The structure described by Ce3AgSiS7 crystallizes in the hexagonal P6_3 space group. Ce(1) is bonded in a 8-coordinate geometry to one S(1), three equivalent S(2), and four equivalent S(3) atoms. Ag(1) is bonded in a trigonal planar geometry to three equivalent S(3) atoms. Si(1) is bonded in a tetrahedral geometry to one S(1) and three equivalent S(2) atoms. There are three inequivalent S sites. In the first S site, S(1) is bonded in a distorted tetrahedral geometry to three equivalent Ce(1) and one Si(1) atom. In the second S site, S(2) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Ce(1) and one Si(1) atom. In the third S site, S(3) is bonded in a 5-coordinate geometry to four equivalent Ce(1) and one Ag(1) atom. is represented by the CIF file [CIF]
data_Ce3SiAgS7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.330
_cell_length_b   10.330
_cell_length_c   5.773
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   533.497
_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
  Ce  Ce0  1  0.124  0.359  0.248  1.0
  Ce  Ce1  1  0.876  0.641  0.748  1.0
  Ce  Ce2  1  0.641  0.765  0.248  1.0
  Ce  Ce3  1  0.235  0.876  0.248  1.0
  Ce  Ce4  1  0.765  0.124  0.748  1.0
  Ce  Ce5  1  0.359  0.235  0.748  1.0
  Si  Si6  1  0.333  0.667  0.661  1.0
  Si  Si7  1  0.667  0.333  0.161  1.0
  Ag  Ag8  1  0.000  0.000  0.308  1.0
  Ag  Ag9  1  0.000  0.000  0.808  1.0
  S  S10  1  0.333  0.667  0.028  1.0
  S  S11  1  0.667  0.333  0.528  1.0
  S  S12  1  0.410  0.525  0.516  1.0
  S  S13  1  0.590  0.475  0.016  1.0
  S  S14  1  0.475  0.885  0.516  1.0
  S  S15  1  0.115  0.590  0.516  1.0
  S  S16  1  0.885  0.410  0.016  1.0
  S  S17  1  0.525  0.115  0.016  1.0
  S  S18  1  0.091  0.267  0.762  1.0
  S  S19  1  0.909  0.733  0.262  1.0
  S  S20  1  0.733  0.824  0.762  1.0
  S  S21  1  0.176  0.909  0.762  1.0
  S  S22  1  0.824  0.091  0.262  1.0
  S  S23  1  0.267  0.176  0.262  1.0
[/CIF]
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The structure described by Ce3AgSiS7 crystallizes in the hexagonal P6_3 space group. Ce(1) is bonded in a 8-coordinate geometry to one S(1), three equivalent S(2), and four equivalent S(3) atoms. Ag(1) is bonded in a trigonal planar geometry to three equivalent S(3) atoms. Si(1) is bonded in a tetrahedral geometry to one S(1) and three equivalent S(2) atoms. There are three inequivalent S sites. In the first S site, S(1) is bonded in a distorted tetrahedral geometry to three equivalent Ce(1) and one Si(1) atom. In the second S site, S(2) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Ce(1) and one Si(1) atom. In the third S site, S(3) is bonded in a 5-coordinate geometry to four equivalent Ce(1) and one Ag(1) atom. is represented by the CIF file [CIF]
data_Ce3SiAgS7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.330
_cell_length_b   10.330
_cell_length_c   5.773
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   533.497
_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
  Ce  Ce0  1  0.124  0.359  0.248  1.0
  Ce  Ce1  1  0.876  0.641  0.748  1.0
  Ce  Ce2  1  0.641  0.765  0.248  1.0
  Ce  Ce3  1  0.235  0.876  0.248  1.0
  Ce  Ce4  1  0.765  0.124  0.748  1.0
  Ce  Ce5  1  0.359  0.235  0.748  1.0
  Si  Si6  1  0.333  0.667  0.661  1.0
  Si  Si7  1  0.667  0.333  0.161  1.0
  Ag  Ag8  1  0.000  0.000  0.308  1.0
  Ag  Ag9  1  0.000  0.000  0.808  1.0
  S  S10  1  0.333  0.667  0.028  1.0
  S  S11  1  0.667  0.333  0.528  1.0
  S  S12  1  0.410  0.525  0.516  1.0
  S  S13  1  0.590  0.475  0.016  1.0
  S  S14  1  0.475  0.885  0.516  1.0
  S  S15  1  0.115  0.590  0.516  1.0
  S  S16  1  0.885  0.410  0.016  1.0
  S  S17  1  0.525  0.115  0.016  1.0
  S  S18  1  0.091  0.267  0.762  1.0
  S  S19  1  0.909  0.733  0.262  1.0
  S  S20  1  0.733  0.824  0.762  1.0
  S  S21  1  0.176  0.909  0.762  1.0
  S  S22  1  0.824  0.091  0.262  1.0
  S  S23  1  0.267  0.176  0.262  1.0
[/CIF]
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