The compound described by Sr(AsS2)2 crystallizes in the triclinic P1 space group. Sr(1) is bonded in a 7-coordinate geometry to one S(4), two equivalent S(1), two equivalent S(2), and two equivalent S(3) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 3-coordinate geometry to one S(1), one S(2), one S(3), and one S(4) atom. In the second As site, As(2) is bonded in a trigonal non-coplanar geometry to one S(1), one S(3), and one S(4) atom. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one As(1), and one As(2) atom. In the second S site, S(2) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one As(1) atom. In the third S site, S(3) is bonded to two equivalent Sr(1), one As(1), and one As(2) atom to form distorted corner-sharing SSr2As2 trigonal pyramids. In the fourth S site, S(4) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1), one As(1), and one As(2) atom. is represented by the CIF card [CIF]
data_Sr(AsS2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.878
_cell_length_b   5.999
_cell_length_c   6.009
_cell_angle_alpha   103.057
_cell_angle_beta   92.798
_cell_angle_gamma   106.710
_symmetry_Int_Tables_number   1
_cell_volume   196.220
_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
  Sr  Sr0  1  0.804  0.545  0.266  1.0
  As  As1  1  0.535  0.977  0.547  1.0
  As  As2  1  0.229  0.439  0.737  1.0
  S  S3  1  0.853  0.462  0.755  1.0
  S  S4  1  0.612  0.999  0.196  1.0
  S  S5  1  0.307  0.544  0.392  1.0
  S  S6  1  0.159  0.034  0.607  1.0
[/CIF]
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The compound described by Sr(AsS2)2 crystallizes in the triclinic P1 space group. Sr(1) is bonded in a 7-coordinate geometry to one S(4), two equivalent S(1), two equivalent S(2), and two equivalent S(3) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 3-coordinate geometry to one S(1), one S(2), one S(3), and one S(4) atom. In the second As site, As(2) is bonded in a trigonal non-coplanar geometry to one S(1), one S(3), and one S(4) atom. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one As(1), and one As(2) atom. In the second S site, S(2) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one As(1) atom. In the third S site, S(3) is bonded to two equivalent Sr(1), one As(1), and one As(2) atom to form distorted corner-sharing SSr2As2 trigonal pyramids. In the fourth S site, S(4) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1), one As(1), and one As(2) atom. is represented by the CIF card [CIF]
data_Sr(AsS2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.878
_cell_length_b   5.999
_cell_length_c   6.009
_cell_angle_alpha   103.057
_cell_angle_beta   92.798
_cell_angle_gamma   106.710
_symmetry_Int_Tables_number   1
_cell_volume   196.220
_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
  Sr  Sr0  1  0.804  0.545  0.266  1.0
  As  As1  1  0.535  0.977  0.547  1.0
  As  As2  1  0.229  0.439  0.737  1.0
  S  S3  1  0.853  0.462  0.755  1.0
  S  S4  1  0.612  0.999  0.196  1.0
  S  S5  1  0.307  0.544  0.392  1.0
  S  S6  1  0.159  0.034  0.607  1.0
[/CIF]
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