data_MgRe2Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.36
_cell_length_b   5.36
_cell_length_c   5.36
_cell_angle_alpha   144.8
_cell_angle_beta   127.93
_cell_angle_gamma   64.41
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgRe2Sb
_chemical_formula_sum   'Mg1 Re2 Sb1'
_cell_volume   69.08
_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
  Mg  Mg0  1  0.0  0.0  0.0  1.0
  Re  Re1  1  0.0  0.35  0.13  1.0
  Re  Re2  1  0.62  0.0  0.41  1.0
  Sb  Sb3  1  0.0  0.0  0.53  1.0

data_MgRe2Sb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.24
_cell_length_b   4.7
_cell_length_c   5.36
_cell_angle_alpha   116.04
_cell_angle_beta   107.6
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgRe2Sb
_chemical_formula_sum   'Mg1 Re2 Sb1'
_cell_volume   69.08
_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
  Mg  Mg0  1  0.0  0.0  0.0  1.0
  Re  Re1  1  0.0  0.41  0.79  1.0
  Re  Re2  1  0.65  0.77  0.77  1.0
  Sb  Sb3  1  0.0  0.53  0.53  1.0

Mg Re Re Sb
MgRe2Sb crystallizes in the triclinic P1 space group. Mg(1) is bonded in a distorted single-bond geometry to one Re(1), one Re(2), and one Sb(1) atom. The Mg(1)-Re(1) bond length is 1.39 Å. The Mg(1)-Re(2) bond length is 2.62 Å. The Mg(1)-Sb(1) bond length is 2.86 Å. There are two inequivalent Re sites. In the first Re site, Re(1) is bonded in a distorted single-bond geometry to one Mg(1) and two equivalent Sb(1) atoms. There is one shorter (1.96 Å) and one longer (2.11 Å) Re(1)-Sb(1) bond length. In the second Re site, Re(2) is bonded in a 2-coordinate geometry to one Mg(1) and one Sb(1) atom. The Re(2)-Sb(1) bond length is 1.71 Å. Sb(1) is bonded in a 4-coordinate geometry to one Mg(1), one Re(2), and two equivalent Re(1) atoms.