The crystal structure described by Mg2PbO4 crystallizes in the orthorhombic Pbam space group. Mg(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. Pb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form edge-sharing PbO6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Mg(1) and one Pb(1) atom to form a mixture of distorted corner and edge-sharing OMg4Pb square pyramids. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Mg(1) and two equivalent Pb(1) atoms. is represented by the CIF file [CIF]
data_Mg2PbO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.187
_cell_length_b   5.363
_cell_length_c   9.773
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   167.023
_cell_formula_units_Z   2
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  0.000  0.054  0.317  1.0
  Mg  Mg1  1  0.000  0.446  0.817  1.0
  Mg  Mg2  1  0.000  0.554  0.183  1.0
  Mg  Mg3  1  0.000  0.946  0.683  1.0
  Pb  Pb4  1  0.500  0.000  0.000  1.0
  Pb  Pb5  1  0.500  0.500  0.500  1.0
  O  O6  1  0.500  0.174  0.797  1.0
  O  O7  1  0.000  0.265  0.047  1.0
  O  O8  1  0.000  0.235  0.547  1.0
  O  O9  1  0.500  0.326  0.297  1.0
  O  O10  1  0.500  0.674  0.703  1.0
  O  O11  1  0.000  0.765  0.453  1.0
  O  O12  1  0.000  0.735  0.953  1.0
  O  O13  1  0.500  0.826  0.203  1.0
[/CIF]
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The crystal structure described by Mg2PbO4 crystallizes in the orthorhombic Pbam space group. Mg(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. Pb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form edge-sharing PbO6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Mg(1) and one Pb(1) atom to form a mixture of distorted corner and edge-sharing OMg4Pb square pyramids. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Mg(1) and two equivalent Pb(1) atoms. is represented by the CIF file [CIF]
data_Mg2PbO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.187
_cell_length_b   5.363
_cell_length_c   9.773
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   167.023
_cell_formula_units_Z   2
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  0.000  0.054  0.317  1.0
  Mg  Mg1  1  0.000  0.446  0.817  1.0
  Mg  Mg2  1  0.000  0.554  0.183  1.0
  Mg  Mg3  1  0.000  0.946  0.683  1.0
  Pb  Pb4  1  0.500  0.000  0.000  1.0
  Pb  Pb5  1  0.500  0.500  0.500  1.0
  O  O6  1  0.500  0.174  0.797  1.0
  O  O7  1  0.000  0.265  0.047  1.0
  O  O8  1  0.000  0.235  0.547  1.0
  O  O9  1  0.500  0.326  0.297  1.0
  O  O10  1  0.500  0.674  0.703  1.0
  O  O11  1  0.000  0.765  0.453  1.0
  O  O12  1  0.000  0.735  0.953  1.0
  O  O13  1  0.500  0.826  0.203  1.0
[/CIF]
.