data_[K4Rb2Mg2F12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  Mg  1.3100  1.5000  0.8600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [6.3314]
_cell_length_b [6.6062]
_cell_length_c [10.8926]
_cell_angle_alpha [90.0000]
_cell_angle_beta [125.0960]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [K2RbMgF6]
_chemical_formula_sum '[K4 Rb2 Mg2 F12]'
_cell_volume [372.7695]
_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
[
  K  K0  4  0.2730  0.5545  0.7553  1.0
  Rb  Rb1  2  0.5000  0.0000  0.0000  1.0
  Mg  Mg2  2  0.0000  0.0000  0.5000  1.0
  F  F3  4  0.0849  0.5637  0.2039  1.0
  F  F4  4  0.2304  0.2493  0.5781  1.0
  F  F5  4  0.3073  0.6670  0.0504  1.0
]