data_KY2Sn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.1
_cell_length_b   5.1
_cell_length_c   4.75
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KY2Sn
_chemical_formula_sum   'K1 Y2 Sn1'
_cell_volume   123.53
_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  K0  1  0.0  0.0  0.0  1.0
  Y  Y2  1  0.55  0.0  0.37  1.0
  Y  Y3  1  0.0  0.55  0.37  1.0
  Sn  Sn1  1  0.55  0.55  0.0  1.0

data_KY2Sn
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.21
_cell_length_b   7.21
_cell_length_c   4.75
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   KY2Sn
_chemical_formula_sum   'K2 Y4 Sn2'
_cell_volume   247.05
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  K0  2  0.0  0.0  0.0  1.0
  Y  Y1  4  0.28  0.28  0.37  1.0
  Sn  Sn2  2  0.05  0.5  0.0  1.0

K Y Y Sn
KY2Sn crystallizes in the monoclinic Cm space group. K(1) is bonded in a 12-coordinate geometry to eight equivalent Y(1) and four equivalent Sn(1) atoms. There are a spread of K(1)-Y(1) bond distances ranging from 2.90-4.09 Å. There are a spread of K(1)-Sn(1) bond distances ranging from 3.25-3.97 Å. Y(1) is bonded in a 12-coordinate geometry to four equivalent K(1), four equivalent Y(1), and four equivalent Sn(1) atoms. There are a spread of Y(1)-Y(1) bond distances ranging from 3.25-3.97 Å. There are a spread of Y(1)-Sn(1) bond distances ranging from 2.90-4.09 Å. Sn(1) is bonded in a 10-coordinate geometry to four equivalent K(1) and eight equivalent Y(1) atoms.