The material structure described by Mn(AsO2)2 crystallizes in the tetragonal P4_2/mbc space group. Mn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form edge-sharing MnO6 octahedra. As(1) is bonded in a distorted trigonal non-coplanar geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal planar geometry to one Mn(1) and two equivalent As(1) atoms. In the second O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Mn(1) and one As(1) atom. is represented by the CIF file [CIF]
data_Mn(AsO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.736
_cell_length_b   8.591
_cell_length_c   8.591
_cell_angle_alpha   89.977
_cell_angle_beta   90.001
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   423.322
_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  0.750  1.000  0.500  1.0
  Mn  Mn1  1  0.750  0.500  0.000  1.0
  Mn  Mn2  1  0.250  0.000  0.500  1.0
  Mn  Mn3  1  0.250  0.500  1.000  1.0
  As  As4  1  0.500  0.175  0.810  1.0
  As  As5  1  0.000  0.190  0.175  1.0
  As  As6  1  0.000  0.310  0.675  1.0
  As  As7  1  0.500  0.325  0.310  1.0
  As  As8  1  0.500  0.675  0.690  1.0
  As  As9  1  0.000  0.690  0.325  1.0
  As  As10  1  1.000  0.810  0.825  1.0
  As  As11  1  0.500  0.825  0.190  1.0
  O  O12  1  0.000  0.110  0.641  1.0
  O  O13  1  0.500  0.141  0.610  1.0
  O  O14  1  0.500  0.359  0.110  1.0
  O  O15  1  1.000  0.390  0.141  1.0
  O  O16  1  1.000  0.610  0.859  1.0
  O  O17  1  0.500  0.641  0.890  1.0
  O  O18  1  0.500  0.859  0.390  1.0
  O  O19  1  0.000  0.890  0.359  1.0
  O  O20  1  0.250  0.185  0.315  1.0
  O  O21  1  0.750  0.185  0.315  1.0
  O  O22  1  0.250  0.315  0.815  1.0
  O  O23  1  0.750  0.315  0.815  1.0
  O  O24  1  0.250  0.685  0.185  1.0
  O  O25  1  0.750  0.685  0.185  1.0
  O  O26  1  0.250  0.815  0.685  1.0
  O  O27  1  0.750  0.815  0.685  1.0
[/CIF]
.
The material structure described by Mn(AsO2)2 crystallizes in the tetragonal P4_2/mbc space group. Mn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form edge-sharing MnO6 octahedra. As(1) is bonded in a distorted trigonal non-coplanar geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal planar geometry to one Mn(1) and two equivalent As(1) atoms. In the second O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Mn(1) and one As(1) atom. is represented by the CIF file [CIF]
data_Mn(AsO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.736
_cell_length_b   8.591
_cell_length_c   8.591
_cell_angle_alpha   89.977
_cell_angle_beta   90.001
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   423.322
_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  0.750  1.000  0.500  1.0
  Mn  Mn1  1  0.750  0.500  0.000  1.0
  Mn  Mn2  1  0.250  0.000  0.500  1.0
  Mn  Mn3  1  0.250  0.500  1.000  1.0
  As  As4  1  0.500  0.175  0.810  1.0
  As  As5  1  0.000  0.190  0.175  1.0
  As  As6  1  0.000  0.310  0.675  1.0
  As  As7  1  0.500  0.325  0.310  1.0
  As  As8  1  0.500  0.675  0.690  1.0
  As  As9  1  0.000  0.690  0.325  1.0
  As  As10  1  1.000  0.810  0.825  1.0
  As  As11  1  0.500  0.825  0.190  1.0
  O  O12  1  0.000  0.110  0.641  1.0
  O  O13  1  0.500  0.141  0.610  1.0
  O  O14  1  0.500  0.359  0.110  1.0
  O  O15  1  1.000  0.390  0.141  1.0
  O  O16  1  1.000  0.610  0.859  1.0
  O  O17  1  0.500  0.641  0.890  1.0
  O  O18  1  0.500  0.859  0.390  1.0
  O  O19  1  0.000  0.890  0.359  1.0
  O  O20  1  0.250  0.185  0.315  1.0
  O  O21  1  0.750  0.185  0.315  1.0
  O  O22  1  0.250  0.315  0.815  1.0
  O  O23  1  0.750  0.315  0.815  1.0
  O  O24  1  0.250  0.685  0.185  1.0
  O  O25  1  0.750  0.685  0.185  1.0
  O  O26  1  0.250  0.815  0.685  1.0
  O  O27  1  0.750  0.815  0.685  1.0
[/CIF]
.