data_[Cr2As2Se1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cr  1.6600  1.4000  0.9400
  As  2.1800  1.1500  0.6600
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P-6m2]
_cell_length_a [3.0969]
_cell_length_b [3.0969]
_cell_length_c [21.7904]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [187]
_chemical_formula_structural [Cr2As2Se]
_chemical_formula_sum '[Cr2 As2 Se1]'
_cell_volume [180.9933]
_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
[
  Cr  Cr0  2  0.6667  0.3333  0.5748  1
  As  As1  2  0.0000  0.0000  0.3442  1
  Se  Se2  1  0.3333  0.6667  0.5000  1
]