The crystal structure described by YSI crystallizes in the hexagonal P-6m2 space group. Y(1) is bonded in a trigonal planar geometry to three equivalent S(1) and six equivalent I(1) atoms. S(1) is bonded in a trigonal planar geometry to three equivalent Y(1) atoms. I(1) is bonded to six equivalent Y(1) atoms to form a mixture of distorted edge, corner, and face-sharing IY6 pentagonal pyramids. is represented by the CIF card [CIF]
data_YSI
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.544
_cell_length_b   4.544
_cell_length_c   5.143
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   91.947
_cell_formula_units_Z   1
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
  Y  Y0  1  0.333  0.667  0.000  1.0
  S  S1  1  0.667  0.333  0.000  1.0
  I  I2  1  0.000  0.000  0.500  1.0
[/CIF]
.
The crystal structure described by YSI crystallizes in the hexagonal P-6m2 space group. Y(1) is bonded in a trigonal planar geometry to three equivalent S(1) and six equivalent I(1) atoms. S(1) is bonded in a trigonal planar geometry to three equivalent Y(1) atoms. I(1) is bonded to six equivalent Y(1) atoms to form a mixture of distorted edge, corner, and face-sharing IY6 pentagonal pyramids. is represented by the CIF card [CIF]
data_YSI
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.544
_cell_length_b   4.544
_cell_length_c   5.143
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   91.947
_cell_formula_units_Z   1
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
  Y  Y0  1  0.333  0.667  0.000  1.0
  S  S1  1  0.667  0.333  0.000  1.0
  I  I2  1  0.000  0.000  0.500  1.0
[/CIF]
.