data_MgZn2Re
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.81
_cell_length_b   4.81
_cell_length_c   4.81
_cell_angle_alpha   131.86
_cell_angle_beta   131.86
_cell_angle_gamma   70.45
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgZn2Re
_chemical_formula_sum   'Mg1 Zn2 Re1'
_cell_volume   60.64
_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
  Zn  Zn2  1  0.0  0.96  0.97  1.0
  Zn  Zn3  1  0.96  0.0  0.97  1.0
  Re  Re1  1  0.0  0.0  0.93  1.0

data_MgZn2Re
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.55
_cell_length_b   5.55
_cell_length_c   4.81
_cell_angle_alpha   90.0
_cell_angle_beta   125.22
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MgZn2Re
_chemical_formula_sum   'Mg2 Zn4 Re2'
_cell_volume   121.27
_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  0.0  0.0  0.0  1.0
  Zn  Zn1  4  0.02  0.02  1.0  1.0
  Re  Re2  2  0.07  0.0  0.07  1.0

Mg Zn Zn Re
Mg Zn Zn Re 0 2 - o - 0 1 o - - 0 3 o o - 1 3 o + o 2 3 + o o 
MgReZn2 is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two MgReZn2 clusters. Mg(1) is bonded in an L-shaped geometry to one Re(1) and two equivalent Zn(1) atoms. The Mg(1)-Re(1) bond length is 0.32 Å. Both Mg(1)-Zn(1) bond lengths are 0.14 Å. Re(1) is bonded in a 3-coordinate geometry to one Mg(1) and two equivalent Zn(1) atoms. Both Re(1)-Zn(1) bond lengths are 0.31 Å. Zn(1) is bonded in a distorted single-bond geometry to one Mg(1) and one Re(1) atom.