data_MgMo2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.29
_cell_length_b   3.29
_cell_length_c   6.36
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgMo2Au
_chemical_formula_sum   'Mg1 Mo2 Au1'
_cell_volume   68.74
_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  0.73  1.0
  Mo  Mo2  1  0.64  0.64  0.18  1.0
  Mo  Mo3  1  0.0  0.0  0.37  1.0
  Au  Au0  1  0.64  0.64  0.26  1.0

data_MgMo2Au
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.65
_cell_length_b   4.65
_cell_length_c   6.36
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MgMo2Au
_chemical_formula_sum   'Mg2 Mo4 Au2'
_cell_volume   137.47
_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  0.73  1.0
  Mo  Mo1  2  0.0  0.0  0.37  1.0
  Mo  Mo2  2  0.14  0.5  0.18  1.0
  Au  Au3  2  0.14  0.5  0.26  1.0

Mg Mo Mo Au
Mg Mo Mo Au 0 2 o o o 1 3 o o o 1 2 + + o 2 3 - - o 
MgMo2Au crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two MgMo2Au clusters. Mg(1) is bonded in a distorted single-bond geometry to one Mo(2) atom. The Mg(1)-Mo(2) bond length is 2.30 Å. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a single-bond geometry to one Au(1) atom. The Mo(1)-Au(1) bond length is 0.49 Å. In the second Mo site, Mo(2) is bonded in a 2-coordinate geometry to one Mg(1) and one Au(1) atom. The Mo(2)-Au(1) bond length is 1.81 Å. Au(1) is bonded in a single-bond geometry to one Mo(1) and one Mo(2) atom.