The compound described by V3Mn2NiO8 is Spinel-derived structured and crystallizes in the trigonal R-3m space group. V(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form VO6 octahedra that share corners with six equivalent Mn(1)O4 tetrahedra, edges with two equivalent Ni(1)O6 octahedra, and edges with four equivalent V(1)O6 octahedra. Mn(1) is bonded to one O(1) and three equivalent O(2) atoms to form MnO4 tetrahedra that share corners with three equivalent Ni(1)O6 octahedra and corners with nine equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-61°. Ni(1) is bonded to six equivalent O(2) atoms to form NiO6 octahedra that share corners with six equivalent Mn(1)O4 tetrahedra and edges with six equivalent V(1)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded to three equivalent V(1) and one Mn(1) atom to form distorted corner-sharing OMnV3 trigonal pyramids. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent V(1), one Mn(1), and one Ni(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mn2V3NiO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.113
_cell_length_b   6.113
_cell_length_c   6.113
_cell_angle_alpha   59.861
_cell_angle_beta   59.861
_cell_angle_gamma   59.861
_symmetry_Int_Tables_number   1
_cell_volume   160.992
_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
  Mn  Mn0  1  0.124  0.124  0.124  1.0
  Mn  Mn1  1  0.876  0.876  0.876  1.0
  V  V2  1  0.500  0.000  0.500  1.0
  V  V3  1  0.000  0.500  0.500  1.0
  V  V4  1  0.500  0.500  0.000  1.0
  Ni  Ni5  1  0.500  0.500  0.500  1.0
  O  O6  1  0.737  0.737  0.737  1.0
  O  O7  1  0.743  0.288  0.743  1.0
  O  O8  1  0.288  0.743  0.743  1.0
  O  O9  1  0.743  0.743  0.288  1.0
  O  O10  1  0.263  0.263  0.263  1.0
  O  O11  1  0.257  0.712  0.257  1.0
  O  O12  1  0.712  0.257  0.257  1.0
  O  O13  1  0.257  0.257  0.712  1.0
[/CIF]
.
The compound described by V3Mn2NiO8 is Spinel-derived structured and crystallizes in the trigonal R-3m space group. V(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form VO6 octahedra that share corners with six equivalent Mn(1)O4 tetrahedra, edges with two equivalent Ni(1)O6 octahedra, and edges with four equivalent V(1)O6 octahedra. Mn(1) is bonded to one O(1) and three equivalent O(2) atoms to form MnO4 tetrahedra that share corners with three equivalent Ni(1)O6 octahedra and corners with nine equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-61°. Ni(1) is bonded to six equivalent O(2) atoms to form NiO6 octahedra that share corners with six equivalent Mn(1)O4 tetrahedra and edges with six equivalent V(1)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded to three equivalent V(1) and one Mn(1) atom to form distorted corner-sharing OMnV3 trigonal pyramids. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent V(1), one Mn(1), and one Ni(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mn2V3NiO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.113
_cell_length_b   6.113
_cell_length_c   6.113
_cell_angle_alpha   59.861
_cell_angle_beta   59.861
_cell_angle_gamma   59.861
_symmetry_Int_Tables_number   1
_cell_volume   160.992
_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
  Mn  Mn0  1  0.124  0.124  0.124  1.0
  Mn  Mn1  1  0.876  0.876  0.876  1.0
  V  V2  1  0.500  0.000  0.500  1.0
  V  V3  1  0.000  0.500  0.500  1.0
  V  V4  1  0.500  0.500  0.000  1.0
  Ni  Ni5  1  0.500  0.500  0.500  1.0
  O  O6  1  0.737  0.737  0.737  1.0
  O  O7  1  0.743  0.288  0.743  1.0
  O  O8  1  0.288  0.743  0.743  1.0
  O  O9  1  0.743  0.743  0.288  1.0
  O  O10  1  0.263  0.263  0.263  1.0
  O  O11  1  0.257  0.712  0.257  1.0
  O  O12  1  0.712  0.257  0.257  1.0
  O  O13  1  0.257  0.257  0.712  1.0
[/CIF]
.