The material described by MgPb2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. Mg(1) is bonded in a 10-coordinate geometry to five equivalent Pb(1) and five equivalent Pb(2) atoms. There are two inequivalent Pb sites. In the first Pb site, Pb(2) is bonded in a 3-coordinate geometry to five equivalent Mg(1) atoms. In the second Pb site, Pb(1) is bonded in a 5-coordinate geometry to five equivalent Mg(1) atoms. is represented by the CIF file [CIF]
data_MgPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.001
_cell_length_b   6.551
_cell_length_c   10.173
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   333.291
_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
  Mg  Mg0  1  0.250  0.650  0.904  1.0
  Mg  Mg1  1  0.750  0.350  0.096  1.0
  Mg  Mg2  1  0.750  0.850  0.404  1.0
  Mg  Mg3  1  0.250  0.150  0.596  1.0
  Pb  Pb4  1  0.250  0.659  0.567  1.0
  Pb  Pb5  1  0.750  0.341  0.433  1.0
  Pb  Pb6  1  0.750  0.841  0.067  1.0
  Pb  Pb7  1  0.250  0.159  0.933  1.0
  Pb  Pb8  1  0.250  0.594  0.227  1.0
  Pb  Pb9  1  0.750  0.406  0.773  1.0
  Pb  Pb10  1  0.750  0.906  0.727  1.0
  Pb  Pb11  1  0.250  0.094  0.273  1.0
[/CIF]
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The material described by MgPb2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. Mg(1) is bonded in a 10-coordinate geometry to five equivalent Pb(1) and five equivalent Pb(2) atoms. There are two inequivalent Pb sites. In the first Pb site, Pb(2) is bonded in a 3-coordinate geometry to five equivalent Mg(1) atoms. In the second Pb site, Pb(1) is bonded in a 5-coordinate geometry to five equivalent Mg(1) atoms. is represented by the CIF file [CIF]
data_MgPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.001
_cell_length_b   6.551
_cell_length_c   10.173
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   333.291
_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
  Mg  Mg0  1  0.250  0.650  0.904  1.0
  Mg  Mg1  1  0.750  0.350  0.096  1.0
  Mg  Mg2  1  0.750  0.850  0.404  1.0
  Mg  Mg3  1  0.250  0.150  0.596  1.0
  Pb  Pb4  1  0.250  0.659  0.567  1.0
  Pb  Pb5  1  0.750  0.341  0.433  1.0
  Pb  Pb6  1  0.750  0.841  0.067  1.0
  Pb  Pb7  1  0.250  0.159  0.933  1.0
  Pb  Pb8  1  0.250  0.594  0.227  1.0
  Pb  Pb9  1  0.750  0.406  0.773  1.0
  Pb  Pb10  1  0.750  0.906  0.727  1.0
  Pb  Pb11  1  0.250  0.094  0.273  1.0
[/CIF]
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