The crystal structure described by MgV2Bi2(PbO5)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded to two equivalent O(5) and two equivalent O(6) atoms to form distorted MgO4 tetrahedra that share edges with two equivalent V(1)O4 tetrahedra. V(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form VO4 tetrahedra that share  an edgeedge with one Mg(1)O4 tetrahedra. Pb(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(4), and one O(6) atom. Bi(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(5) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Pb(1) and two equivalent Bi(1) atoms to form edge-sharing OBi2Pb2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Pb(1) and two equivalent Bi(1) atoms to form edge-sharing OBi2Pb2 tetrahedra. In the third O site, O(3) is bonded in a distorted linear geometry to one V(1) and one Bi(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one V(1), one Pb(1), and one Bi(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one V(1), and one Bi(1) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Mg(1), one V(1), and one Pb(1) atom. is represented by the CIF card [CIF]
data_MgV2Bi2(PbO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.115
_cell_length_b   7.233
_cell_length_c   7.628
_cell_angle_alpha   107.286
_cell_angle_beta   113.632
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   292.408
_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  0.114  0.500  0.000  1.0
  V  V1  1  0.136  0.659  0.379  1.0
  V  V2  1  0.758  0.341  0.621  1.0
  Bi  Bi3  1  0.620  0.253  0.042  1.0
  Bi  Bi4  1  0.578  0.747  0.958  1.0
  Pb  Pb5  1  0.241  0.061  0.282  1.0
  Pb  Pb6  1  0.959  0.939  0.718  1.0
  O  O7  1  0.352  0.000  0.000  1.0
  O  O8  1  0.806  0.000  0.000  1.0
  O  O9  1  0.656  0.315  0.359  1.0
  O  O10  1  0.297  0.685  0.641  1.0
  O  O11  1  0.575  0.193  0.669  1.0
  O  O12  1  0.906  0.807  0.331  1.0
  O  O13  1  0.832  0.595  0.818  1.0
  O  O14  1  0.015  0.405  0.182  1.0
  O  O15  1  0.065  0.276  0.759  1.0
  O  O16  1  0.306  0.724  0.241  1.0
[/CIF]
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The crystal structure described by MgV2Bi2(PbO5)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded to two equivalent O(5) and two equivalent O(6) atoms to form distorted MgO4 tetrahedra that share edges with two equivalent V(1)O4 tetrahedra. V(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form VO4 tetrahedra that share  an edgeedge with one Mg(1)O4 tetrahedra. Pb(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(4), and one O(6) atom. Bi(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(5) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Pb(1) and two equivalent Bi(1) atoms to form edge-sharing OBi2Pb2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Pb(1) and two equivalent Bi(1) atoms to form edge-sharing OBi2Pb2 tetrahedra. In the third O site, O(3) is bonded in a distorted linear geometry to one V(1) and one Bi(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one V(1), one Pb(1), and one Bi(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one V(1), and one Bi(1) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Mg(1), one V(1), and one Pb(1) atom. is represented by the CIF card [CIF]
data_MgV2Bi2(PbO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.115
_cell_length_b   7.233
_cell_length_c   7.628
_cell_angle_alpha   107.286
_cell_angle_beta   113.632
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   292.408
_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  0.114  0.500  0.000  1.0
  V  V1  1  0.136  0.659  0.379  1.0
  V  V2  1  0.758  0.341  0.621  1.0
  Bi  Bi3  1  0.620  0.253  0.042  1.0
  Bi  Bi4  1  0.578  0.747  0.958  1.0
  Pb  Pb5  1  0.241  0.061  0.282  1.0
  Pb  Pb6  1  0.959  0.939  0.718  1.0
  O  O7  1  0.352  0.000  0.000  1.0
  O  O8  1  0.806  0.000  0.000  1.0
  O  O9  1  0.656  0.315  0.359  1.0
  O  O10  1  0.297  0.685  0.641  1.0
  O  O11  1  0.575  0.193  0.669  1.0
  O  O12  1  0.906  0.807  0.331  1.0
  O  O13  1  0.832  0.595  0.818  1.0
  O  O14  1  0.015  0.405  0.182  1.0
  O  O15  1  0.065  0.276  0.759  1.0
  O  O16  1  0.306  0.724  0.241  1.0
[/CIF]
.