data_[Li2Cu4P2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Cu  1.9000  1.3500  0.8200
  P  2.1900  1.0000  0.5500
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pc]
_cell_length_a [5.2405]
_cell_length_b [5.3922]
_cell_length_c [7.9696]
_cell_angle_alpha [90.0000]
_cell_angle_beta [128.3466]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [7]
_chemical_formula_structural [LiCu2PO4]
_chemical_formula_sum '[Li2 Cu4 P2 O8]'
_cell_volume [176.6195]
_cell_formula_units_Z [2]
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  2  0.0009  0.1824  0.5006  1
  Cu  Cu1  2  0.5518  0.1659  0.0155  1
  Cu  Cu2  2  0.7139  0.2549  0.7482  1
  P  P3  2  0.2670  0.3341  0.2537  1
  O  O4  2  0.1600  0.3963  0.7456  1
  O  O5  2  0.3351  0.1976  0.4524  1
  O  O6  2  0.5716  0.3229  0.2637  1
  O  O7  2  0.9824  0.1813  0.0535  1
]