data_Cr3Hg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.81
_cell_length_b   3.7
_cell_length_c   5.61
_cell_angle_alpha   90.0
_cell_angle_beta   95.87
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cr3Hg
_chemical_formula_sum   'Cr3 Hg1'
_cell_volume   57.94
_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
  Cr  Cr0  1  0.09  0.85  0.58  1.0
  Cr  Cr1  1  0.15  0.85  0.0  1.0
  Cr  Cr2  1  0.0  0.0  0.0  1.0
  Hg  Hg3  1  0.71  0.0  0.79  1.0

data_Cr3Hg
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.81
_cell_length_b   3.7
_cell_length_c   5.61
_cell_angle_alpha   90.0
_cell_angle_beta   95.87
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cr3Hg
_chemical_formula_sum   'Cr3 Hg1'
_cell_volume   57.94
_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
  Cr  Cr0  1  0.0  0.0  0.0  1.0
  Cr  Cr1  1  0.09  0.85  0.58  1.0
  Cr  Cr2  1  0.15  0.85  0.0  1.0
  Hg  Hg3  1  0.71  0.0  0.79  1.0

Cr Cr Cr Hg