data_[Rb2Ga2Se4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ga  1.8100  1.3000  0.7600
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [6.3284]
_cell_length_b [7.1161]
_cell_length_c [7.7122]
_cell_angle_alpha [70.0347]
_cell_angle_beta [89.0904]
_cell_angle_gamma [72.5431]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [RbGaSe2]
_chemical_formula_sum '[Rb2 Ga2 Se4]'
_cell_volume [309.9433]
_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
[
  Rb  Rb0  2  0.1263  0.1630  0.7239  1
  Ga  Ga1  2  0.2576  0.4921  0.0043  1
  Se  Se2  2  0.0546  0.3044  0.2381  1
  Se  Se3  2  0.4195  0.7175  0.0988  1
]