data_NaZr2Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.24
_cell_length_b   4.24
_cell_length_c   4.49
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaZr2Cu
_chemical_formula_sum   'Na1 Zr2 Cu1'
_cell_volume   80.89
_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
  Na  Na1  1  0.0  0.0  0.0  1.0
  Zr  Zr2  1  0.0  0.12  0.25  1.0
  Zr  Zr3  1  0.12  0.0  0.25  1.0
  Cu  Cu0  1  0.12  0.12  0.0  1.0

data_NaZr2Cu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.0
_cell_length_b   6.0
_cell_length_c   4.49
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NaZr2Cu
_chemical_formula_sum   'Na2 Zr4 Cu2'
_cell_volume   161.78
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Na  Na0  2  0.0  0.0  0.0  1.0
  Zr  Zr1  4  0.06  0.06  0.25  1.0
  Cu  Cu2  2  0.12  0.0  0.0  1.0

Na Zr Zr Cu
Na Zr Zr Cu 0 3 o o o 1 2 o o o 