The compound described by V4CrMnO12 crystallizes in the monoclinic C2 space group. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form VO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, and corners with two equivalent V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 30-62°. In the second V site, V(2) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form VO4 tetrahedra that share  a cornercorner with one Cr(1)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, and corners with two equivalent V(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 34-60°. Cr(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form CrO6 octahedra that share corners with two equivalent V(2)O4 tetrahedra, corners with four equivalent V(1)O4 tetrahedra, and edges with two equivalent Mn(1)O6 octahedra. Mn(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with four equivalent V(2)O4 tetrahedra, and edges with two equivalent Cr(1)O6 octahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one V(1), one Cr(1), and one Mn(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one V(1) and one Cr(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one V(2), one Cr(1), and one Mn(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one V(1) and one V(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one V(1) and one V(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one V(2) and one Mn(1) atom. is represented by the CIF card [CIF]
data_MnV4CrO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.832
_cell_length_b   6.832
_cell_length_c   5.903
_cell_angle_alpha   74.875
_cell_angle_beta   74.875
_cell_angle_gamma   84.508
_symmetry_Int_Tables_number   1
_cell_volume   256.638
_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  0.085  0.915  0.500  1.0
  V  V1  1  0.792  0.607  0.016  1.0
  V  V2  1  0.610  0.793  0.510  1.0
  V  V3  1  0.393  0.208  0.984  1.0
  V  V4  1  0.207  0.390  0.490  1.0
  Cr  Cr5  1  0.917  0.083  0.000  1.0
  O  O6  1  0.961  0.805  0.908  1.0
  O  O7  1  0.907  0.374  0.039  1.0
  O  O8  1  0.805  0.966  0.377  1.0
  O  O9  1  0.639  0.646  0.804  1.0
  O  O10  1  0.626  0.093  0.961  1.0
  O  O11  1  0.641  0.632  0.303  1.0
  O  O12  1  0.354  0.361  0.196  1.0
  O  O13  1  0.383  0.916  0.535  1.0
  O  O14  1  0.368  0.359  0.697  1.0
  O  O15  1  0.195  0.039  0.092  1.0
  O  O16  1  0.084  0.617  0.465  1.0
  O  O17  1  0.034  0.195  0.623  1.0
[/CIF]
.
The compound described by V4CrMnO12 crystallizes in the monoclinic C2 space group. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form VO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, and corners with two equivalent V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 30-62°. In the second V site, V(2) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form VO4 tetrahedra that share  a cornercorner with one Cr(1)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, and corners with two equivalent V(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 34-60°. Cr(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form CrO6 octahedra that share corners with two equivalent V(2)O4 tetrahedra, corners with four equivalent V(1)O4 tetrahedra, and edges with two equivalent Mn(1)O6 octahedra. Mn(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with four equivalent V(2)O4 tetrahedra, and edges with two equivalent Cr(1)O6 octahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one V(1), one Cr(1), and one Mn(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one V(1) and one Cr(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one V(2), one Cr(1), and one Mn(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one V(1) and one V(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one V(1) and one V(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one V(2) and one Mn(1) atom. is represented by the CIF card [CIF]
data_MnV4CrO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.832
_cell_length_b   6.832
_cell_length_c   5.903
_cell_angle_alpha   74.875
_cell_angle_beta   74.875
_cell_angle_gamma   84.508
_symmetry_Int_Tables_number   1
_cell_volume   256.638
_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  0.085  0.915  0.500  1.0
  V  V1  1  0.792  0.607  0.016  1.0
  V  V2  1  0.610  0.793  0.510  1.0
  V  V3  1  0.393  0.208  0.984  1.0
  V  V4  1  0.207  0.390  0.490  1.0
  Cr  Cr5  1  0.917  0.083  0.000  1.0
  O  O6  1  0.961  0.805  0.908  1.0
  O  O7  1  0.907  0.374  0.039  1.0
  O  O8  1  0.805  0.966  0.377  1.0
  O  O9  1  0.639  0.646  0.804  1.0
  O  O10  1  0.626  0.093  0.961  1.0
  O  O11  1  0.641  0.632  0.303  1.0
  O  O12  1  0.354  0.361  0.196  1.0
  O  O13  1  0.383  0.916  0.535  1.0
  O  O14  1  0.368  0.359  0.697  1.0
  O  O15  1  0.195  0.039  0.092  1.0
  O  O16  1  0.084  0.617  0.465  1.0
  O  O17  1  0.034  0.195  0.623  1.0
[/CIF]
.