data_[Li1Zr2Cu1N1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Zr  1.3300  1.5500  0.8600
  Cu  1.9000  1.3500  0.8200
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [4.4560]
_cell_length_b [4.4560]
_cell_length_c [3.8182]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [LiZr2CuN]
_chemical_formula_sum '[Li1 Zr2 Cu1 N1]'
_cell_volume [75.8158]
_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
[
  Li  Li0  1  0.0000  0.0000  0.5000  1
  Zr  Zr1  2  0.0000  0.5000  0.0000  1
  Cu  Cu2  1  0.5000  0.5000  0.5000  1
  N  N3  1  0.0000  0.0000  0.0000  1
]