data_[Ni4Sn4Se4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ni  1.9100  1.3500  0.7400
  Sn  1.9600  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Pca2_1]
_cell_length_a [6.0969]
_cell_length_b [6.0620]
_cell_length_c [6.0871]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [29]
_chemical_formula_structural [NiSnSe]
_chemical_formula_sum '[Ni4 Sn4 Se4]'
_cell_volume [224.9766]
_cell_formula_units_Z [4]
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
[
  Ni  Ni0  4  0.0134  0.2708  0.4962  1.0
  Sn  Sn1  4  0.1304  0.8738  0.3707  1.0
  Se  Se2  4  0.1290  0.3769  0.1311  1.0
]