The compound described by MgGd2Mo2(O4Cl)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent Cl(1) atoms to form MgCl2O4 octahedra that share edges with two equivalent Mo(1)O4 trigonal pyramids. Gd(1) is bonded in a 7-coordinate geometry to one O(1), one O(4), two equivalent O(2), two equivalent O(3), and one Cl(1) atom. Mo(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form MoO4 trigonal pyramids that share  an edgeedge with one Mg(1)Cl2O4 octahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Gd(1) and one Mo(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Gd(1) and one Mo(1) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), two equivalent Gd(1), and one Mo(1) atom. In the fourth O site, O(4) is bonded in a T-shaped geometry to one Mg(1), one Gd(1), and one Mo(1) atom. Cl(1) is bonded in a distorted single-bond geometry to one Mg(1) and one Gd(1) atom. is represented by the CIF file [CIF]
data_Gd2MgMo2(ClO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.735
_cell_length_b   6.735
_cell_length_c   7.232
_cell_angle_alpha   76.278
_cell_angle_beta   76.278
_cell_angle_gamma   61.669
_symmetry_Int_Tables_number   1
_cell_volume   277.499
_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
  Gd  Gd0  1  0.268  0.290  0.872  1.0
  Gd  Gd1  1  0.710  0.732  0.128  1.0
  Mg  Mg2  1  0.756  0.244  0.000  1.0
  Mo  Mo3  1  0.625  0.670  0.710  1.0
  Mo  Mo4  1  0.330  0.375  0.290  1.0
  Cl  Cl5  1  0.065  0.055  0.198  1.0
  Cl  Cl6  1  0.945  0.935  0.802  1.0
  O  O7  1  0.301  0.299  0.547  1.0
  O  O8  1  0.478  0.900  0.862  1.0
  O  O9  1  0.701  0.699  0.453  1.0
  O  O10  1  0.520  0.123  0.142  1.0
  O  O11  1  0.100  0.522  0.138  1.0
  O  O12  1  0.552  0.489  0.197  1.0
  O  O13  1  0.877  0.480  0.858  1.0
  O  O14  1  0.511  0.448  0.803  1.0
[/CIF]
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The compound described by MgGd2Mo2(O4Cl)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent Cl(1) atoms to form MgCl2O4 octahedra that share edges with two equivalent Mo(1)O4 trigonal pyramids. Gd(1) is bonded in a 7-coordinate geometry to one O(1), one O(4), two equivalent O(2), two equivalent O(3), and one Cl(1) atom. Mo(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form MoO4 trigonal pyramids that share  an edgeedge with one Mg(1)Cl2O4 octahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Gd(1) and one Mo(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Gd(1) and one Mo(1) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), two equivalent Gd(1), and one Mo(1) atom. In the fourth O site, O(4) is bonded in a T-shaped geometry to one Mg(1), one Gd(1), and one Mo(1) atom. Cl(1) is bonded in a distorted single-bond geometry to one Mg(1) and one Gd(1) atom. is represented by the CIF file [CIF]
data_Gd2MgMo2(ClO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.735
_cell_length_b   6.735
_cell_length_c   7.232
_cell_angle_alpha   76.278
_cell_angle_beta   76.278
_cell_angle_gamma   61.669
_symmetry_Int_Tables_number   1
_cell_volume   277.499
_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
  Gd  Gd0  1  0.268  0.290  0.872  1.0
  Gd  Gd1  1  0.710  0.732  0.128  1.0
  Mg  Mg2  1  0.756  0.244  0.000  1.0
  Mo  Mo3  1  0.625  0.670  0.710  1.0
  Mo  Mo4  1  0.330  0.375  0.290  1.0
  Cl  Cl5  1  0.065  0.055  0.198  1.0
  Cl  Cl6  1  0.945  0.935  0.802  1.0
  O  O7  1  0.301  0.299  0.547  1.0
  O  O8  1  0.478  0.900  0.862  1.0
  O  O9  1  0.701  0.699  0.453  1.0
  O  O10  1  0.520  0.123  0.142  1.0
  O  O11  1  0.100  0.522  0.138  1.0
  O  O12  1  0.552  0.489  0.197  1.0
  O  O13  1  0.877  0.480  0.858  1.0
  O  O14  1  0.511  0.448  0.803  1.0
[/CIF]
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