data_KSrFe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.95
_cell_length_b   4.48
_cell_length_c   7.68
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KSrFe2
_chemical_formula_sum   'K1 Sr1 Fe2'
_cell_volume   135.96
_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  K2  1  0.0  0.0  0.0  1.0
  Sr  Sr3  1  0.0  0.0  0.84  1.0
  Fe  Fe0  1  0.97  0.24  0.94  1.0
  Fe  Fe1  1  0.97  0.24  0.74  1.0

data_KSrFe2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.95
_cell_length_b   4.48
_cell_length_c   7.68
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KSrFe2
_chemical_formula_sum   'K1 Sr1 Fe2'
_cell_volume   135.96
_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
  Sr  Sr1  1  0.0  0.0  0.84  1.0
  Fe  Fe2  1  0.97  0.24  0.74  1.0
  Fe  Fe3  1  0.97  0.24  0.94  1.0

K Sr Fe Fe
KSrFe2 is alpha Niobium phosphide-derived structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one KSrFe2 cluster. K(1) is bonded in a 2-coordinate geometry to one Sr(1) and one Fe(1) atom. The K(1)-Sr(1) bond length is 1.22 Å. The K(1)-Fe(1) bond length is 1.18 Å. Sr(1) is bonded in a 3-coordinate geometry to one K(1), one Fe(1), and one Fe(2) atom. The Sr(1)-Fe(1) bond length is 1.34 Å. The Sr(1)-Fe(2) bond length is 1.34 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 2-coordinate geometry to one K(1) and one Sr(1) atom. In the second Fe site, Fe(2) is bonded in a distorted single-bond geometry to one Sr(1) atom.