data_[Ho1Mg1Cl4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Mg  1.3100  1.5000  0.8600
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [6.9400]
_cell_length_b [3.5438]
_cell_length_c [7.1826]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.1667]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [HoMgCl4]
_chemical_formula_sum '[Ho1 Mg1 Cl4]'
_cell_volume [169.6608]
_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
[
  Ho  Ho0  1  0.0000  0.5000  0.5000  1
  Mg  Mg1  1  0.5000  0.0000  0.5000  1
  Cl  Cl2  2  0.2740  0.0000  0.7231  1
  Cl  Cl3  2  0.2799  0.5000  0.2993  1
]