The material structure described by Ba2Pb is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 3-coordinate geometry to five equivalent Pb(1) atoms. In the second Ba site, Ba(2) is bonded to four equivalent Pb(1) atoms to form a mixture of corner and edge-sharing BaPb4 tetrahedra. Pb(1) is bonded in a 9-coordinate geometry to four equivalent Ba(2) and five equivalent Ba(1) atoms. is represented by the CIF card [CIF]
data_Ba2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.755
_cell_length_b   8.901
_cell_length_c   10.743
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   550.318
_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
  Ba  Ba0  1  0.250  0.519  0.821  1.0
  Ba  Ba1  1  0.750  0.481  0.179  1.0
  Ba  Ba2  1  0.250  0.019  0.679  1.0
  Ba  Ba3  1  0.750  0.981  0.321  1.0
  Ba  Ba4  1  0.750  0.846  0.921  1.0
  Ba  Ba5  1  0.250  0.154  0.079  1.0
  Ba  Ba6  1  0.750  0.346  0.579  1.0
  Ba  Ba7  1  0.250  0.654  0.421  1.0
  Pb  Pb8  1  0.250  0.749  0.101  1.0
  Pb  Pb9  1  0.750  0.251  0.899  1.0
  Pb  Pb10  1  0.250  0.249  0.399  1.0
  Pb  Pb11  1  0.750  0.751  0.601  1.0
[/CIF]
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The material structure described by Ba2Pb is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 3-coordinate geometry to five equivalent Pb(1) atoms. In the second Ba site, Ba(2) is bonded to four equivalent Pb(1) atoms to form a mixture of corner and edge-sharing BaPb4 tetrahedra. Pb(1) is bonded in a 9-coordinate geometry to four equivalent Ba(2) and five equivalent Ba(1) atoms. is represented by the CIF card [CIF]
data_Ba2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.755
_cell_length_b   8.901
_cell_length_c   10.743
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   550.318
_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
  Ba  Ba0  1  0.250  0.519  0.821  1.0
  Ba  Ba1  1  0.750  0.481  0.179  1.0
  Ba  Ba2  1  0.250  0.019  0.679  1.0
  Ba  Ba3  1  0.750  0.981  0.321  1.0
  Ba  Ba4  1  0.750  0.846  0.921  1.0
  Ba  Ba5  1  0.250  0.154  0.079  1.0
  Ba  Ba6  1  0.750  0.346  0.579  1.0
  Ba  Ba7  1  0.250  0.654  0.421  1.0
  Pb  Pb8  1  0.250  0.749  0.101  1.0
  Pb  Pb9  1  0.750  0.251  0.899  1.0
  Pb  Pb10  1  0.250  0.249  0.399  1.0
  Pb  Pb11  1  0.750  0.751  0.601  1.0
[/CIF]
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