data_[Rb4Cu4Si4P8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Cu  1.9000  1.3500  0.8200
  Si  1.9000  1.1000  0.5400
  P  2.1900  1.0000  0.5500
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.5297]
_cell_length_b [3.8358]
_cell_length_c [9.6085]
_cell_angle_alpha [90.0000]
_cell_angle_beta [98.2230]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbCuSiP2]
_chemical_formula_sum '[Rb4 Cu4 Si4 P8]'
_cell_volume [457.0461]
_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  0.1505  0.5000  0.6561  1.0
  Si  Si1  4  0.0589  0.0000  0.1544  1.0
  Cu  Cu2  4  0.1910  0.5000  0.0580  1.0
  P  P3  4  0.1143  0.5000  0.2829  1.0
  P  P4  4  0.1199  0.0000  0.9404  1.0
]