data_KY2Fe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.62
_cell_length_b   6.62
_cell_length_c   6.15
_cell_angle_alpha   112.25
_cell_angle_beta   112.25
_cell_angle_gamma   30.86
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KY2Fe
_chemical_formula_sum   'K1 Y2 Fe1'
_cell_volume   127.35
_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  K1  1  0.56  0.0  0.48  1.0
  Y  Y2  1  0.42  0.0  0.29  1.0
  Y  Y3  1  0.72  0.0  0.76  1.0
  Fe  Fe0  1  0.19  0.0  0.61  1.0

data_KY2Fe
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.53
_cell_length_b   6.15
_cell_length_c   6.62
_cell_angle_alpha   112.25
_cell_angle_beta   105.43
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KY2Fe
_chemical_formula_sum   'K1 Y2 Fe1'
_cell_volume   127.35
_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  0.48  0.56  1.0
  Y  Y1  1  0.0  0.29  0.42  1.0
  Y  Y2  1  0.0  0.76  0.72  1.0
  Fe  Fe3  1  0.0  0.61  0.19  1.0

K Y Y Fe
KY2Fe crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one KY2Fe cluster. K(1) is bonded in a distorted linear geometry to one Y(1), one Y(2), and one Fe(1) atom. The K(1)-Y(1) bond length is 1.16 Å. The K(1)-Y(2) bond length is 1.64 Å. The K(1)-Fe(1) bond length is 2.83 Å. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a single-bond geometry to one K(1) atom. In the second Y site, Y(2) is bonded in a single-bond geometry to one K(1) atom. Fe(1) is bonded in a 1-coordinate geometry to one K(1) atom.