,  a cornercorner with one O(3)Mn3Zn trigonal pyramid,  a cornercorner with one O(4)Mn3Zn trigonal pyramid, edges with three equivalent O(8)Mn3Zn2 trigonal bipyramids, edges with two equivalent O(2)Mn3Zn trigonal pyramids, and edges with two equivalent O(4)Mn3Zn trigonal pyramids. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Mn(3), two equivalent Mn(1), one Zn(1), and one Zn(2) atom. In the eighth O site, O(8) is bonded to one Mn(4), two equivalent Mn(2), one Zn(1), and one Zn(2) atom to form distorted OMn3Zn2 trigonal bipyramids that share  a cornercorner with one O(6)Mn3Zn2 square pyramid, corners with two equivalent O(8)Mn3Zn2 trigonal bipyramids,  a cornercorner with one O(1)Mn3Zn trigonal pyramid,  a cornercorner with one O(2)Mn3Zn trigonal pyramid,  a cornercorner with one O(3)Mn3Zn trigonal pyramid,  a cornercorner with one O(4)Mn3Zn trigonal pyramid,  an edgeedge with one O(5)Mn3Zn2 square pyramid, edges with three equivalent O(6)Mn3Zn2 square pyramids, edges with two equivalent O(2)Mn3Zn trigonal pyramids, and edges with two equivalent O(4)Mn3Zn trigonal pyramids. is represented by the CIF file [CIF]
data_Mn2ZnO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.123
_cell_length_b   5.173
_cell_length_c   10.361
_cell_angle_alpha   88.633
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   328.073
_cell_formula_units_Z   4
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
  Mn  Mn0  1  0.753  0.506  0.980  1.0
  Mn  Mn1  1  0.747  0.507  0.515  1.0
  Mn  Mn2  1  0.253  0.494  0.020  1.0
  Mn  Mn3  1  0.247  0.493  0.485  1.0
  Mn  Mn4  1  0.497  0.004  0.011  1.0
  Mn  Mn5  1  0.003  0.004  0.487  1.0
  Mn  Mn6  1  0.997  0.996  0.989  1.0
  Mn  Mn7  1  0.503  0.996  0.513  1.0
  Zn  Zn8  1  0.255  0.868  0.253  1.0
  Zn  Zn9  1  0.755  0.132  0.747  1.0
  Zn  Zn10  1  0.249  0.506  0.754  1.0
  Zn  Zn11  1  0.749  0.494  0.246  1.0
  O  O12  1  0.735  0.861  0.902  1.0
  O  O13  1  0.766  0.854  0.597  1.0
  O  O14  1  0.235  0.139  0.098  1.0
  O  O15  1  0.266  0.146  0.403  1.0
  O  O16  1  0.756  0.228  0.101  1.0
  O  O17  1  0.743  0.236  0.394  1.0
  O  O18  1  0.256  0.772  0.899  1.0
  O  O19  1  0.243  0.764  0.606  1.0
  O  O20  1  0.490  0.706  0.136  1.0
  O  O21  1  0.013  0.712  0.366  1.0
  O  O22  1  0.990  0.294  0.864  1.0
  O  O23  1  0.513  0.288  0.634  1.0
  O  O24  1  0.487  0.337  0.909  1.0
  O  O25  1  0.006  0.328  0.590  1.0
  O  O26  1  0.987  0.663  0.091  1.0
  O  O27  1  0.506  0.672  0.410  1.0
[/CIF]
.