The compound described by MgMo2(Pb2O5)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded in a distorted see-saw-like geometry to two equivalent O(4) and two equivalent O(5) atoms. Mo(1) is bonded in a tetrahedral geometry to one O(3), one O(4), one O(5), and one O(6) atom. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(5) atom. In the second Pb site, Pb(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(4), and one O(5) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Pb(1) and two equivalent Pb(2) atoms to form edge-sharing OPb4 tetrahedra. In the second O site, O(2) is bonded to two equivalent Pb(1) and two equivalent Pb(2) atoms to form edge-sharing OPb4 tetrahedra. In the third O site, O(3) is bonded in a linear geometry to one Mo(1) and one Pb(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Mg(1), one Mo(1), and one Pb(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Mg(1), one Mo(1), one Pb(1), and one Pb(2) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Mo(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMo2(Pb2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.167
_cell_length_b   7.355
_cell_length_c   8.171
_cell_angle_alpha   109.687
_cell_angle_beta   112.171
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   319.703
_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  0.877  0.500  0.000  1.0
  Mo  Mo1  1  0.857  0.322  0.620  1.0
  Mo  Mo2  1  0.237  0.678  0.380  1.0
  Pb  Pb3  1  0.441  0.257  0.050  1.0
  Pb  Pb4  1  0.391  0.743  0.950  1.0
  Pb  Pb5  1  0.046  0.080  0.250  1.0
  Pb  Pb6  1  0.796  0.920  0.750  1.0
  O  O7  1  0.678  0.000  0.000  1.0
  O  O8  1  0.191  0.000  0.000  1.0
  O  O9  1  0.669  0.306  0.379  1.0
  O  O10  1  0.291  0.694  0.621  1.0
  O  O11  1  0.943  0.745  0.227  1.0
  O  O12  1  0.717  0.255  0.773  1.0
  O  O13  1  0.947  0.584  0.814  1.0
  O  O14  1  0.133  0.416  0.186  1.0
  O  O15  1  0.456  0.804  0.347  1.0
  O  O16  1  0.110  0.196  0.653  1.0
[/CIF]
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The compound described by MgMo2(Pb2O5)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded in a distorted see-saw-like geometry to two equivalent O(4) and two equivalent O(5) atoms. Mo(1) is bonded in a tetrahedral geometry to one O(3), one O(4), one O(5), and one O(6) atom. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(5) atom. In the second Pb site, Pb(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(4), and one O(5) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Pb(1) and two equivalent Pb(2) atoms to form edge-sharing OPb4 tetrahedra. In the second O site, O(2) is bonded to two equivalent Pb(1) and two equivalent Pb(2) atoms to form edge-sharing OPb4 tetrahedra. In the third O site, O(3) is bonded in a linear geometry to one Mo(1) and one Pb(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Mg(1), one Mo(1), and one Pb(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Mg(1), one Mo(1), one Pb(1), and one Pb(2) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Mo(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMo2(Pb2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.167
_cell_length_b   7.355
_cell_length_c   8.171
_cell_angle_alpha   109.687
_cell_angle_beta   112.171
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   319.703
_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  0.877  0.500  0.000  1.0
  Mo  Mo1  1  0.857  0.322  0.620  1.0
  Mo  Mo2  1  0.237  0.678  0.380  1.0
  Pb  Pb3  1  0.441  0.257  0.050  1.0
  Pb  Pb4  1  0.391  0.743  0.950  1.0
  Pb  Pb5  1  0.046  0.080  0.250  1.0
  Pb  Pb6  1  0.796  0.920  0.750  1.0
  O  O7  1  0.678  0.000  0.000  1.0
  O  O8  1  0.191  0.000  0.000  1.0
  O  O9  1  0.669  0.306  0.379  1.0
  O  O10  1  0.291  0.694  0.621  1.0
  O  O11  1  0.943  0.745  0.227  1.0
  O  O12  1  0.717  0.255  0.773  1.0
  O  O13  1  0.947  0.584  0.814  1.0
  O  O14  1  0.133  0.416  0.186  1.0
  O  O15  1  0.456  0.804  0.347  1.0
  O  O16  1  0.110  0.196  0.653  1.0
[/CIF]
.