data_KLaBe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.4
_cell_length_b   9.4
_cell_length_c   9.4
_cell_angle_alpha   23.92
_cell_angle_beta   23.92
_cell_angle_gamma   23.92
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KLaBe2
_chemical_formula_sum   'K1 La1 Be2'
_cell_volume   119.9
_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
  La  La3  1  0.0  0.0  0.69  1.0
  Be  Be0  1  0.0  0.0  0.53  1.0
  Be  Be1  1  0.0  0.0  0.85  1.0

data_KLaBe2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.75
_cell_length_b   3.89
_cell_length_c   9.4
_cell_angle_alpha   90.0
_cell_angle_beta   103.84
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   KLaBe2
_chemical_formula_sum   'K2 La2 Be4'
_cell_volume   239.8
_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
  La  La1  2  0.0  0.0  0.31  1.0
  Be  Be2  2  0.0  0.0  0.15  1.0
  Be  Be3  2  0.0  0.0  0.47  1.0

K La Be Be
KBe2La is Cyanogen Chloride-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two KBe2La clusters. K(1) is bonded in a single-bond geometry to one Be(2) atom. The K(1)-Be(2) bond length is 1.41 Å. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded in a single-bond geometry to one La(1) atom. The Be(1)-La(1) bond length is 1.51 Å. In the second Be site, Be(2) is bonded in a linear geometry to one K(1) and one La(1) atom. The Be(2)-La(1) bond length is 1.51 Å. La(1) is bonded in a linear geometry to one Be(1) and one Be(2) atom.