data_MgCoRe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.95
_cell_length_b   5.95
_cell_length_c   5.95
_cell_angle_alpha   153.12
_cell_angle_beta   153.12
_cell_angle_gamma   38.38
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgCoRe
_chemical_formula_sum   'Mg1 Co1 Re1'
_cell_volume   43.01
_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  Mg1  1  0.0  0.0  0.84  1.0
  Co  Co0  1  0.0  0.0  0.14  1.0
  Re  Re2  1  0.0  0.0  0.27  1.0

data_MgCoRe
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.91
_cell_length_b   3.91
_cell_length_c   5.95
_cell_angle_alpha   90.0
_cell_angle_beta   109.19
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MgCoRe
_chemical_formula_sum   'Mg2 Co2 Re2'
_cell_volume   86.03
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.34  0.5  0.84  1.0
  Co  Co1  2  0.14  0.0  0.14  1.0
  Re  Re2  2  0.27  0.0  0.27  1.0

Mg Co Re
Mg Co Re 0 1 o o + 1 2 o o o 
MgReCo is Cyanogen Chloride-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two MgReCo clusters. Mg(1) is bonded in a single-bond geometry to one Co(1) atom. The Mg(1)-Co(1) bond length is 1.79 Å. Re(1) is bonded in a single-bond geometry to one Co(1) atom. The Re(1)-Co(1) bond length is 0.77 Å. Co(1) is bonded in a linear geometry to one Mg(1) and one Re(1) atom.