data_ReHgPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.84
_cell_length_b   4.84
_cell_length_c   5.14
_cell_angle_alpha   97.65
_cell_angle_beta   97.65
_cell_angle_gamma   33.95
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ReHgPt2
_chemical_formula_sum   'Re1 Hg1 Pt2'
_cell_volume   66.72
_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
  Re  Re3  1  0.0  0.0  0.0  1.0
  Hg  Hg0  1  0.28  0.0  0.55  1.0
  Pt  Pt1  1  0.71  0.0  0.16  1.0
  Pt  Pt2  1  0.84  0.0  0.93  1.0

data_ReHgPt2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.83
_cell_length_b   4.84
_cell_length_c   5.14
_cell_angle_alpha   97.65
_cell_angle_beta   90.0
_cell_angle_gamma   106.97
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ReHgPt2
_chemical_formula_sum   'Re1 Hg1 Pt2'
_cell_volume   66.72
_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
  Re  Re0  1  0.0  0.0  0.0  1.0
  Hg  Hg1  1  0.0  0.72  0.45  1.0
  Pt  Pt2  1  0.0  0.16  0.07  1.0
  Pt  Pt3  1  0.0  0.29  0.84  1.0

Re Hg Pt Pt
Re Hg Pt Pt 0 3 - o - 0 1 o o o 0 1 o o - 0 2 - o o 1 2 - o o 1 2 o o o 1 1 + - o 1 3 - o o 1 3 o o o 2 3 o o - 
RePt2Hg crystallizes in the triclinic P1 space group. Re(1) is bonded in a single-bond geometry to one Pt(1), one Pt(2), and two equivalent Hg(1) atoms. The Re(1)-Pt(1) bond length is 1.71 Å. The Re(1)-Pt(2) bond length is 0.83 Å. There is one shorter (2.84 Å) and one longer (2.94 Å) Re(1)-Hg(1) bond length. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 2-coordinate geometry to one Re(1), one Pt(2), and two equivalent Hg(1) atoms. The Pt(1)-Pt(2) bond length is 1.43 Å. There is one shorter (3.08 Å) and one longer (3.13 Å) Pt(1)-Hg(1) bond length. In the second Pt site, Pt(2) is bonded in a single-bond geometry to one Re(1), one Pt(1), and two equivalent Hg(1) atoms. There is one shorter (3.08 Å) and one longer (3.13 Å) Pt(2)-Hg(1) bond length. Hg(1) is bonded to two equivalent Re(1), two equivalent Pt(1), two equivalent Pt(2), and two equivalent Hg(1) atoms to form a mixture of distorted edge and corner-sharing HgRe2Hg2Pt4 hexagonal bipyramids. Both Hg(1)-Hg(1) bond lengths are 2.83 Å.