The crystal structure described by Mg2WPb is Zintl Phase-derived structured and crystallizes in the cubic F-43m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to four equivalent W(1) atoms to form distorted MgW4 tetrahedra that share corners with four equivalent Pb(1)Mg4W4 tetrahedra, corners with twelve equivalent Mg(2)Pb4W6 tetrahedra, corners with twelve equivalent Mg(1)W4 tetrahedra, edges with six equivalent Pb(1)Mg4W4 tetrahedra, and faces with four equivalent Mg(2)Pb4W6 tetrahedra. In the second Mg site, Mg(2) is bonded to six equivalent W(1) and four equivalent Pb(1) atoms to form distorted MgPb4W6 tetrahedra that share corners with four equivalent W(1)Mg10Pb4 tetrahedra, corners with six equivalent Mg(2)Pb4W6 tetrahedra, corners with twelve equivalent Mg(1)W4 tetrahedra, corners with twelve equivalent Pb(1)Mg4W4 tetrahedra, edges with six equivalent W(1)Mg10Pb4 tetrahedra, faces with four equivalent Mg(1)W4 tetrahedra, faces with four equivalent Pb(1)Mg4W4 tetrahedra, and faces with twelve equivalent Mg(2)Pb4W6 tetrahedra. W(1) is bonded to four equivalent Mg(1), six equivalent Mg(2), and four equivalent Pb(1) atoms to form distorted WMg10Pb4 tetrahedra that share corners with four equivalent Mg(2)Pb4W6 tetrahedra, corners with six equivalent W(1)Mg10Pb4 tetrahedra, corners with twelve equivalent Pb(1)Mg4W4 tetrahedra, edges with six equivalent Mg(2)Pb4W6 tetrahedra, faces with four equivalent Pb(1)Mg4W4 tetrahedra, and faces with twelve equivalent W(1)Mg10Pb4 tetrahedra. Pb(1) is bonded to four equivalent Mg(2) and four equivalent W(1) atoms to form distorted PbMg4W4 tetrahedra that share corners with four equivalent Mg(1)W4 tetrahedra, corners with twelve equivalent Mg(2)Pb4W6 tetrahedra, corners with twelve equivalent W(1)Mg10Pb4 tetrahedra, edges with six equivalent Mg(1)W4 tetrahedra, edges with twelve equivalent Pb(1)Mg4W4 tetrahedra, faces with four equivalent Mg(2)Pb4W6 tetrahedra, and faces with four equivalent W(1)Mg10Pb4 tetrahedra. is represented by the CIF card [CIF]
data_Mg2PbW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.874
_cell_length_b   4.874
_cell_length_c   4.874
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   81.883
_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  0.250  0.250  0.250  1.0
  Mg  Mg1  1  0.500  0.500  0.500  1.0
  Pb  Pb2  1  0.750  0.750  0.750  1.0
  W  W3  1  0.000  0.000  0.000  1.0
[/CIF]
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The crystal structure described by Mg2WPb is Zintl Phase-derived structured and crystallizes in the cubic F-43m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to four equivalent W(1) atoms to form distorted MgW4 tetrahedra that share corners with four equivalent Pb(1)Mg4W4 tetrahedra, corners with twelve equivalent Mg(2)Pb4W6 tetrahedra, corners with twelve equivalent Mg(1)W4 tetrahedra, edges with six equivalent Pb(1)Mg4W4 tetrahedra, and faces with four equivalent Mg(2)Pb4W6 tetrahedra. In the second Mg site, Mg(2) is bonded to six equivalent W(1) and four equivalent Pb(1) atoms to form distorted MgPb4W6 tetrahedra that share corners with four equivalent W(1)Mg10Pb4 tetrahedra, corners with six equivalent Mg(2)Pb4W6 tetrahedra, corners with twelve equivalent Mg(1)W4 tetrahedra, corners with twelve equivalent Pb(1)Mg4W4 tetrahedra, edges with six equivalent W(1)Mg10Pb4 tetrahedra, faces with four equivalent Mg(1)W4 tetrahedra, faces with four equivalent Pb(1)Mg4W4 tetrahedra, and faces with twelve equivalent Mg(2)Pb4W6 tetrahedra. W(1) is bonded to four equivalent Mg(1), six equivalent Mg(2), and four equivalent Pb(1) atoms to form distorted WMg10Pb4 tetrahedra that share corners with four equivalent Mg(2)Pb4W6 tetrahedra, corners with six equivalent W(1)Mg10Pb4 tetrahedra, corners with twelve equivalent Pb(1)Mg4W4 tetrahedra, edges with six equivalent Mg(2)Pb4W6 tetrahedra, faces with four equivalent Pb(1)Mg4W4 tetrahedra, and faces with twelve equivalent W(1)Mg10Pb4 tetrahedra. Pb(1) is bonded to four equivalent Mg(2) and four equivalent W(1) atoms to form distorted PbMg4W4 tetrahedra that share corners with four equivalent Mg(1)W4 tetrahedra, corners with twelve equivalent Mg(2)Pb4W6 tetrahedra, corners with twelve equivalent W(1)Mg10Pb4 tetrahedra, edges with six equivalent Mg(1)W4 tetrahedra, edges with twelve equivalent Pb(1)Mg4W4 tetrahedra, faces with four equivalent Mg(2)Pb4W6 tetrahedra, and faces with four equivalent W(1)Mg10Pb4 tetrahedra. is represented by the CIF card [CIF]
data_Mg2PbW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.874
_cell_length_b   4.874
_cell_length_c   4.874
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   81.883
_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  0.250  0.250  0.250  1.0
  Mg  Mg1  1  0.500  0.500  0.500  1.0
  Pb  Pb2  1  0.750  0.750  0.750  1.0
  W  W3  1  0.000  0.000  0.000  1.0
[/CIF]
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