data_Re2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.86
_cell_length_b   3.86
_cell_length_c   2.89
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Re2C
_chemical_formula_sum   'Re2 C1'
_cell_volume   37.28
_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  Re1  1  0.0  0.23  0.26  1.0
  Re  Re2  1  0.93  0.12  0.63  1.0
  C  C0  1  0.0  0.0  0.0  1.0

data_Re2C
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.89
_cell_length_b   3.86
_cell_length_c   3.86
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Re2C
_chemical_formula_sum   'Re2 C1'
_cell_volume   37.28
_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  0.26  -0.0  0.23  1.0
  Re  Re1  1  0.63  0.93  0.12  1.0
  C  C2  1  0.0  0.0  0.0  1.0

Re Re C
Re2C is Hg_xSn structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Re2C cluster. There are two inequivalent Re sites. In the first Re site, Re(1) is bonded in a distorted single-bond geometry to one C(1) atom. The Re(1)-C(1) bond length is 1.16 Å. In the second Re site, Re(2) is bonded in a distorted single-bond geometry to one C(1) atom. The Re(2)-C(1) bond length is 1.25 Å. C(1) is bonded in a water-like geometry to one Re(1) and one Re(2) atom.