data_[Sr8Ga4Ni4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ga  1.8100  1.3000  0.7600
  Ni  1.9100  1.3500  0.7400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.2645]
_cell_length_b [14.2452]
_cell_length_c [10.3344]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Sr2GaNiO5]
_chemical_formula_sum '[Sr8 Ga4 Ni4 O20]'
_cell_volume [480.5845]
_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
[
  Sr  Sr0  4  0.0000  0.1116  0.6801  1
  Sr  Sr1  4  0.0000  0.1354  0.3019  1
  Ga  Ga2  4  0.0000  0.4400  0.4505  1
  Ni  Ni3  4  0.0000  0.2208  0.0211  1
  O  O4  4  0.0000  0.0536  0.0428  1
  O  O5  4  0.0000  0.2857  0.6441  1
  O  O6  4  0.0000  0.3119  0.3913  1
  O  O7  4  0.0000  0.3497  0.9993  1
  O  O8  4  0.0000  0.4994  0.2929  1
]