data_[Mg4Ag4Cl14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Ag  1.9300  1.6000  1.0867
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.8798]
_cell_length_b [11.8742]
_cell_length_c [6.5940]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.4677]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Mg2Ag2Cl7]
_chemical_formula_sum '[Mg4 Ag4 Cl14]'
_cell_volume [616.3995]
_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
[
  Mg  Mg0  4  0.2160  0.5000  0.1113  1
  Ag  Ag1  4  0.0000  0.3049  0.5000  1
  Cl  Cl2  8  0.2467  0.3168  0.2757  1
  Cl  Cl3  4  0.0860  0.5000  0.7664  1
  Cl  Cl4  2  0.0000  0.0000  0.0000  1
]