The crystal structure described by Gd3CuSnSe7 crystallizes in the hexagonal P6_3 space group. Gd(1) is bonded in a 9-coordinate geometry to one Cu(1), one Se(3), three equivalent Se(2), and four equivalent Se(1) atoms. Cu(1) is bonded in a trigonal planar geometry to three equivalent Gd(1) and three equivalent Se(1) atoms. Sn(1) is bonded in a tetrahedral geometry to one Se(3) and three equivalent Se(2) atoms. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a 4-coordinate geometry to four equivalent Gd(1) and one Cu(1) atom. In the second Se site, Se(2) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Gd(1) and one Sn(1) atom. In the third Se site, Se(3) is bonded in a tetrahedral geometry to three equivalent Gd(1) and one Sn(1) atom. is represented by the CIF file [CIF]
data_Gd3CuSnSe7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.370
_cell_length_b   10.370
_cell_length_c   6.453
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   600.960
_cell_formula_units_Z   2
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  0.209  0.357  0.915  1.0
  Gd  Gd1  1  0.791  0.643  0.415  1.0
  Gd  Gd2  1  0.852  0.209  0.415  1.0
  Gd  Gd3  1  0.643  0.852  0.915  1.0
  Gd  Gd4  1  0.148  0.791  0.915  1.0
  Gd  Gd5  1  0.357  0.148  0.415  1.0
  Cu  Cu6  1  0.000  0.000  0.500  1.0
  Cu  Cu7  1  0.000  0.000  0.000  1.0
  Sn  Sn8  1  0.333  0.667  0.342  1.0
  Sn  Sn9  1  0.667  0.333  0.842  1.0
  Se  Se10  1  0.851  0.738  0.976  1.0
  Se  Se11  1  0.887  0.149  0.976  1.0
  Se  Se12  1  0.738  0.887  0.476  1.0
  Se  Se13  1  0.438  0.921  0.163  1.0
  Se  Se14  1  0.517  0.438  0.663  1.0
  Se  Se15  1  0.113  0.851  0.476  1.0
  Se  Se16  1  0.483  0.562  0.163  1.0
  Se  Se17  1  0.149  0.262  0.476  1.0
  Se  Se18  1  0.562  0.079  0.663  1.0
  Se  Se19  1  0.667  0.333  0.237  1.0
  Se  Se20  1  0.333  0.667  0.737  1.0
  Se  Se21  1  0.079  0.517  0.163  1.0
  Se  Se22  1  0.262  0.113  0.976  1.0
  Se  Se23  1  0.921  0.483  0.663  1.0
[/CIF]
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The crystal structure described by Gd3CuSnSe7 crystallizes in the hexagonal P6_3 space group. Gd(1) is bonded in a 9-coordinate geometry to one Cu(1), one Se(3), three equivalent Se(2), and four equivalent Se(1) atoms. Cu(1) is bonded in a trigonal planar geometry to three equivalent Gd(1) and three equivalent Se(1) atoms. Sn(1) is bonded in a tetrahedral geometry to one Se(3) and three equivalent Se(2) atoms. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a 4-coordinate geometry to four equivalent Gd(1) and one Cu(1) atom. In the second Se site, Se(2) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Gd(1) and one Sn(1) atom. In the third Se site, Se(3) is bonded in a tetrahedral geometry to three equivalent Gd(1) and one Sn(1) atom. is represented by the CIF file [CIF]
data_Gd3CuSnSe7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.370
_cell_length_b   10.370
_cell_length_c   6.453
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   600.960
_cell_formula_units_Z   2
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  0.209  0.357  0.915  1.0
  Gd  Gd1  1  0.791  0.643  0.415  1.0
  Gd  Gd2  1  0.852  0.209  0.415  1.0
  Gd  Gd3  1  0.643  0.852  0.915  1.0
  Gd  Gd4  1  0.148  0.791  0.915  1.0
  Gd  Gd5  1  0.357  0.148  0.415  1.0
  Cu  Cu6  1  0.000  0.000  0.500  1.0
  Cu  Cu7  1  0.000  0.000  0.000  1.0
  Sn  Sn8  1  0.333  0.667  0.342  1.0
  Sn  Sn9  1  0.667  0.333  0.842  1.0
  Se  Se10  1  0.851  0.738  0.976  1.0
  Se  Se11  1  0.887  0.149  0.976  1.0
  Se  Se12  1  0.738  0.887  0.476  1.0
  Se  Se13  1  0.438  0.921  0.163  1.0
  Se  Se14  1  0.517  0.438  0.663  1.0
  Se  Se15  1  0.113  0.851  0.476  1.0
  Se  Se16  1  0.483  0.562  0.163  1.0
  Se  Se17  1  0.149  0.262  0.476  1.0
  Se  Se18  1  0.562  0.079  0.663  1.0
  Se  Se19  1  0.667  0.333  0.237  1.0
  Se  Se20  1  0.333  0.667  0.737  1.0
  Se  Se21  1  0.079  0.517  0.163  1.0
  Se  Se22  1  0.262  0.113  0.976  1.0
  Se  Se23  1  0.921  0.483  0.663  1.0
[/CIF]
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