data_AlHg2Cl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.11
_cell_length_b   3.39
_cell_length_c   6.77
_cell_angle_alpha   90.0
_cell_angle_beta   111.63
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlHg2Cl
_chemical_formula_sum   'Al1 Hg2 Cl1'
_cell_volume   108.76
_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
  Al  Al0  1  0.07  0.0  0.55  1.0
  Hg  Hg2  1  0.51  0.0  0.18  1.0
  Hg  Hg3  1  0.94  0.69  0.77  1.0
  Cl  Cl1  1  0.46  0.69  0.23  1.0

data_AlHg2Cl
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.39
_cell_length_b   5.11
_cell_length_c   6.77
_cell_angle_alpha   111.63
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlHg2Cl
_chemical_formula_sum   'Al1 Hg2 Cl1'
_cell_volume   108.76
_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
  Al  Al0  1  0.0  0.93  0.45  1.0
  Hg  Hg1  1  0.0  0.49  0.82  1.0
  Hg  Hg2  1  0.31  0.06  0.23  1.0
  Cl  Cl3  1  0.31  0.54  0.77  1.0

Al Hg Hg Cl