The structure described by MgV2Bi2(PbO5)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 4-coordinate geometry to one O(10), one O(3), 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 corners with three equivalent Bi(2)O5 trigonal bipyramids. In the second V site, V(2) is bonded in a trigonal pyramidal geometry to one O(3), one O(5), one O(7), and one O(9) atom. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(5), one O(8), and one O(9) atom. In the second Pb site, Pb(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(5), and one O(9) atom. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and one O(9) atom. In the second Bi site, Bi(2) is bonded to one O(1), one O(10), one O(2), one O(4), and one O(6) atom to form distorted BiO5 trigonal bipyramids that share corners with three equivalent V(1)O4 tetrahedra. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Pb(1), one Pb(2), one Bi(1), and one Bi(2) atom to form edge-sharing OBi2Pb2 tetrahedra. In the second O site, O(2) is bonded to one Pb(1), one Pb(2), one Bi(1), and one Bi(2) atom to form edge-sharing OBi2Pb2 tetrahedra. In the third O site, O(3) is bonded in a T-shaped geometry to one Mg(1), one V(2), and one Bi(1) atom. In the fourth O site, O(4) is bonded in a linear geometry to one V(1) and one Bi(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one V(2), one Pb(1), one Pb(2), and one Bi(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mg(1), one V(1), and one Bi(2) atom. In the seventh O site, O(7) is bonded in an L-shaped geometry to one Mg(1) and one V(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one V(1) and one Pb(1) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one V(2), one Pb(1), one Pb(2), 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 Bi(2) atom. is represented by the CIF card [CIF]
data_MgV2Bi2(PbO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.004
_cell_length_b   7.739
_cell_length_c   7.090
_cell_angle_alpha   103.504
_cell_angle_beta   115.299
_cell_angle_gamma   90.137
_symmetry_Int_Tables_number   1
_cell_volume   287.649
_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  0.711  0.602  0.418  1.0
  V  V1  1  0.163  0.617  0.325  1.0
  V  V2  1  0.837  0.364  0.674  1.0
  Bi  Bi3  1  0.500  0.234  0.003  1.0
  Bi  Bi4  1  0.489  0.769  0.981  1.0
  Pb  Pb5  1  0.169  0.137  0.342  1.0
  Pb  Pb6  1  0.867  0.968  0.740  1.0
  O  O7  1  0.279  0.010  0.021  1.0
  O  O8  1  0.739  0.010  0.021  1.0
  O  O9  1  0.685  0.336  0.374  1.0
  O  O10  1  0.311  0.707  0.612  1.0
  O  O11  1  0.617  0.225  0.712  1.0
  O  O12  1  0.856  0.697  0.253  1.0
  O  O13  1  0.874  0.602  0.737  1.0
  O  O14  1  0.101  0.378  0.204  1.0
  O  O15  1  0.093  0.223  0.709  1.0
  O  O16  1  0.399  0.695  0.253  1.0
[/CIF]
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The structure described by MgV2Bi2(PbO5)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 4-coordinate geometry to one O(10), one O(3), 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 corners with three equivalent Bi(2)O5 trigonal bipyramids. In the second V site, V(2) is bonded in a trigonal pyramidal geometry to one O(3), one O(5), one O(7), and one O(9) atom. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(5), one O(8), and one O(9) atom. In the second Pb site, Pb(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(5), and one O(9) atom. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and one O(9) atom. In the second Bi site, Bi(2) is bonded to one O(1), one O(10), one O(2), one O(4), and one O(6) atom to form distorted BiO5 trigonal bipyramids that share corners with three equivalent V(1)O4 tetrahedra. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Pb(1), one Pb(2), one Bi(1), and one Bi(2) atom to form edge-sharing OBi2Pb2 tetrahedra. In the second O site, O(2) is bonded to one Pb(1), one Pb(2), one Bi(1), and one Bi(2) atom to form edge-sharing OBi2Pb2 tetrahedra. In the third O site, O(3) is bonded in a T-shaped geometry to one Mg(1), one V(2), and one Bi(1) atom. In the fourth O site, O(4) is bonded in a linear geometry to one V(1) and one Bi(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one V(2), one Pb(1), one Pb(2), and one Bi(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mg(1), one V(1), and one Bi(2) atom. In the seventh O site, O(7) is bonded in an L-shaped geometry to one Mg(1) and one V(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one V(1) and one Pb(1) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one V(2), one Pb(1), one Pb(2), 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 Bi(2) atom. is represented by the CIF card [CIF]
data_MgV2Bi2(PbO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.004
_cell_length_b   7.739
_cell_length_c   7.090
_cell_angle_alpha   103.504
_cell_angle_beta   115.299
_cell_angle_gamma   90.137
_symmetry_Int_Tables_number   1
_cell_volume   287.649
_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  0.711  0.602  0.418  1.0
  V  V1  1  0.163  0.617  0.325  1.0
  V  V2  1  0.837  0.364  0.674  1.0
  Bi  Bi3  1  0.500  0.234  0.003  1.0
  Bi  Bi4  1  0.489  0.769  0.981  1.0
  Pb  Pb5  1  0.169  0.137  0.342  1.0
  Pb  Pb6  1  0.867  0.968  0.740  1.0
  O  O7  1  0.279  0.010  0.021  1.0
  O  O8  1  0.739  0.010  0.021  1.0
  O  O9  1  0.685  0.336  0.374  1.0
  O  O10  1  0.311  0.707  0.612  1.0
  O  O11  1  0.617  0.225  0.712  1.0
  O  O12  1  0.856  0.697  0.253  1.0
  O  O13  1  0.874  0.602  0.737  1.0
  O  O14  1  0.101  0.378  0.204  1.0
  O  O15  1  0.093  0.223  0.709  1.0
  O  O16  1  0.399  0.695  0.253  1.0
[/CIF]
.