The crystal structure described by Dy3CuGeSe7 crystallizes in the hexagonal P6_3 space group. Dy(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 Dy(1) and three equivalent Se(1) atoms. Ge(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 5-coordinate geometry to four equivalent Dy(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 Dy(1) and one Ge(1) atom. In the third Se site, Se(3) is bonded in a tetrahedral geometry to three equivalent Dy(1) and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Dy3CuGeSe7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.333
_cell_length_b   10.333
_cell_length_c   6.108
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   564.748
_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
  Dy  Dy0  1  0.220  0.356  0.420  1.0
  Dy  Dy1  1  0.864  0.220  0.920  1.0
  Dy  Dy2  1  0.356  0.136  0.920  1.0
  Dy  Dy3  1  0.644  0.864  0.420  1.0
  Dy  Dy4  1  0.136  0.780  0.420  1.0
  Dy  Dy5  1  0.780  0.644  0.920  1.0
  Cu  Cu6  1  0.000  0.000  0.473  1.0
  Cu  Cu7  1  0.000  0.000  0.973  1.0
  Ge  Ge8  1  0.667  0.333  0.337  1.0
  Ge  Ge9  1  0.333  0.667  0.837  1.0
  Se  Se10  1  0.263  0.103  0.455  1.0
  Se  Se11  1  0.160  0.263  0.955  1.0
  Se  Se12  1  0.103  0.840  0.955  1.0
  Se  Se13  1  0.897  0.160  0.455  1.0
  Se  Se14  1  0.840  0.737  0.455  1.0
  Se  Se15  1  0.737  0.897  0.955  1.0
  Se  Se16  1  0.518  0.425  0.171  1.0
  Se  Se17  1  0.092  0.518  0.671  1.0
  Se  Se18  1  0.425  0.908  0.671  1.0
  Se  Se19  1  0.575  0.092  0.171  1.0
  Se  Se20  1  0.908  0.482  0.171  1.0
  Se  Se21  1  0.482  0.575  0.671  1.0
  Se  Se22  1  0.333  0.667  0.224  1.0
  Se  Se23  1  0.667  0.333  0.724  1.0
[/CIF]
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The crystal structure described by Dy3CuGeSe7 crystallizes in the hexagonal P6_3 space group. Dy(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 Dy(1) and three equivalent Se(1) atoms. Ge(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 5-coordinate geometry to four equivalent Dy(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 Dy(1) and one Ge(1) atom. In the third Se site, Se(3) is bonded in a tetrahedral geometry to three equivalent Dy(1) and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Dy3CuGeSe7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.333
_cell_length_b   10.333
_cell_length_c   6.108
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   564.748
_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
  Dy  Dy0  1  0.220  0.356  0.420  1.0
  Dy  Dy1  1  0.864  0.220  0.920  1.0
  Dy  Dy2  1  0.356  0.136  0.920  1.0
  Dy  Dy3  1  0.644  0.864  0.420  1.0
  Dy  Dy4  1  0.136  0.780  0.420  1.0
  Dy  Dy5  1  0.780  0.644  0.920  1.0
  Cu  Cu6  1  0.000  0.000  0.473  1.0
  Cu  Cu7  1  0.000  0.000  0.973  1.0
  Ge  Ge8  1  0.667  0.333  0.337  1.0
  Ge  Ge9  1  0.333  0.667  0.837  1.0
  Se  Se10  1  0.263  0.103  0.455  1.0
  Se  Se11  1  0.160  0.263  0.955  1.0
  Se  Se12  1  0.103  0.840  0.955  1.0
  Se  Se13  1  0.897  0.160  0.455  1.0
  Se  Se14  1  0.840  0.737  0.455  1.0
  Se  Se15  1  0.737  0.897  0.955  1.0
  Se  Se16  1  0.518  0.425  0.171  1.0
  Se  Se17  1  0.092  0.518  0.671  1.0
  Se  Se18  1  0.425  0.908  0.671  1.0
  Se  Se19  1  0.575  0.092  0.171  1.0
  Se  Se20  1  0.908  0.482  0.171  1.0
  Se  Se21  1  0.482  0.575  0.671  1.0
  Se  Se22  1  0.333  0.667  0.224  1.0
  Se  Se23  1  0.667  0.333  0.724  1.0
[/CIF]
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