data_Si2HgPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.13
_cell_length_b   4.13
_cell_length_c   7.53
_cell_angle_alpha   116.26
_cell_angle_beta   116.26
_cell_angle_gamma   46.75
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2HgPt
_chemical_formula_sum   'Si2 Hg1 Pt1'
_cell_volume   81.82
_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
  Si  Si2  1  0.24  0.0  0.04  1.0
  Si  Si3  1  0.71  0.0  0.55  1.0
  Hg  Hg0  1  0.19  0.0  0.3  1.0
  Pt  Pt1  1  0.0  0.0  0.0  1.0

data_Si2HgPt
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.27
_cell_length_b   4.13
_cell_length_c   6.8
_cell_angle_alpha   83.28
_cell_angle_beta   76.06
_cell_angle_gamma   66.63
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2HgPt
_chemical_formula_sum   'Si2 Hg1 Pt1'
_cell_volume   81.82
_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
  Si  Si0  1  0.0  0.16  0.55  1.0
  Si  Si1  1  0.0  0.19  0.04  1.0
  Hg  Hg2  1  0.0  0.89  0.3  1.0
  Pt  Pt3  1  0.0  0.0  0.0  1.0

Si Si Hg Pt