data_KMgAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.87
_cell_length_b   6.87
_cell_length_c   6.87
_cell_angle_alpha   148.63
_cell_angle_beta   148.63
_cell_angle_gamma   44.95
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KMgAu
_chemical_formula_sum   'K1 Mg1 Au1'
_cell_volume   87.63
_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
  K  K1  1  0.0  0.0  0.37  1.0
  Mg  Mg2  1  0.0  0.0  0.76  1.0
  Au  Au0  1  0.0  0.0  0.57  1.0

data_KMgAu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.25
_cell_length_b   5.25
_cell_length_c   6.87
_cell_angle_alpha   90.0
_cell_angle_beta   112.48
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   KMgAu
_chemical_formula_sum   'K2 Mg2 Au2'
_cell_volume   175.25
_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
  K  K0  2  0.37  0.0  0.37  1.0
  Mg  Mg1  2  0.26  0.5  0.76  1.0
  Au  Au2  2  0.07  0.5  0.57  1.0

K Mg Au
KMgAu is Cyanogen Chloride-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two KMgAu clusters. K(1) is bonded in a single-bond geometry to one Au(1) atom. The K(1)-Au(1) bond length is 1.43 Å. Mg(1) is bonded in a single-bond geometry to one Au(1) atom. The Mg(1)-Au(1) bond length is 1.28 Å. Au(1) is bonded in a linear geometry to one K(1) and one Mg(1) atom.