data_CaHfSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.65
_cell_length_b   4.65
_cell_length_c   3.99
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CaHfSe
_chemical_formula_sum   'Ca1 Hf1 Se1'
_cell_volume   74.66
_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
  Ca  Ca0  1  0.0  0.0  0.0  1.0
  Hf  Hf1  1  0.32  0.34  0.99  1.0
  Se  Se2  1  0.0  0.68  0.99  1.0

data_CaHfSe
_symmetry_space_group_name_H-M   Pm
_cell_length_a   4.65
_cell_length_b   3.99
_cell_length_c   4.65
_cell_angle_alpha   90.0
_cell_angle_beta   120.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   CaHfSe
_chemical_formula_sum   'Ca1 Hf1 Se1'
_cell_volume   74.66
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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
  Ca  Ca0  1  0.0  0.0  0.0  1.0
  Hf  Hf1  1  0.32  0.0  0.34  1.0
  Se  Se2  1  0.0  0.0  0.68  1.0

Ca Hf Se
Ca Hf Se 0 2 o - - 0 1 o o - 