The material structure described by MgV2(BiO4)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form distorted MgO4 trigonal pyramids that share corners with two equivalent V(1)O4 tetrahedra and  an edgeedge with one V(2)O4 trigonal pyramid. There are two inequivalent V sites. In the first V site, V(1) is bonded to two equivalent O(2) and two equivalent O(3) atoms to form distorted VO4 tetrahedra that share corners with two equivalent Mg(1)O4 trigonal pyramids. In the second V site, V(2) is bonded to two equivalent O(1) and two equivalent O(4) atoms to form distorted VO4 trigonal pyramids that share  an edgeedge with one Mg(1)O4 trigonal pyramid. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(4) atoms. In the second Bi site, Bi(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one V(2) and one Bi(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one V(1), one Bi(1), and one Bi(2) 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(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one V(2), one Bi(1), and one Bi(2) atom. is represented by the CIF card [CIF]
data_MgV2(BiO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.337
_cell_length_b   6.337
_cell_length_c   6.429
_cell_angle_alpha   105.624
_cell_angle_beta   105.625
_cell_angle_gamma   117.055
_symmetry_Int_Tables_number   1
_cell_volume   196.969
_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  0.862  0.138  0.250  1.0
  V  V1  1  0.371  0.629  0.750  1.0
  V  V2  1  0.599  0.401  0.250  1.0
  Bi  Bi3  1  0.168  0.832  0.250  1.0
  Bi  Bi4  1  0.886  0.114  0.750  1.0
  O  O5  1  0.250  0.207  0.063  1.0
  O  O6  1  0.207  0.619  0.943  1.0
  O  O7  1  0.381  0.793  0.557  1.0
  O  O8  1  0.170  0.271  0.551  1.0
  O  O9  1  0.793  0.751  0.437  1.0
  O  O10  1  0.618  0.169  0.382  1.0
  O  O11  1  0.831  0.382  0.118  1.0
  O  O12  1  0.729  0.830  0.949  1.0
[/CIF]
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The material structure described by MgV2(BiO4)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form distorted MgO4 trigonal pyramids that share corners with two equivalent V(1)O4 tetrahedra and  an edgeedge with one V(2)O4 trigonal pyramid. There are two inequivalent V sites. In the first V site, V(1) is bonded to two equivalent O(2) and two equivalent O(3) atoms to form distorted VO4 tetrahedra that share corners with two equivalent Mg(1)O4 trigonal pyramids. In the second V site, V(2) is bonded to two equivalent O(1) and two equivalent O(4) atoms to form distorted VO4 trigonal pyramids that share  an edgeedge with one Mg(1)O4 trigonal pyramid. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 4-coordinate geometry to two equivalent O(2) and two equivalent O(4) atoms. In the second Bi site, Bi(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one V(2) and one Bi(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one V(1), one Bi(1), and one Bi(2) 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(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one V(2), one Bi(1), and one Bi(2) atom. is represented by the CIF card [CIF]
data_MgV2(BiO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.337
_cell_length_b   6.337
_cell_length_c   6.429
_cell_angle_alpha   105.624
_cell_angle_beta   105.625
_cell_angle_gamma   117.055
_symmetry_Int_Tables_number   1
_cell_volume   196.969
_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  0.862  0.138  0.250  1.0
  V  V1  1  0.371  0.629  0.750  1.0
  V  V2  1  0.599  0.401  0.250  1.0
  Bi  Bi3  1  0.168  0.832  0.250  1.0
  Bi  Bi4  1  0.886  0.114  0.750  1.0
  O  O5  1  0.250  0.207  0.063  1.0
  O  O6  1  0.207  0.619  0.943  1.0
  O  O7  1  0.381  0.793  0.557  1.0
  O  O8  1  0.170  0.271  0.551  1.0
  O  O9  1  0.793  0.751  0.437  1.0
  O  O10  1  0.618  0.169  0.382  1.0
  O  O11  1  0.831  0.382  0.118  1.0
  O  O12  1  0.729  0.830  0.949  1.0
[/CIF]
.