data_[Cu4Ni2H2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cu  1.9000  1.3500  0.8200
  Ni  1.9100  1.3500  0.7400
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [2.6855]
_cell_length_b [3.4446]
_cell_length_c [8.0091]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Cu2NiH]
_chemical_formula_sum '[Cu4 Ni2 H2]'
_cell_volume [74.0890]
_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
[
  Cu  Cu0  4  0.0000  0.0000  0.1706  1
  Ni  Ni1  2  0.0000  0.0000  0.5000  1
  H  H2  2  0.0000  0.5000  0.5000  1
]