The structure described by Pr3AgSiS7 crystallizes in the hexagonal P6_3 space group. Pr(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 Pr(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 Pr(1) and one Si(1) atom. In the third S site, S(3) is bonded in a 5-coordinate geometry to four equivalent Pr(1) and one Ag(1) atom. is represented by the CIF card [CIF]
data_Pr3SiAgS7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.390
_cell_length_b   10.390
_cell_length_c   5.786
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   540.880
_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
  Pr  Pr0  1  0.122  0.360  0.250  1.0
  Pr  Pr1  1  0.878  0.640  0.750  1.0
  Pr  Pr2  1  0.640  0.763  0.250  1.0
  Pr  Pr3  1  0.237  0.878  0.250  1.0
  Pr  Pr4  1  0.763  0.122  0.750  1.0
  Pr  Pr5  1  0.360  0.237  0.750  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  0.291  1.0
  Ag  Ag9  1  0.000  0.000  0.791  1.0
  S  S10  1  0.333  0.667  0.024  1.0
  S  S11  1  0.667  0.333  0.524  1.0
  S  S12  1  0.408  0.525  0.518  1.0
  S  S13  1  0.592  0.475  0.018  1.0
  S  S14  1  0.475  0.882  0.518  1.0
  S  S15  1  0.118  0.592  0.518  1.0
  S  S16  1  0.882  0.408  0.018  1.0
  S  S17  1  0.525  0.118  0.018  1.0
  S  S18  1  0.089  0.266  0.764  1.0
  S  S19  1  0.911  0.734  0.264  1.0
  S  S20  1  0.734  0.823  0.764  1.0
  S  S21  1  0.177  0.911  0.764  1.0
  S  S22  1  0.823  0.089  0.264  1.0
  S  S23  1  0.266  0.177  0.264  1.0
[/CIF]
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The structure described by Pr3AgSiS7 crystallizes in the hexagonal P6_3 space group. Pr(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 Pr(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 Pr(1) and one Si(1) atom. In the third S site, S(3) is bonded in a 5-coordinate geometry to four equivalent Pr(1) and one Ag(1) atom. is represented by the CIF card [CIF]
data_Pr3SiAgS7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.390
_cell_length_b   10.390
_cell_length_c   5.786
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   540.880
_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
  Pr  Pr0  1  0.122  0.360  0.250  1.0
  Pr  Pr1  1  0.878  0.640  0.750  1.0
  Pr  Pr2  1  0.640  0.763  0.250  1.0
  Pr  Pr3  1  0.237  0.878  0.250  1.0
  Pr  Pr4  1  0.763  0.122  0.750  1.0
  Pr  Pr5  1  0.360  0.237  0.750  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  0.291  1.0
  Ag  Ag9  1  0.000  0.000  0.791  1.0
  S  S10  1  0.333  0.667  0.024  1.0
  S  S11  1  0.667  0.333  0.524  1.0
  S  S12  1  0.408  0.525  0.518  1.0
  S  S13  1  0.592  0.475  0.018  1.0
  S  S14  1  0.475  0.882  0.518  1.0
  S  S15  1  0.118  0.592  0.518  1.0
  S  S16  1  0.882  0.408  0.018  1.0
  S  S17  1  0.525  0.118  0.018  1.0
  S  S18  1  0.089  0.266  0.764  1.0
  S  S19  1  0.911  0.734  0.264  1.0
  S  S20  1  0.734  0.823  0.764  1.0
  S  S21  1  0.177  0.911  0.764  1.0
  S  S22  1  0.823  0.089  0.264  1.0
  S  S23  1  0.266  0.177  0.264  1.0
[/CIF]
.