data_[Cr3As3Se2]
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 [Pmm2]
_cell_length_a [3.4287]
_cell_length_b [21.7685]
_cell_length_c [4.8459]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [Cr3As3Se2]
_chemical_formula_sum '[Cr3 As3 Se2]'
_cell_volume [361.6822]
_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  0.0000  0.4144  0.0698  1
  Cr  Cr1  1  0.0000  0.5000  0.5907  1
  As  As2  2  0.5000  0.4189  0.4653  1
  As  As3  1  0.5000  0.5000  0.9743  1
  Se  Se4  2  0.5000  0.3445  0.8577  1
]