data_[Sr2C4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [4.0978]
_cell_length_b [4.0978]
_cell_length_c [6.8133]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [SrC2]
_chemical_formula_sum '[Sr2 C4]'
_cell_volume [114.4084]
_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  0.0000  1
  C  C1  4  0.0000  0.0000  0.4079  1
]