data_CsSn3H
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.15
_cell_length_b   5.15
_cell_length_c   5.15
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CsSn3H
_chemical_formula_sum   'Cs1 Sn3 H1'
_cell_volume   136.75
_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
  Cs  Cs0  1  0.58  0.58  0.58  1.0
  Sn  Sn2  1  0.0  0.58  0.0  1.0
  Sn  Sn3  1  0.0  0.0  0.58  1.0
  Sn  Sn4  1  0.58  0.0  0.0  1.0
  H  H1  1  0.0  0.0  0.0  1.0

data_CsSn3H
_symmetry_space_group_name_H-M   R3m
_cell_length_a   7.29
_cell_length_b   7.29
_cell_length_c   8.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   CsSn3H
_chemical_formula_sum   'Cs3 Sn9 H3'
_cell_volume   410.24
_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
  Cs  Cs0  3  0.0  0.0  0.58  1.0
  Sn  Sn1  9  0.05  0.53  0.53  1.0
  H  H2  3  0.0  0.0  0.0  1.0

Cs Sn Sn Sn H
CsSn3H crystallizes in the trigonal R3m space group. Cs(1) is bonded to twelve equivalent Sn(1) atoms to form a mixture of distorted corner and face-sharing CsSn12 cuboctahedra. There are a spread of Cs(1)-Sn(1) bond distances ranging from 3.09-4.20 Å. Sn(1) is bonded in a 2-coordinate geometry to four equivalent Cs(1) and one H(1) atom. The Sn(1)-H(1) bond length is 2.18 Å. H(1) is bonded in a distorted T-shaped geometry to three equivalent Sn(1) atoms.