The compound described by MgPb2(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(6), and one O(7) atom to form distorted MgO4 tetrahedra that share  a cornercorner with one W(2)O6 octahedra, corners with two equivalent W(1)O6 octahedra, and  an edgeedge with one W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 2-67°. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(8) atom to form distorted WO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra and edges with two equivalent W(2)O6 octahedra. In the second W site, W(2) is bonded to one O(2), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form WO6 octahedra that share  a cornercorner with one Mg(1)O4 tetrahedra, edges with two equivalent W(1)O6 octahedra, and  an edgeedge with one Mg(1)O4 tetrahedra. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to one O(2), one O(4), one O(5), and one O(7) atom. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one O(4), one O(7), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Mg(1) and one W(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one W(2), and one Pb(1) atom. In the third O site, O(3) is bonded in a water-like geometry to one W(1) and one W(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one W(1), one Pb(1), and one Pb(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one W(1), one W(2), and one Pb(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mg(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a distorted see-saw-like geometry to one Mg(1), one W(2), one Pb(1), and one Pb(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one W(1), one W(2), and one Pb(2) atom. is represented by the CIF file [CIF]
data_MgPb2(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.252
_cell_length_b   7.347
_cell_length_c   7.165
_cell_angle_alpha   112.807
_cell_angle_beta   100.892
_cell_angle_gamma   109.693
_symmetry_Int_Tables_number   1
_cell_volume   223.110
_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  0.546  0.340  0.866  1.0
  Pb  Pb1  1  0.742  0.275  0.283  1.0
  Pb  Pb2  1  0.298  0.763  0.787  1.0
  W  W3  1  0.152  0.884  0.331  1.0
  W  W4  1  0.826  0.072  0.638  1.0
  O  O5  1  0.856  0.623  0.103  1.0
  O  O6  1  0.553  0.204  0.568  1.0
  O  O7  1  0.450  0.796  0.439  1.0
  O  O8  1  0.309  0.972  0.122  1.0
  O  O9  1  0.944  0.077  0.382  1.0
  O  O10  1  0.165  0.326  0.843  1.0
  O  O11  1  0.663  0.102  0.892  1.0
  O  O12  1  0.032  0.873  0.590  1.0
[/CIF]
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The compound described by MgPb2(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(6), and one O(7) atom to form distorted MgO4 tetrahedra that share  a cornercorner with one W(2)O6 octahedra, corners with two equivalent W(1)O6 octahedra, and  an edgeedge with one W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 2-67°. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(8) atom to form distorted WO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra and edges with two equivalent W(2)O6 octahedra. In the second W site, W(2) is bonded to one O(2), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form WO6 octahedra that share  a cornercorner with one Mg(1)O4 tetrahedra, edges with two equivalent W(1)O6 octahedra, and  an edgeedge with one Mg(1)O4 tetrahedra. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to one O(2), one O(4), one O(5), and one O(7) atom. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one O(4), one O(7), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Mg(1) and one W(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one W(2), and one Pb(1) atom. In the third O site, O(3) is bonded in a water-like geometry to one W(1) and one W(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one W(1), one Pb(1), and one Pb(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one W(1), one W(2), and one Pb(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mg(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a distorted see-saw-like geometry to one Mg(1), one W(2), one Pb(1), and one Pb(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one W(1), one W(2), and one Pb(2) atom. is represented by the CIF file [CIF]
data_MgPb2(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.252
_cell_length_b   7.347
_cell_length_c   7.165
_cell_angle_alpha   112.807
_cell_angle_beta   100.892
_cell_angle_gamma   109.693
_symmetry_Int_Tables_number   1
_cell_volume   223.110
_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  0.546  0.340  0.866  1.0
  Pb  Pb1  1  0.742  0.275  0.283  1.0
  Pb  Pb2  1  0.298  0.763  0.787  1.0
  W  W3  1  0.152  0.884  0.331  1.0
  W  W4  1  0.826  0.072  0.638  1.0
  O  O5  1  0.856  0.623  0.103  1.0
  O  O6  1  0.553  0.204  0.568  1.0
  O  O7  1  0.450  0.796  0.439  1.0
  O  O8  1  0.309  0.972  0.122  1.0
  O  O9  1  0.944  0.077  0.382  1.0
  O  O10  1  0.165  0.326  0.843  1.0
  O  O11  1  0.663  0.102  0.892  1.0
  O  O12  1  0.032  0.873  0.590  1.0
[/CIF]
.