data_YAs2Se
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.15
_cell_length_b   3.95
_cell_length_c   5.84
_cell_angle_alpha   90.0
_cell_angle_beta   104.69
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YAs2Se
_chemical_formula_sum   'Y1 As2 Se1'
_cell_volume   92.59
_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  0.26  0.0  0.83  1.0
  As  As0  1  0.38  0.98  0.59  1.0
  As  As1  1  0.29  0.98  0.06  1.0
  Se  Se2  1  0.0  0.0  0.0  1.0

data_YAs2Se
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.95
_cell_length_b   4.15
_cell_length_c   5.84
_cell_angle_alpha   104.69
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YAs2Se
_chemical_formula_sum   'Y1 As2 Se1'
_cell_volume   92.59
_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  0.0  0.74  0.17  1.0
  As  As1  1  0.02  0.62  0.41  1.0
  As  As2  1  0.02  0.71  0.94  1.0
  Se  Se3  1  0.0  0.0  0.0  1.0

Y As As Se