The structure described by MgV4MnO12 crystallizes in the monoclinic C2 space group. Mg(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms. 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 and corners with two equivalent V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. 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 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 34-52°. 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 and corners with four equivalent V(2)O4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1), one V(1), and one Mn(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one V(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one V(2) and one Mn(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Mg(1), 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 distorted T-shaped geometry to one Mg(1), one V(2), and one Mn(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMnV4O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.919
_cell_length_b   6.919
_cell_length_c   5.942
_cell_angle_alpha   73.014
_cell_angle_beta   106.985
_cell_angle_gamma   102.140
_symmetry_Int_Tables_number   1
_cell_volume   257.755
_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
  Mg  Mg0  1  0.742  0.742  0.750  1.0
  Mn  Mn1  1  0.937  0.937  0.250  1.0
  V  V2  1  0.193  0.603  0.781  1.0
  V  V3  1  0.391  0.794  0.291  1.0
  V  V4  1  0.603  0.193  0.719  1.0
  V  V5  1  0.793  0.391  0.209  1.0
  O  O6  1  0.996  0.752  0.641  1.0
  O  O7  1  0.088  0.367  0.808  1.0
  O  O8  1  0.237  0.971  0.204  1.0
  O  O9  1  0.385  0.655  0.601  1.0
  O  O10  1  0.367  0.088  0.692  1.0
  O  O11  1  0.332  0.638  0.080  1.0
  O  O12  1  0.655  0.385  0.899  1.0
  O  O13  1  0.646  0.891  0.351  1.0
  O  O14  1  0.638  0.332  0.420  1.0
  O  O15  1  0.752  0.996  0.859  1.0
  O  O16  1  0.891  0.646  0.149  1.0
  O  O17  1  0.971  0.237  0.296  1.0
[/CIF]
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The structure described by MgV4MnO12 crystallizes in the monoclinic C2 space group. Mg(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms. 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 and corners with two equivalent V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. 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 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 34-52°. 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 and corners with four equivalent V(2)O4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1), one V(1), and one Mn(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one V(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one V(2) and one Mn(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Mg(1), 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 distorted T-shaped geometry to one Mg(1), one V(2), and one Mn(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMnV4O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.919
_cell_length_b   6.919
_cell_length_c   5.942
_cell_angle_alpha   73.014
_cell_angle_beta   106.985
_cell_angle_gamma   102.140
_symmetry_Int_Tables_number   1
_cell_volume   257.755
_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
  Mg  Mg0  1  0.742  0.742  0.750  1.0
  Mn  Mn1  1  0.937  0.937  0.250  1.0
  V  V2  1  0.193  0.603  0.781  1.0
  V  V3  1  0.391  0.794  0.291  1.0
  V  V4  1  0.603  0.193  0.719  1.0
  V  V5  1  0.793  0.391  0.209  1.0
  O  O6  1  0.996  0.752  0.641  1.0
  O  O7  1  0.088  0.367  0.808  1.0
  O  O8  1  0.237  0.971  0.204  1.0
  O  O9  1  0.385  0.655  0.601  1.0
  O  O10  1  0.367  0.088  0.692  1.0
  O  O11  1  0.332  0.638  0.080  1.0
  O  O12  1  0.655  0.385  0.899  1.0
  O  O13  1  0.646  0.891  0.351  1.0
  O  O14  1  0.638  0.332  0.420  1.0
  O  O15  1  0.752  0.996  0.859  1.0
  O  O16  1  0.891  0.646  0.149  1.0
  O  O17  1  0.971  0.237  0.296  1.0
[/CIF]
.