data_CoRe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.71
_cell_length_b   5.71
_cell_length_c   5.71
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CoRe2
_chemical_formula_sum   'Co4 Re8'
_cell_volume   185.8
_cell_formula_units_Z   4
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
  Co  Co0  1  0.0  0.0  0.0  1.0
  Co  Co1  1  0.0  0.85  0.85  1.0
  Co  Co2  1  0.85  0.0  0.85  1.0
  Co  Co3  1  0.85  0.85  0.0  1.0
  Re  Re4  1  0.68  0.53  0.03  1.0
  Re  Re5  1  0.68  0.03  0.17  1.0
  Re  Re6  1  0.17  0.68  0.03  1.0
  Re  Re7  1  0.17  0.17  0.17  1.0
  Re  Re8  1  0.53  0.53  0.53  1.0
  Re  Re9  1  0.53  0.03  0.68  1.0
  Re  Re10  1  0.03  0.68  0.53  1.0
  Re  Re11  1  0.03  0.17  0.68  1.0

data_CoRe2
_symmetry_space_group_name_H-M   R3
_cell_length_a   8.07
_cell_length_b   8.07
_cell_length_c   9.88
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   146
_chemical_formula_structural   CoRe2
_chemical_formula_sum   'Co12 Re24'
_cell_volume   557.4
_cell_formula_units_Z   12
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  'x+1/3, y+2/3, z+2/3'
  5  '-y+1/3, x-y+2/3, z+2/3'
  6  '-x+y+1/3, -x+2/3, z+2/3'
  7  'x+2/3, y+1/3, z+1/3'
  8  '-y+2/3, x-y+1/3, z+1/3'
  9  '-x+y+2/3, -x+1/3, z+1/3'
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
  Co  Co0  9  0.1  0.05  0.9  1.0
  Co  Co1  3  0.0  0.0  0.0  1.0
  Re  Re2  9  0.05  0.45  0.63  1.0
  Re  Re3  9  0.12  0.73  0.41  1.0
  Re  Re4  3  0.0  0.0  0.17  1.0
  Re  Re5  3  0.0  0.0  0.53  1.0

Co Co Co Co Re Re Re Re Re Re Re Re
Re2Co crystallizes in the trigonal R3 space group. There are four inequivalent Re sites. In the first Re site, Re(1) is bonded in a distorted single-bond geometry to two equivalent Re(4) and one Co(2) atom. There is one shorter (2.95 Å) and one longer (3.00 Å) Re(1)-Re(4) bond length. The Re(1)-Co(2) bond length is 2.09 Å. In the second Re site, Re(2) is bonded in a distorted single-bond geometry to one Co(2) atom. The Re(2)-Co(2) bond length is 1.72 Å. In the third Re site, Re(3) is bonded in a single-bond geometry to one Co(1) atom. The Re(3)-Co(1) bond length is 1.72 Å. In the fourth Re site, Re(4) is bonded in a 6-coordinate geometry to six equivalent Re(1) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 4-coordinate geometry to one Re(3) and three equivalent Co(2) atoms. All Co(1)-Co(2) bond lengths are 1.19 Å. In the second Co site, Co(2) is bonded in a 5-coordinate geometry to one Re(1), one Re(2), one Co(1), and two equivalent Co(2) atoms. Both Co(2)-Co(2) bond lengths are 1.19 Å.