data_[Rb1Cr4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Cr  1.6600  1.4000  0.9400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P1]
_cell_length_a [3.0204]
_cell_length_b [7.1962]
_cell_length_c [7.2508]
_cell_angle_alpha [87.8996]
_cell_angle_beta [78.0066]
_cell_angle_gamma [78.4253]
_symmetry_Int_Tables_number [1]
_chemical_formula_structural [RbCr4O8]
_chemical_formula_sum '[Rb1 Cr4 O8]'
_cell_volume [151.0193]
_cell_formula_units_Z [1]
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  1  0.4989  0.0030  0.9989  1.0
  Cr  Cr1  1  0.1560  0.4920  0.1818  1.0
  Cr  Cr2  1  0.3508  0.8137  0.4904  1.0
  Cr  Cr3  1  0.6747  0.1835  0.5091  1.0
  Cr  Cr4  1  0.8267  0.5111  0.8161  1.0
  O  O5  1  0.1584  0.2947  0.3769  1.0
  O  O6  1  0.1701  0.0486  0.6382  1.0
  O  O7  1  0.1985  0.6434  0.9477  1.0
  O  O8  1  0.4592  0.3723  0.7042  1.0
  O  O9  1  0.5341  0.6250  0.3015  1.0
  O  O10  1  0.7860  0.3643  0.0460  1.0
  O  O11  1  0.8373  0.6993  0.6267  1.0
  O  O12  1  0.8493  0.9492  0.3627  1.0
]