data_RbEu3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.38
_cell_length_b   7.38
_cell_length_c   7.38
_cell_angle_alpha   132.33
_cell_angle_beta   132.33
_cell_angle_gamma   69.7
_symmetry_Int_Tables_number   1
_chemical_formula_structural   RbEu3
_chemical_formula_sum   'Rb1 Eu3'
_cell_volume   215.19
_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  0.0  0.0  0.0  1.0
  Eu  Eu1  1  0.0  0.98  0.03  1.0
  Eu  Eu2  1  0.98  0.0  0.03  1.0
  Eu  Eu3  1  0.0  0.0  0.05  1.0

data_RbEu3
_symmetry_space_group_name_H-M   Cm
_cell_length_a   8.43
_cell_length_b   8.43
_cell_length_c   7.38
_cell_angle_alpha   90.0
_cell_angle_beta   124.85
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   RbEu3
_chemical_formula_sum   'Rb2 Eu6'
_cell_volume   430.38
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  0.0  0.0  0.0  1.0
  Eu  Eu1  4  0.46  0.49  0.95  1.0
  Eu  Eu2  2  0.45  0.5  0.95  1.0

Rb Eu Eu Eu
Rb Eu Eu Eu 0 2 - o o 0 1 o - o 1 3 o + o 1 2 - + o 2 3 + o o 