data_[K4Sr2Mg2Sb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sr  0.9500  2.0000  1.3200
  Mg  1.3100  1.5000  0.8600
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [5.0331]
_cell_length_b [9.9379]
_cell_length_c [8.3062]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [K2SrMgSb2]
_chemical_formula_sum '[K4 Sr2 Mg2 Sb4]'
_cell_volume [415.4656]
_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  2  0.0000  0.0831  0.9780  1.0
  K  K1  2  0.5000  0.1607  0.6614  1.0
  Sr  Sr2  2  0.5000  0.4531  0.0014  1.0
  Mg  Mg3  2  0.0000  0.3255  0.3466  1.0
  Sb  Sb4  2  0.0000  0.3932  0.7123  1.0
  Sb  Sb5  2  0.5000  0.1897  0.2547  1.0
]