The structure described by Bi2NiMnO6 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic P2_1/c space group. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MnO6 octahedra that share corners with six equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-30°. Ni(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form NiO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-30°. Bi(1) is bonded in a 8-coordinate geometry to two equivalent O(3), three equivalent O(1), and three equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Mn(1), one Ni(1), and three equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Mn(1), one Ni(1), and three equivalent Bi(1) atoms. In the third O site, O(3) is bonded to one Mn(1), one Ni(1), and two equivalent Bi(1) atoms to form distorted corner-sharing OMnNiBi2 tetrahedra. is represented by the CIF file [CIF]
data_MnNi(BiO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.442
_cell_length_b   5.661
_cell_length_c   7.765
_cell_angle_alpha   90.000
_cell_angle_beta   89.737
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   239.206
_cell_formula_units_Z   2
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  0.500  0.000  0.500  1.0
  Mn  Mn1  1  1.000  0.500  1.000  1.0
  Ni  Ni2  1  1.000  0.500  0.500  1.0
  Ni  Ni3  1  0.500  0.000  0.000  1.0
  Bi  Bi4  1  0.010  0.057  0.250  1.0
  Bi  Bi5  1  0.490  0.557  0.250  1.0
  Bi  Bi6  1  0.510  0.443  0.750  1.0
  Bi  Bi7  1  0.990  0.943  0.750  1.0
  O  O8  1  0.811  0.212  0.955  1.0
  O  O9  1  0.791  0.193  0.544  1.0
  O  O10  1  0.909  0.474  0.242  1.0
  O  O11  1  0.189  0.788  0.045  1.0
  O  O12  1  0.409  0.026  0.742  1.0
  O  O13  1  0.689  0.712  0.545  1.0
  O  O14  1  0.709  0.693  0.956  1.0
  O  O15  1  0.209  0.807  0.456  1.0
  O  O16  1  0.591  0.974  0.258  1.0
  O  O17  1  0.311  0.288  0.455  1.0
  O  O18  1  0.291  0.307  0.044  1.0
  O  O19  1  0.091  0.526  0.758  1.0
[/CIF]
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The structure described by Bi2NiMnO6 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic P2_1/c space group. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MnO6 octahedra that share corners with six equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-30°. Ni(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form NiO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-30°. Bi(1) is bonded in a 8-coordinate geometry to two equivalent O(3), three equivalent O(1), and three equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Mn(1), one Ni(1), and three equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Mn(1), one Ni(1), and three equivalent Bi(1) atoms. In the third O site, O(3) is bonded to one Mn(1), one Ni(1), and two equivalent Bi(1) atoms to form distorted corner-sharing OMnNiBi2 tetrahedra. is represented by the CIF file [CIF]
data_MnNi(BiO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.442
_cell_length_b   5.661
_cell_length_c   7.765
_cell_angle_alpha   90.000
_cell_angle_beta   89.737
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   239.206
_cell_formula_units_Z   2
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  0.500  0.000  0.500  1.0
  Mn  Mn1  1  1.000  0.500  1.000  1.0
  Ni  Ni2  1  1.000  0.500  0.500  1.0
  Ni  Ni3  1  0.500  0.000  0.000  1.0
  Bi  Bi4  1  0.010  0.057  0.250  1.0
  Bi  Bi5  1  0.490  0.557  0.250  1.0
  Bi  Bi6  1  0.510  0.443  0.750  1.0
  Bi  Bi7  1  0.990  0.943  0.750  1.0
  O  O8  1  0.811  0.212  0.955  1.0
  O  O9  1  0.791  0.193  0.544  1.0
  O  O10  1  0.909  0.474  0.242  1.0
  O  O11  1  0.189  0.788  0.045  1.0
  O  O12  1  0.409  0.026  0.742  1.0
  O  O13  1  0.689  0.712  0.545  1.0
  O  O14  1  0.709  0.693  0.956  1.0
  O  O15  1  0.209  0.807  0.456  1.0
  O  O16  1  0.591  0.974  0.258  1.0
  O  O17  1  0.311  0.288  0.455  1.0
  O  O18  1  0.291  0.307  0.044  1.0
  O  O19  1  0.091  0.526  0.758  1.0
[/CIF]
.