The structure described by Mn2Ni(BiO3)3 crystallizes in the monoclinic C2/c space group. Mn(1) is bonded to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with three equivalent Mn(1)O6 octahedra and corners with three equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-31°. Ni(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form NiO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-29°. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 6-coordinate geometry to one O(3), one O(4), two equivalent O(1), and two equivalent O(5) atoms. In the second Bi site, Bi(2) is bonded in a 5-coordinate geometry to one O(2), two equivalent O(3), and two equivalent O(4) atoms. There are five inequivalent O sites. In the first O site, O(5) is bonded to one Mn(1), one Ni(1), and two equivalent Bi(1) atoms to form a mixture of distorted edge and corner-sharing OMnNiBi2 trigonal pyramids. In the second O site, O(1) is bonded in a 3-coordinate geometry to one Mn(1), one Ni(1), and two equivalent Bi(1) atoms. In the third O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Mn(1) and one Bi(2) atom. In the fourth O site, O(3) is bonded in a 4-coordinate geometry to one Mn(1), one Ni(1), one Bi(1), and one Bi(2) atom. In the fifth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Mn(1), one Bi(1), and one Bi(2) atom. is represented by the CIF file [CIF]
data_Mn2Ni(BiO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.535
_cell_length_b   5.535
_cell_length_c   13.472
_cell_angle_alpha   89.953
_cell_angle_beta   89.953
_cell_angle_gamma   61.278
_symmetry_Int_Tables_number   1
_cell_volume   361.953
_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  0.833  0.838  0.667  1.0
  Mn  Mn1  1  0.167  0.162  0.333  1.0
  Mn  Mn2  1  0.838  0.833  0.167  1.0
  Mn  Mn3  1  0.162  0.167  0.833  1.0
  Ni  Ni4  1  0.500  0.500  0.000  1.0
  Ni  Ni5  1  0.500  0.500  0.500  1.0
  Bi  Bi6  1  0.197  0.145  0.079  1.0
  Bi  Bi7  1  0.526  0.474  0.750  1.0
  Bi  Bi8  1  0.855  0.803  0.421  1.0
  Bi  Bi9  1  0.474  0.526  0.250  1.0
  Bi  Bi10  1  0.803  0.855  0.921  1.0
  Bi  Bi11  1  0.145  0.197  0.579  1.0
  O  O12  1  0.234  0.413  0.914  1.0
  O  O13  1  0.587  0.766  0.586  1.0
  O  O14  1  0.907  0.093  0.250  1.0
  O  O15  1  0.413  0.234  0.414  1.0
  O  O16  1  0.766  0.587  0.086  1.0
  O  O17  1  0.093  0.907  0.750  1.0
  O  O18  1  0.206  0.709  0.104  1.0
  O  O19  1  0.536  0.037  0.769  1.0
  O  O20  1  0.873  0.370  0.434  1.0
  O  O21  1  0.630  0.127  0.066  1.0
  O  O22  1  0.963  0.464  0.731  1.0
  O  O23  1  0.291  0.794  0.396  1.0
  O  O24  1  0.037  0.536  0.269  1.0
  O  O25  1  0.370  0.873  0.934  1.0
  O  O26  1  0.709  0.206  0.604  1.0
  O  O27  1  0.464  0.963  0.231  1.0
  O  O28  1  0.794  0.291  0.896  1.0
  O  O29  1  0.127  0.630  0.566  1.0
[/CIF]
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The structure described by Mn2Ni(BiO3)3 crystallizes in the monoclinic C2/c space group. Mn(1) is bonded to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with three equivalent Mn(1)O6 octahedra and corners with three equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-31°. Ni(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form NiO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 25-29°. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 6-coordinate geometry to one O(3), one O(4), two equivalent O(1), and two equivalent O(5) atoms. In the second Bi site, Bi(2) is bonded in a 5-coordinate geometry to one O(2), two equivalent O(3), and two equivalent O(4) atoms. There are five inequivalent O sites. In the first O site, O(5) is bonded to one Mn(1), one Ni(1), and two equivalent Bi(1) atoms to form a mixture of distorted edge and corner-sharing OMnNiBi2 trigonal pyramids. In the second O site, O(1) is bonded in a 3-coordinate geometry to one Mn(1), one Ni(1), and two equivalent Bi(1) atoms. In the third O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Mn(1) and one Bi(2) atom. In the fourth O site, O(3) is bonded in a 4-coordinate geometry to one Mn(1), one Ni(1), one Bi(1), and one Bi(2) atom. In the fifth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Mn(1), one Bi(1), and one Bi(2) atom. is represented by the CIF file [CIF]
data_Mn2Ni(BiO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.535
_cell_length_b   5.535
_cell_length_c   13.472
_cell_angle_alpha   89.953
_cell_angle_beta   89.953
_cell_angle_gamma   61.278
_symmetry_Int_Tables_number   1
_cell_volume   361.953
_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  0.833  0.838  0.667  1.0
  Mn  Mn1  1  0.167  0.162  0.333  1.0
  Mn  Mn2  1  0.838  0.833  0.167  1.0
  Mn  Mn3  1  0.162  0.167  0.833  1.0
  Ni  Ni4  1  0.500  0.500  0.000  1.0
  Ni  Ni5  1  0.500  0.500  0.500  1.0
  Bi  Bi6  1  0.197  0.145  0.079  1.0
  Bi  Bi7  1  0.526  0.474  0.750  1.0
  Bi  Bi8  1  0.855  0.803  0.421  1.0
  Bi  Bi9  1  0.474  0.526  0.250  1.0
  Bi  Bi10  1  0.803  0.855  0.921  1.0
  Bi  Bi11  1  0.145  0.197  0.579  1.0
  O  O12  1  0.234  0.413  0.914  1.0
  O  O13  1  0.587  0.766  0.586  1.0
  O  O14  1  0.907  0.093  0.250  1.0
  O  O15  1  0.413  0.234  0.414  1.0
  O  O16  1  0.766  0.587  0.086  1.0
  O  O17  1  0.093  0.907  0.750  1.0
  O  O18  1  0.206  0.709  0.104  1.0
  O  O19  1  0.536  0.037  0.769  1.0
  O  O20  1  0.873  0.370  0.434  1.0
  O  O21  1  0.630  0.127  0.066  1.0
  O  O22  1  0.963  0.464  0.731  1.0
  O  O23  1  0.291  0.794  0.396  1.0
  O  O24  1  0.037  0.536  0.269  1.0
  O  O25  1  0.370  0.873  0.934  1.0
  O  O26  1  0.709  0.206  0.604  1.0
  O  O27  1  0.464  0.963  0.231  1.0
  O  O28  1  0.794  0.291  0.896  1.0
  O  O29  1  0.127  0.630  0.566  1.0
[/CIF]
.