data_YSeCl2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.16
_cell_length_b   7.16
_cell_length_c   7.16
_cell_angle_alpha   151.02
_cell_angle_beta   137.81
_cell_angle_gamma   52.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YSeCl2
_chemical_formula_sum   'Y1 Se1 Cl2'
_cell_volume   118.7
_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  Y3  1  0.0  0.0  0.43  1.0
  Se  Se2  1  0.0  0.0  0.0  1.0
  Cl  Cl0  1  0.79  0.0  0.41  1.0
  Cl  Cl1  1  0.0  0.58  0.03  1.0

data_YSeCl2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.58
_cell_length_b   5.15
_cell_length_c   7.16
_cell_angle_alpha   111.09
_cell_angle_beta   104.49
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YSeCl2
_chemical_formula_sum   'Y1 Se1 Cl2'
_cell_volume   118.7
_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  0.57  0.57  0.57  1.0
  Se  Se1  1  0.0  0.0  0.0  1.0
  Cl  Cl2  1  0.39  0.59  0.39  1.0
  Cl  Cl3  1  0.97  0.55  0.55  1.0

Y Se Cl Cl