data_[Sr4Ga4Si2]
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
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [4.4726]
_cell_length_b [4.1177]
_cell_length_c [14.6950]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Sr2Ga2Si]
_chemical_formula_sum '[Sr4 Ga4 Si2]'
_cell_volume [270.6384]
_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
[
  Sr  Sr0  2  0.0000  0.0000  0.0684  1
  Sr  Sr1  2  0.0000  0.0000  0.3162  1
  Ga  Ga2  2  0.5000  0.0000  0.4855  1
  Ga  Ga3  2  0.5000  0.0000  0.6956  1
  Si  Si4  2  0.5000  0.0000  0.8922  1
]