The compound described by BiMgVO5 crystallizes in the monoclinic P2_1/c space group. Mg(1) is bonded to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms to form MgO6 octahedra that share corners with four equivalent V(1)O4 tetrahedra and  an edgeedge with one Mg(1)O6 octahedra. V(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form VO4 tetrahedra that share corners with four equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-50°. Bi(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one V(1), and one Bi(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(1), one V(1), and one Bi(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Mg(1), one V(1), and one Bi(1) atom. In the fourth O site, O(4) is bonded to two equivalent Mg(1) and two equivalent Bi(1) atoms to form edge-sharing OMg2Bi2 tetrahedra. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Mg(1), one V(1), and one Bi(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgVBiO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.711
_cell_length_b   5.402
_cell_length_c   8.005
_cell_angle_alpha   67.253
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   466.967
_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  0.079  0.550  0.823  1.0
  Mg  Mg1  1  0.921  0.450  0.177  1.0
  Mg  Mg2  1  0.579  0.450  0.677  1.0
  Mg  Mg3  1  0.421  0.550  0.323  1.0
  V  V4  1  0.352  0.187  0.029  1.0
  V  V5  1  0.648  0.813  0.971  1.0
  V  V6  1  0.852  0.813  0.471  1.0
  V  V7  1  0.148  0.187  0.529  1.0
  Bi  Bi8  1  0.905  0.059  0.824  1.0
  Bi  Bi9  1  0.095  0.941  0.176  1.0
  Bi  Bi10  1  0.595  0.059  0.324  1.0
  Bi  Bi11  1  0.405  0.941  0.676  1.0
  O  O12  1  0.928  0.752  0.672  1.0
  O  O13  1  0.068  0.297  0.674  1.0
  O  O14  1  0.825  0.151  0.363  1.0
  O  O15  1  0.473  0.759  0.486  1.0
  O  O16  1  0.714  0.675  0.516  1.0
  O  O17  1  0.786  0.675  0.016  1.0
  O  O18  1  0.432  0.297  0.174  1.0
  O  O19  1  0.568  0.703  0.826  1.0
  O  O20  1  0.527  0.241  0.514  1.0
  O  O21  1  0.428  0.248  0.828  1.0
  O  O22  1  0.286  0.325  0.484  1.0
  O  O23  1  0.072  0.248  0.328  1.0
  O  O24  1  0.572  0.752  0.172  1.0
  O  O25  1  0.214  0.325  0.984  1.0
  O  O26  1  0.973  0.241  0.014  1.0
  O  O27  1  0.027  0.759  0.986  1.0
  O  O28  1  0.175  0.849  0.637  1.0
  O  O29  1  0.932  0.703  0.326  1.0
  O  O30  1  0.325  0.849  0.137  1.0
  O  O31  1  0.675  0.151  0.863  1.0
[/CIF]
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The compound described by BiMgVO5 crystallizes in the monoclinic P2_1/c space group. Mg(1) is bonded to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms to form MgO6 octahedra that share corners with four equivalent V(1)O4 tetrahedra and  an edgeedge with one Mg(1)O6 octahedra. V(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form VO4 tetrahedra that share corners with four equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-50°. Bi(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one V(1), and one Bi(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(1), one V(1), and one Bi(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Mg(1), one V(1), and one Bi(1) atom. In the fourth O site, O(4) is bonded to two equivalent Mg(1) and two equivalent Bi(1) atoms to form edge-sharing OMg2Bi2 tetrahedra. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Mg(1), one V(1), and one Bi(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgVBiO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.711
_cell_length_b   5.402
_cell_length_c   8.005
_cell_angle_alpha   67.253
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   466.967
_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  0.079  0.550  0.823  1.0
  Mg  Mg1  1  0.921  0.450  0.177  1.0
  Mg  Mg2  1  0.579  0.450  0.677  1.0
  Mg  Mg3  1  0.421  0.550  0.323  1.0
  V  V4  1  0.352  0.187  0.029  1.0
  V  V5  1  0.648  0.813  0.971  1.0
  V  V6  1  0.852  0.813  0.471  1.0
  V  V7  1  0.148  0.187  0.529  1.0
  Bi  Bi8  1  0.905  0.059  0.824  1.0
  Bi  Bi9  1  0.095  0.941  0.176  1.0
  Bi  Bi10  1  0.595  0.059  0.324  1.0
  Bi  Bi11  1  0.405  0.941  0.676  1.0
  O  O12  1  0.928  0.752  0.672  1.0
  O  O13  1  0.068  0.297  0.674  1.0
  O  O14  1  0.825  0.151  0.363  1.0
  O  O15  1  0.473  0.759  0.486  1.0
  O  O16  1  0.714  0.675  0.516  1.0
  O  O17  1  0.786  0.675  0.016  1.0
  O  O18  1  0.432  0.297  0.174  1.0
  O  O19  1  0.568  0.703  0.826  1.0
  O  O20  1  0.527  0.241  0.514  1.0
  O  O21  1  0.428  0.248  0.828  1.0
  O  O22  1  0.286  0.325  0.484  1.0
  O  O23  1  0.072  0.248  0.328  1.0
  O  O24  1  0.572  0.752  0.172  1.0
  O  O25  1  0.214  0.325  0.984  1.0
  O  O26  1  0.973  0.241  0.014  1.0
  O  O27  1  0.027  0.759  0.986  1.0
  O  O28  1  0.175  0.849  0.637  1.0
  O  O29  1  0.932  0.703  0.326  1.0
  O  O30  1  0.325  0.849  0.137  1.0
  O  O31  1  0.675  0.151  0.863  1.0
[/CIF]
.