data_KSrNb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.6
_cell_length_b   9.59
_cell_length_c   3.32
_cell_angle_alpha   80.22
_cell_angle_beta   79.87
_cell_angle_gamma   19.91
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KSrNb
_chemical_formula_sum   'K1 Sr1 Nb1'
_cell_volume   102.35
_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  0.32  0.37  0.35  1.0
  Sr  Sr2  1  0.32  0.37  0.66  1.0
  Nb  Nb1  1  0.32  0.37  0.6  1.0

data_KSrNb
_symmetry_space_group_name_H-M   Imm2
_cell_length_a   3.32
_cell_length_b   18.61
_cell_length_c   3.32
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   44
_chemical_formula_structural   KSrNb
_chemical_formula_sum   'K2 Sr2 Nb2'
_cell_volume   204.73
_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, y, z'
  4  'x, -y, z'
  5  'x+1/2, y+1/2, z+1/2'
  6  '-x+1/2, -y+1/2, z+1/2'
  7  '-x+1/2, y+1/2, z+1/2'
  8  'x+1/2, -y+1/2, z+1/2'
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  0.29  1.0
  Sr  Sr1  2  0.0  0.0  0.98  1.0
  Nb  Nb2  2  0.0  0.0  0.03  1.0

K Sr Nb
K Sr Nb 0 2 o o o 0 1 o o o 1 2 o o o 
KSrNb crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two KSrNb clusters. K(1) is bonded in a distorted single-bond geometry to one Nb(1) atom. The K(1)-Nb(1) bond length is 0.85 Å. Sr(1) is bonded in a single-bond geometry to one Nb(1) atom. The Sr(1)-Nb(1) bond length is 0.17 Å. Nb(1) is bonded in a linear geometry to one K(1) and one Sr(1) atom.