The structure described by LaS2 crystallizes in the monoclinic P2_1/c space group. La(1) is bonded in a 9-coordinate geometry to four equivalent S(1) and five equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(2) is bonded to five equivalent La(1) atoms to form a mixture of distorted corner and edge-sharing SLa5 trigonal bipyramids. In the second S site, S(1) is bonded in a distorted pentagonal planar geometry to four equivalent La(1) and one S(1) atom. is represented by the CIF file [CIF]
data_LaS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.144
_cell_length_b   8.212
_cell_length_c   8.218
_cell_angle_alpha   90.063
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   279.625
_cell_formula_units_Z   4
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
  La  La0  1  0.710  0.723  0.370  1.0
  La  La1  1  0.210  0.277  0.130  1.0
  La  La2  1  0.290  0.277  0.630  1.0
  La  La3  1  0.790  0.723  0.870  1.0
  S  S4  1  0.650  0.003  0.104  1.0
  S  S5  1  0.150  0.997  0.396  1.0
  S  S6  1  0.350  0.997  0.896  1.0
  S  S7  1  0.850  0.003  0.604  1.0
  S  S8  1  0.736  0.365  0.374  1.0
  S  S9  1  0.236  0.635  0.126  1.0
  S  S10  1  0.264  0.635  0.626  1.0
  S  S11  1  0.764  0.365  0.874  1.0
[/CIF]
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The structure described by LaS2 crystallizes in the monoclinic P2_1/c space group. La(1) is bonded in a 9-coordinate geometry to four equivalent S(1) and five equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(2) is bonded to five equivalent La(1) atoms to form a mixture of distorted corner and edge-sharing SLa5 trigonal bipyramids. In the second S site, S(1) is bonded in a distorted pentagonal planar geometry to four equivalent La(1) and one S(1) atom. is represented by the CIF file [CIF]
data_LaS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.144
_cell_length_b   8.212
_cell_length_c   8.218
_cell_angle_alpha   90.063
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   279.625
_cell_formula_units_Z   4
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
  La  La0  1  0.710  0.723  0.370  1.0
  La  La1  1  0.210  0.277  0.130  1.0
  La  La2  1  0.290  0.277  0.630  1.0
  La  La3  1  0.790  0.723  0.870  1.0
  S  S4  1  0.650  0.003  0.104  1.0
  S  S5  1  0.150  0.997  0.396  1.0
  S  S6  1  0.350  0.997  0.896  1.0
  S  S7  1  0.850  0.003  0.604  1.0
  S  S8  1  0.736  0.365  0.374  1.0
  S  S9  1  0.236  0.635  0.126  1.0
  S  S10  1  0.264  0.635  0.626  1.0
  S  S11  1  0.764  0.365  0.874  1.0
[/CIF]
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