The crystal structure described by MgV3O7 crystallizes in the orthorhombic Pnma space group. Mg(1) is bonded in a 7-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(4), two equivalent O(1), and two equivalent O(2) atoms to form distorted edge-sharing VO5 trigonal bipyramids. In the second V site, V(2) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one V(2) atom. In the second O site, O(4) is bonded in a bent 150 degrees geometry to one Mg(1) and one V(1) atom. In the third O site, O(1) is bonded to one Mg(1), one V(2), and two equivalent V(1) atoms to form a mixture of distorted corner and edge-sharing OMgV3 tetrahedra. In the fourth O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one V(2), and two equivalent V(1) atoms. is represented by the CIF file [CIF]
data_MgV3O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.333
_cell_length_b   10.231
_cell_length_c   10.234
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   558.389
_cell_formula_units_Z   4
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  0.845  0.078  0.250  1.0
  Mg  Mg1  1  0.345  0.422  0.750  1.0
  Mg  Mg2  1  0.155  0.922  0.750  1.0
  Mg  Mg3  1  0.655  0.578  0.250  1.0
  V  V4  1  0.203  0.683  0.973  1.0
  V  V5  1  0.703  0.817  0.027  1.0
  V  V6  1  0.797  0.317  0.473  1.0
  V  V7  1  0.297  0.183  0.527  1.0
  V  V8  1  0.192  0.782  0.250  1.0
  V  V9  1  0.692  0.718  0.750  1.0
  V  V10  1  0.808  0.218  0.750  1.0
  V  V11  1  0.308  0.282  0.250  1.0
  V  V12  1  0.703  0.817  0.473  1.0
  V  V13  1  0.203  0.683  0.527  1.0
  V  V14  1  0.297  0.183  0.973  1.0
  V  V15  1  0.797  0.317  0.027  1.0
  O  O16  1  0.557  0.288  0.879  1.0
  O  O17  1  0.057  0.212  0.121  1.0
  O  O18  1  0.443  0.712  0.379  1.0
  O  O19  1  0.943  0.788  0.621  1.0
  O  O20  1  0.443  0.712  0.121  1.0
  O  O21  1  0.943  0.788  0.879  1.0
  O  O22  1  0.557  0.288  0.621  1.0
  O  O23  1  0.057  0.212  0.379  1.0
  O  O24  1  0.041  0.287  0.882  1.0
  O  O25  1  0.541  0.213  0.118  1.0
  O  O26  1  0.959  0.713  0.382  1.0
  O  O27  1  0.459  0.787  0.618  1.0
  O  O28  1  0.959  0.713  0.118  1.0
  O  O29  1  0.459  0.787  0.882  1.0
  O  O30  1  0.041  0.287  0.618  1.0
  O  O31  1  0.541  0.213  0.382  1.0
  O  O32  1  0.334  0.444  0.250  1.0
  O  O33  1  0.834  0.056  0.750  1.0
  O  O34  1  0.666  0.556  0.750  1.0
  O  O35  1  0.166  0.944  0.250  1.0
  O  O36  1  0.279  0.036  0.596  1.0
  O  O37  1  0.779  0.464  0.404  1.0
  O  O38  1  0.721  0.964  0.096  1.0
  O  O39  1  0.221  0.536  0.904  1.0
  O  O40  1  0.721  0.964  0.404  1.0
  O  O41  1  0.221  0.536  0.596  1.0
  O  O42  1  0.279  0.036  0.904  1.0
  O  O43  1  0.779  0.464  0.096  1.0
[/CIF]
.
The crystal structure described by MgV3O7 crystallizes in the orthorhombic Pnma space group. Mg(1) is bonded in a 7-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(4), two equivalent O(1), and two equivalent O(2) atoms to form distorted edge-sharing VO5 trigonal bipyramids. In the second V site, V(2) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one V(2) atom. In the second O site, O(4) is bonded in a bent 150 degrees geometry to one Mg(1) and one V(1) atom. In the third O site, O(1) is bonded to one Mg(1), one V(2), and two equivalent V(1) atoms to form a mixture of distorted corner and edge-sharing OMgV3 tetrahedra. In the fourth O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one V(2), and two equivalent V(1) atoms. is represented by the CIF file [CIF]
data_MgV3O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.333
_cell_length_b   10.231
_cell_length_c   10.234
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   558.389
_cell_formula_units_Z   4
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  0.845  0.078  0.250  1.0
  Mg  Mg1  1  0.345  0.422  0.750  1.0
  Mg  Mg2  1  0.155  0.922  0.750  1.0
  Mg  Mg3  1  0.655  0.578  0.250  1.0
  V  V4  1  0.203  0.683  0.973  1.0
  V  V5  1  0.703  0.817  0.027  1.0
  V  V6  1  0.797  0.317  0.473  1.0
  V  V7  1  0.297  0.183  0.527  1.0
  V  V8  1  0.192  0.782  0.250  1.0
  V  V9  1  0.692  0.718  0.750  1.0
  V  V10  1  0.808  0.218  0.750  1.0
  V  V11  1  0.308  0.282  0.250  1.0
  V  V12  1  0.703  0.817  0.473  1.0
  V  V13  1  0.203  0.683  0.527  1.0
  V  V14  1  0.297  0.183  0.973  1.0
  V  V15  1  0.797  0.317  0.027  1.0
  O  O16  1  0.557  0.288  0.879  1.0
  O  O17  1  0.057  0.212  0.121  1.0
  O  O18  1  0.443  0.712  0.379  1.0
  O  O19  1  0.943  0.788  0.621  1.0
  O  O20  1  0.443  0.712  0.121  1.0
  O  O21  1  0.943  0.788  0.879  1.0
  O  O22  1  0.557  0.288  0.621  1.0
  O  O23  1  0.057  0.212  0.379  1.0
  O  O24  1  0.041  0.287  0.882  1.0
  O  O25  1  0.541  0.213  0.118  1.0
  O  O26  1  0.959  0.713  0.382  1.0
  O  O27  1  0.459  0.787  0.618  1.0
  O  O28  1  0.959  0.713  0.118  1.0
  O  O29  1  0.459  0.787  0.882  1.0
  O  O30  1  0.041  0.287  0.618  1.0
  O  O31  1  0.541  0.213  0.382  1.0
  O  O32  1  0.334  0.444  0.250  1.0
  O  O33  1  0.834  0.056  0.750  1.0
  O  O34  1  0.666  0.556  0.750  1.0
  O  O35  1  0.166  0.944  0.250  1.0
  O  O36  1  0.279  0.036  0.596  1.0
  O  O37  1  0.779  0.464  0.404  1.0
  O  O38  1  0.721  0.964  0.096  1.0
  O  O39  1  0.221  0.536  0.904  1.0
  O  O40  1  0.721  0.964  0.404  1.0
  O  O41  1  0.221  0.536  0.596  1.0
  O  O42  1  0.279  0.036  0.904  1.0
  O  O43  1  0.779  0.464  0.096  1.0
[/CIF]
.