data_LaMgSnAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.18
_cell_length_b   5.18
_cell_length_c   5.18
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaMgSnAu
_chemical_formula_sum   'La1 Mg1 Sn1 Au1'
_cell_volume   98.18
_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  La1  1  0.83  0.83  0.83  1.0
  Mg  Mg2  1  0.0  0.0  0.0  1.0
  Sn  Sn3  1  0.49  0.49  0.49  1.0
  Au  Au0  1  0.66  0.66  0.66  1.0

data_LaMgSnAu
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.18
_cell_length_b   5.18
_cell_length_c   12.68
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   LaMgSnAu
_chemical_formula_sum   'La3 Mg3 Sn3 Au3'
_cell_volume   294.53
_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
  La  La0  3  0.0  0.0  0.17  1.0
  Mg  Mg1  3  0.0  0.0  0.0  1.0
  Sn  Sn2  3  0.0  0.0  0.51  1.0
  Au  Au3  3  0.0  0.0  0.34  1.0

La Mg Sn Au
MgLaAuSn crystallizes in the trigonal R3m space group. Mg(1) is bonded to one La(1) and three equivalent Au(1) atoms to form MgLaAu3 trigonal pyramids that share  a cornercorner with one Au(1)LaMg3Sn trigonal bipyramid, corners with six equivalent Mg(1)LaAu3 trigonal pyramids, and edges with three equivalent Sn(1)La3Au trigonal pyramids. The Mg(1)-La(1) bond length is 2.15 Å. All Mg(1)-Au(1) bond lengths are 2.99 Å. La(1) is bonded in a 5-coordinate geometry to one Mg(1), one Au(1), and three equivalent Sn(1) atoms. The La(1)-Au(1) bond length is 2.15 Å. All La(1)-Sn(1) bond lengths are 2.99 Å. Au(1) is bonded to three equivalent Mg(1), one La(1), and one Sn(1) atom to form distorted AuLaMg3Sn trigonal bipyramids that share corners with six equivalent Au(1)LaMg3Sn trigonal bipyramids,  a cornercorner with one Mg(1)LaAu3 trigonal pyramid, and corners with three equivalent Sn(1)La3Au trigonal pyramids. The Au(1)-Sn(1) bond length is 2.15 Å. Sn(1) is bonded to three equivalent La(1) and one Au(1) atom to form distorted SnLa3Au trigonal pyramids that share corners with three equivalent Au(1)LaMg3Sn trigonal bipyramids, corners with six equivalent Sn(1)La3Au trigonal pyramids, and edges with three equivalent Mg(1)LaAu3 trigonal pyramids.