data_[Rb6Ni4As8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ni  1.9100  1.3500  0.7400
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.2314]
_cell_length_b [4.0210]
_cell_length_c [9.5990]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.1268]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb3(NiAs2)2]
_chemical_formula_sum '[Rb6 Ni4 As8]'
_cell_volume [497.3611]
_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  4  0.1116  0.5000  0.3989  1.0
  Rb  Rb1  2  0.0000  0.0000  0.0000  1.0
  Ni  Ni2  4  0.1920  0.5000  0.8362  1.0
  As  As3  4  0.1241  0.0000  0.7039  1.0
  As  As4  4  0.2146  0.5000  0.0926  1.0
]