data_KMgCrAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.05
_cell_length_b   5.05
_cell_length_c   5.05
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KMgCrAu
_chemical_formula_sum   'K1 Mg1 Cr1 Au1'
_cell_volume   91.14
_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  K2  1  0.79  0.79  0.79  1.0
  Mg  Mg3  1  0.0  0.0  0.0  1.0
  Cr  Cr1  1  0.57  0.57  0.57  1.0
  Au  Au0  1  0.36  0.36  0.36  1.0

data_KMgCrAu
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.05
_cell_length_b   5.05
_cell_length_c   12.37
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   KMgCrAu
_chemical_formula_sum   'K3 Mg3 Cr3 Au3'
_cell_volume   273.42
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  3  0.0  0.0  0.21  1.0
  Mg  Mg1  3  0.0  0.0  0.0  1.0
  Cr  Cr2  3  0.0  0.0  0.43  1.0
  Au  Au3  3  0.0  0.0  0.64  1.0

K Mg Cr Au
K Mg Cr Au 0 1 + o + 0 1 o + + 0 1 + + o 0 1 + + + 0 2 o o o 0 2 o o + 0 2 + o o 0 2 o + o 0 3 o o + 0 3 o + o 0 3 + o o 1 2 - - o 1 2 - o - 1 2 o - - 1 3 - o o 1 3 o - o 1 3 o o - 2 3 o o o 2 3 o o + 2 3 + o o 2 3 o + o 
KMgCrAu crystallizes in the trigonal R3m space group. K(1) is bonded in a 11-coordinate geometry to four equivalent Mg(1), four equivalent Cr(1), and three equivalent Au(1) atoms. There is one shorter (2.65 Å) and three longer (3.27 Å) K(1)-Mg(1) bond lengths. There is one shorter (2.65 Å) and three longer (3.27 Å) K(1)-Cr(1) bond lengths. All K(1)-Au(1) bond lengths are 3.14 Å. Mg(1) is bonded in a 10-coordinate geometry to four equivalent K(1), three equivalent Cr(1), and three equivalent Au(1) atoms. All Mg(1)-Cr(1) bond lengths are 3.14 Å. All Mg(1)-Au(1) bond lengths are 2.93 Å. Cr(1) is bonded in a distorted linear geometry to four equivalent K(1), three equivalent Mg(1), and four equivalent Au(1) atoms. There is one shorter (2.65 Å) and three longer (3.27 Å) Cr(1)-Au(1) bond lengths. Au(1) is bonded in a 10-coordinate geometry to three equivalent K(1), three equivalent Mg(1), and four equivalent Cr(1) atoms.