data_YFe2Sn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.08
_cell_length_b   5.3
_cell_length_c   5.3
_cell_angle_alpha   41.18
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YFe2Sn
_chemical_formula_sum   'Y1 Fe2 Sn1'
_cell_volume   75.24
_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
  Y  Y3  1  0.0  0.0  0.88  1.0
  Fe  Fe0  1  0.04  0.0  0.93  1.0
  Fe  Fe1  1  0.0  0.0  0.11  1.0
  Sn  Sn2  1  0.04  0.0  0.9  1.0

data_YFe2Sn
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.72
_cell_length_b   4.08
_cell_length_c   5.3
_cell_angle_alpha   90.0
_cell_angle_beta   110.59
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YFe2Sn
_chemical_formula_sum   'Y1 Fe2 Sn1'
_cell_volume   75.24
_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
  Y  Y0  1  0.12  0.0  0.12  1.0
  Fe  Fe1  1  0.07  0.04  0.07  1.0
  Fe  Fe2  1  0.89  0.0  0.89  1.0
  Sn  Sn3  1  0.1  0.04  0.1  1.0

Y Fe Fe Sn
Y Fe Fe Sn 0 3 o o o 1 3 o o o 1 2 o o + 2 3 o o - 
Fe2YSn crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Fe2YSn cluster. Y(1) is bonded in a single-bond geometry to one Sn(1) atom. The Y(1)-Sn(1) bond length is 0.20 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a distorted single-bond geometry to one Fe(2) and one Sn(1) atom. The Fe(1)-Fe(2) bond length is 1.00 Å. The Fe(1)-Sn(1) bond length is 0.14 Å. In the second Fe site, Fe(2) is bonded in a single-bond geometry to one Fe(1) atom. Sn(1) is bonded in a bent 120 degrees geometry to one Y(1) and one Fe(1) atom.