data_LaAsAu3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.0
_cell_length_b   5.0
_cell_length_c   5.0
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaAsAu3
_chemical_formula_sum   'La1 As1 Au3'
_cell_volume   125.36
_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
  La  La4  1  0.5  0.5  0.5  1.0
  As  As0  1  0.0  0.0  0.0  1.0
  Au  Au1  1  0.0  0.5  0.0  1.0
  Au  Au2  1  0.0  0.0  0.5  1.0
  Au  Au3  1  0.5  0.0  0.0  1.0

data_LaAsAu3
_symmetry_space_group_name_H-M   Pm-3m
_cell_length_a   5.0
_cell_length_b   5.0
_cell_length_c   5.0
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   221
_chemical_formula_structural   LaAsAu3
_chemical_formula_sum   'La1 As1 Au3'
_cell_volume   125.36
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-x, -y, -z'
  3  '-y, x, z'
  4  'y, -x, -z'
  5  '-x, -y, z'
  6  'x, y, -z'
  7  'y, -x, z'
  8  '-y, x, -z'
  9  'x, -y, -z'
  10  '-x, y, z'
  11  '-y, -x, -z'
  12  'y, x, z'
  13  '-x, y, -z'
  14  'x, -y, z'
  15  'y, x, -z'
  16  '-y, -x, z'
  17  'z, x, y'
  18  '-z, -x, -y'
  19  'z, -y, x'
  20  '-z, y, -x'
  21  'z, -x, -y'
  22  '-z, x, y'
  23  'z, y, -x'
  24  '-z, -y, x'
  25  '-z, x, -y'
  26  'z, -x, y'
  27  '-z, -y, -x'
  28  'z, y, x'
  29  '-z, -x, y'
  30  'z, x, -y'
  31  '-z, y, x'
  32  'z, -y, -x'
  33  'y, z, x'
  34  '-y, -z, -x'
  35  'x, z, -y'
  36  '-x, -z, y'
  37  '-y, z, -x'
  38  'y, -z, x'
  39  '-x, z, y'
  40  'x, -z, -y'
  41  '-y, -z, x'
  42  'y, z, -x'
  43  '-x, -z, -y'
  44  'x, z, y'
  45  'y, -z, -x'
  46  '-y, z, x'
  47  'x, -z, y'
  48  '-x, z, -y'
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
  La  La0  1  0.5  0.5  0.5  1.0
  As  As1  1  0.0  0.0  0.0  1.0
  Au  Au2  3  0.0  0.0  0.5  1.0

La As Au Au Au
LaAu3As is (Cubic) Perovskite structured and crystallizes in the trigonal R3m space group. La(1) is bonded to twelve equivalent Au(1) atoms to form LaAu12 cuboctahedra that share corners with twelve equivalent La(1)Au12 cuboctahedra, faces with six equivalent La(1)Au12 cuboctahedra, and faces with eight equivalent As(1)Au6 octahedra. There are a spread of La(1)-Au(1) bond distances ranging from 3.52-3.56 Å. Au(1) is bonded to four equivalent La(1) and two equivalent As(1) atoms to form a mixture of distorted corner, edge, and face-sharing AuLa4As2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. There is one shorter (2.49 Å) and one longer (2.51 Å) Au(1)-As(1) bond length. As(1) is bonded to six equivalent Au(1) atoms to form AsAu6 octahedra that share corners with six equivalent As(1)Au6 octahedra and faces with eight equivalent La(1)Au12 cuboctahedra. The corner-sharing octahedra are not tilted.