data_CrRe4Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.21
_cell_length_b   5.21
_cell_length_c   5.21
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrRe4Sb
_chemical_formula_sum   'Cr1 Re4 Sb1'
_cell_volume   99.72
_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
  Cr  Cr0  1  0.0  0.0  0.0  1.0
  Re  Re1  1  0.6  0.6  0.76  1.0
  Re  Re2  1  0.6  0.76  0.6  1.0
  Re  Re3  1  0.76  0.6  0.6  1.0
  Re  Re4  1  0.76  0.76  0.76  1.0
  Sb  Sb5  1  0.52  0.52  0.52  1.0

data_CrRe4Sb
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.21
_cell_length_b   5.21
_cell_length_c   12.75
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   CrRe4Sb
_chemical_formula_sum   'Cr3 Re12 Sb3'
_cell_volume   299.16
_cell_formula_units_Z   3
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  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+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
  Cr  Cr0  3  0.0  0.0  0.0  1.0
  Re  Re1  9  0.05  0.11  0.35  1.0
  Re  Re2  3  0.0  0.0  0.24  1.0
  Sb  Sb3  3  0.0  0.0  0.48  1.0

Cr Re Re Re Re Sb
CrRe4Sb crystallizes in the trigonal R3m space group. Cr(1) is bonded in a 7-coordinate geometry to one Re(2) and six equivalent Re(1) atoms. The Cr(1)-Re(2) bond length is 3.06 Å. All Cr(1)-Re(1) bond lengths are 2.80 Å. There are two inequivalent Re sites. In the first Re site, Re(1) is bonded in a 2-coordinate geometry to two equivalent Cr(1), one Re(2), two equivalent Re(1), and one Sb(1) atom. The Re(1)-Re(2) bond length is 1.43 Å. Both Re(1)-Re(1) bond lengths are 0.82 Å. The Re(1)-Sb(1) bond length is 1.77 Å. In the second Re site, Re(2) is bonded in a 7-coordinate geometry to one Cr(1), three equivalent Re(1), and three equivalent Sb(1) atoms. All Re(2)-Sb(1) bond lengths are 3.24 Å. Sb(1) is bonded in a 6-coordinate geometry to three equivalent Re(1) and three equivalent Re(2) atoms.