data_[Sr2Tb2Be2N4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Tb  1.1000  1.7500  0.9815
  Be  1.5700  1.0500  0.5900
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Pccm]
_cell_length_a [5.1981]
_cell_length_b [5.3533]
_cell_length_c [6.7330]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [49]
_chemical_formula_structural [SrTbBeN2]
_chemical_formula_sum '[Sr2 Tb2 Be2 N4]'
_cell_volume [187.3590]
_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  0.5000  0.2500  1
  Tb  Tb1  2  0.5000  0.0000  0.2500  1
  Be  Be2  2  0.0000  0.0000  0.0000  1
  N  N3  4  0.2370  0.1746  0.0000  1
]