data_[Rb4As4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.5556]
_cell_length_b [12.3608]
_cell_length_c [4.1445]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [RbAs]
_chemical_formula_sum '[Rb4 As4]'
_cell_volume [284.6121]
_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
[
  Rb  Rb0  4  0.0000  0.3618  0.2500  1.0
  As  As1  4  0.0000  0.0604  0.2500  1.0
]