The crystal structure described by MgV2Bi2(PbO5)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 5-coordinate geometry to one Pb(1), one O(1), one O(10), one O(2), one O(6), and one O(7) atom. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(10), one O(4), one O(6), and one O(8) atom to form VO4 tetrahedra that share  a cornercorner with one Bi(1)O5 square pyramid. In the second V site, V(2) is bonded to one O(3), one O(5), one O(7), and one O(9) atom to form VO4 tetrahedra that share corners with two equivalent Bi(1)O5 square pyramids. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one Mg(1), one O(3), one O(4), one O(5), one O(8), and one O(9) atom. In the second Pb site, Pb(2) is bonded in a distorted T-shaped geometry to one O(10), one O(2), and one O(5) atom. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to one O(1), one O(2), one O(3), one O(8), and one O(9) atom to form distorted BiO5 square pyramids that share  a cornercorner with one V(1)O4 tetrahedra and corners with two equivalent V(2)O4 tetrahedra. In the second Bi site, Bi(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(4), one O(6), and one O(7) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Bi(1), and one Bi(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one Pb(2), one Bi(1), and one Bi(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one V(2), one Pb(1), and one Bi(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one V(1), one Pb(1), and one Bi(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one V(2), one Pb(1), and one Pb(2) 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 Bi(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Mg(1), one V(2), and one Bi(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one V(1), one Pb(1), and one Bi(1) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one V(2), one Pb(1), and one Bi(1) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Mg(1), one V(1), and one Pb(2) atom. is represented by the CIF card [CIF]
data_MgV2Bi2(PbO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.999
_cell_length_b   7.504
_cell_length_c   7.609
_cell_angle_alpha   111.270
_cell_angle_beta   117.578
_cell_angle_gamma   83.576
_symmetry_Int_Tables_number   1
_cell_volume   282.290
_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  0.063  0.861  0.085  1.0
  V  V1  1  0.179  0.626  0.329  1.0
  V  V2  1  0.827  0.368  0.687  1.0
  Bi  Bi3  1  0.448  0.232  0.048  1.0
  Bi  Bi4  1  0.528  0.729  0.948  1.0
  Pb  Pb5  1  0.160  0.246  0.442  1.0
  Pb  Pb6  1  0.774  0.907  0.621  1.0
  O  O7  1  0.275  0.969  0.004  1.0
  O  O8  1  0.706  0.963  0.949  1.0
  O  O9  1  0.744  0.328  0.407  1.0
  O  O10  1  0.268  0.585  0.579  1.0
  O  O11  1  0.613  0.218  0.685  1.0
  O  O12  1  0.914  0.780  0.264  1.0
  O  O13  1  0.882  0.620  0.838  1.0
  O  O14  1  0.154  0.383  0.152  1.0
  O  O15  1  0.116  0.232  0.726  1.0
  O  O16  1  0.384  0.767  0.301  1.0
[/CIF]
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The crystal structure described by MgV2Bi2(PbO5)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 5-coordinate geometry to one Pb(1), one O(1), one O(10), one O(2), one O(6), and one O(7) atom. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(10), one O(4), one O(6), and one O(8) atom to form VO4 tetrahedra that share  a cornercorner with one Bi(1)O5 square pyramid. In the second V site, V(2) is bonded to one O(3), one O(5), one O(7), and one O(9) atom to form VO4 tetrahedra that share corners with two equivalent Bi(1)O5 square pyramids. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one Mg(1), one O(3), one O(4), one O(5), one O(8), and one O(9) atom. In the second Pb site, Pb(2) is bonded in a distorted T-shaped geometry to one O(10), one O(2), and one O(5) atom. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to one O(1), one O(2), one O(3), one O(8), and one O(9) atom to form distorted BiO5 square pyramids that share  a cornercorner with one V(1)O4 tetrahedra and corners with two equivalent V(2)O4 tetrahedra. In the second Bi site, Bi(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(4), one O(6), and one O(7) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Bi(1), and one Bi(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one Pb(2), one Bi(1), and one Bi(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one V(2), one Pb(1), and one Bi(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one V(1), one Pb(1), and one Bi(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one V(2), one Pb(1), and one Pb(2) 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 Bi(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Mg(1), one V(2), and one Bi(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one V(1), one Pb(1), and one Bi(1) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one V(2), one Pb(1), and one Bi(1) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Mg(1), one V(1), and one Pb(2) atom. is represented by the CIF card [CIF]
data_MgV2Bi2(PbO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.999
_cell_length_b   7.504
_cell_length_c   7.609
_cell_angle_alpha   111.270
_cell_angle_beta   117.578
_cell_angle_gamma   83.576
_symmetry_Int_Tables_number   1
_cell_volume   282.290
_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  0.063  0.861  0.085  1.0
  V  V1  1  0.179  0.626  0.329  1.0
  V  V2  1  0.827  0.368  0.687  1.0
  Bi  Bi3  1  0.448  0.232  0.048  1.0
  Bi  Bi4  1  0.528  0.729  0.948  1.0
  Pb  Pb5  1  0.160  0.246  0.442  1.0
  Pb  Pb6  1  0.774  0.907  0.621  1.0
  O  O7  1  0.275  0.969  0.004  1.0
  O  O8  1  0.706  0.963  0.949  1.0
  O  O9  1  0.744  0.328  0.407  1.0
  O  O10  1  0.268  0.585  0.579  1.0
  O  O11  1  0.613  0.218  0.685  1.0
  O  O12  1  0.914  0.780  0.264  1.0
  O  O13  1  0.882  0.620  0.838  1.0
  O  O14  1  0.154  0.383  0.152  1.0
  O  O15  1  0.116  0.232  0.726  1.0
  O  O16  1  0.384  0.767  0.301  1.0
[/CIF]
.