data_SrLa4Sn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.77
_cell_length_b   6.77
_cell_length_c   6.77
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrLa4Sn
_chemical_formula_sum   'Sr1 La4 Sn1'
_cell_volume   219.46
_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
  Sr  Sr5  1  0.0  0.0  0.0  1.0
  La  La0  1  0.96  0.96  0.62  1.0
  La  La1  1  0.96  0.62  0.96  1.0
  La  La2  1  0.62  0.96  0.96  1.0
  La  La3  1  0.62  0.62  0.62  1.0
  Sn  Sn4  1  0.18  0.18  0.18  1.0

data_SrLa4Sn
_symmetry_space_group_name_H-M   R3m
_cell_length_a   6.77
_cell_length_b   6.77
_cell_length_c   16.58
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   SrLa4Sn
_chemical_formula_sum   'Sr3 La12 Sn3'
_cell_volume   658.37
_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
  Sr  Sr0  3  0.0  0.0  0.0  1.0
  La  La1  9  0.22  0.44  0.82  1.0
  La  La2  3  0.0  0.0  0.38  1.0
  Sn  Sn3  3  0.0  0.0  0.82  1.0

Sr La La La La Sn
Sr La La La La Sn 0 3 - - - 0 2 - - - 0 1 - - - 0 5 o o o 0 4 o - - 0 4 - o - 0 4 - - o 1 2 o o o 1 3 o o o 1 5 + + o 1 4 + o o 1 4 o + o 1 4 o o o 2 3 o o o 2 5 + o + 2 4 + o o 2 4 o o + 2 4 o o o 3 5 o + + 3 4 o + o 3 4 o o + 3 4 o o o 4 5 o o + 4 5 o + o 4 5 + o o 
SrLa4Sn crystallizes in the trigonal R3m space group. Sr(1) is bonded in a 1-coordinate geometry to three equivalent La(2) and one Sn(1) atom. All Sr(1)-La(2) bond lengths are 4.00 Å. The Sr(1)-Sn(1) bond length is 3.01 Å. There are two inequivalent La sites. In the first La site, La(1) is bonded in a distorted single-bond geometry to three equivalent La(2) and one Sn(1) atom. There are two shorter (3.85 Å) and one longer (4.02 Å) La(1)-La(2) bond length. The La(1)-Sn(1) bond length is 2.57 Å. In the second La site, La(2) is bonded in a 12-coordinate geometry to three equivalent Sr(1) and nine equivalent La(1) atoms. Sn(1) is bonded in a trigonal pyramidal geometry to one Sr(1) and three equivalent La(1) atoms.