The crystal structure described by Gd2S2O crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 7-coordinate geometry to two equivalent S(1), four equivalent S(2), and one O(1) atom. In the second Gd site, Gd(2) is bonded in a 3-coordinate geometry to one S(2), three equivalent S(1), and three equivalent O(1) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to two equivalent Gd(1) and three equivalent Gd(2) atoms. In the second S site, S(2) is bonded to one Gd(2) and four equivalent Gd(1) atoms to form distorted SGd5 trigonal bipyramids that share corners with three equivalent O(1)Gd4 tetrahedra, corners with four equivalent S(2)Gd5 trigonal bipyramids, edges with two equivalent O(1)Gd4 tetrahedra, and edges with four equivalent S(2)Gd5 trigonal bipyramids. O(1) is bonded to one Gd(1) and three equivalent Gd(2) atoms to form OGd4 tetrahedra that share corners with four equivalent O(1)Gd4 tetrahedra, corners with three equivalent S(2)Gd5 trigonal bipyramids,  an edgeedge with one O(1)Gd4 tetrahedra, and edges with two equivalent S(2)Gd5 trigonal bipyramids. is represented by the CIF file [CIF]
data_Gd2S2O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.928
_cell_length_b   6.999
_cell_length_c   8.355
_cell_angle_alpha   90.000
_cell_angle_beta   99.223
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   399.898
_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
  Gd  Gd0  1  0.249  0.446  0.862  1.0
  Gd  Gd1  1  0.751  0.554  0.138  1.0
  Gd  Gd2  1  0.183  0.360  0.422  1.0
  Gd  Gd3  1  0.683  0.140  0.422  1.0
  Gd  Gd4  1  0.749  0.054  0.862  1.0
  Gd  Gd5  1  0.251  0.946  0.138  1.0
  Gd  Gd6  1  0.817  0.640  0.578  1.0
  Gd  Gd7  1  0.317  0.860  0.578  1.0
  S  S8  1  0.570  0.361  0.679  1.0
  S  S9  1  0.930  0.861  0.321  1.0
  S  S10  1  0.530  0.224  0.078  1.0
  S  S11  1  0.470  0.776  0.922  1.0
  S  S12  1  0.070  0.139  0.679  1.0
  S  S13  1  0.030  0.276  0.078  1.0
  S  S14  1  0.970  0.724  0.922  1.0
  S  S15  1  0.430  0.639  0.321  1.0
  O  O16  1  0.649  0.913  0.617  1.0
  O  O17  1  0.851  0.413  0.383  1.0
  O  O18  1  0.149  0.587  0.617  1.0
  O  O19  1  0.351  0.087  0.383  1.0
[/CIF]
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The crystal structure described by Gd2S2O crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 7-coordinate geometry to two equivalent S(1), four equivalent S(2), and one O(1) atom. In the second Gd site, Gd(2) is bonded in a 3-coordinate geometry to one S(2), three equivalent S(1), and three equivalent O(1) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to two equivalent Gd(1) and three equivalent Gd(2) atoms. In the second S site, S(2) is bonded to one Gd(2) and four equivalent Gd(1) atoms to form distorted SGd5 trigonal bipyramids that share corners with three equivalent O(1)Gd4 tetrahedra, corners with four equivalent S(2)Gd5 trigonal bipyramids, edges with two equivalent O(1)Gd4 tetrahedra, and edges with four equivalent S(2)Gd5 trigonal bipyramids. O(1) is bonded to one Gd(1) and three equivalent Gd(2) atoms to form OGd4 tetrahedra that share corners with four equivalent O(1)Gd4 tetrahedra, corners with three equivalent S(2)Gd5 trigonal bipyramids,  an edgeedge with one O(1)Gd4 tetrahedra, and edges with two equivalent S(2)Gd5 trigonal bipyramids. is represented by the CIF file [CIF]
data_Gd2S2O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.928
_cell_length_b   6.999
_cell_length_c   8.355
_cell_angle_alpha   90.000
_cell_angle_beta   99.223
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   399.898
_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
  Gd  Gd0  1  0.249  0.446  0.862  1.0
  Gd  Gd1  1  0.751  0.554  0.138  1.0
  Gd  Gd2  1  0.183  0.360  0.422  1.0
  Gd  Gd3  1  0.683  0.140  0.422  1.0
  Gd  Gd4  1  0.749  0.054  0.862  1.0
  Gd  Gd5  1  0.251  0.946  0.138  1.0
  Gd  Gd6  1  0.817  0.640  0.578  1.0
  Gd  Gd7  1  0.317  0.860  0.578  1.0
  S  S8  1  0.570  0.361  0.679  1.0
  S  S9  1  0.930  0.861  0.321  1.0
  S  S10  1  0.530  0.224  0.078  1.0
  S  S11  1  0.470  0.776  0.922  1.0
  S  S12  1  0.070  0.139  0.679  1.0
  S  S13  1  0.030  0.276  0.078  1.0
  S  S14  1  0.970  0.724  0.922  1.0
  S  S15  1  0.430  0.639  0.321  1.0
  O  O16  1  0.649  0.913  0.617  1.0
  O  O17  1  0.851  0.413  0.383  1.0
  O  O18  1  0.149  0.587  0.617  1.0
  O  O19  1  0.351  0.087  0.383  1.0
[/CIF]
.