data_CdSiB2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.67
_cell_length_b   2.67
_cell_length_c   7.91
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CdSiB2
_chemical_formula_sum   'Cd1 Si1 B2'
_cell_volume   56.29
_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
  Cd  Cd2  1  0.33  0.33  0.74  1.0
  Si  Si3  1  0.0  0.0  0.56  1.0
  B  B0  1  0.33  0.33  0.83  1.0
  B  B1  1  0.0  0.0  0.73  1.0

data_CdSiB2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.77
_cell_length_b   3.77
_cell_length_c   7.91
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CdSiB2
_chemical_formula_sum   'Cd2 Si2 B4'
_cell_volume   112.59
_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
  Cd  Cd0  2  0.33  0.0  0.74  1.0
  Si  Si1  2  0.0  0.0  0.56  1.0
  B  B2  2  0.0  0.0  0.73  1.0
  B  B3  2  0.33  0.0  0.83  1.0

Cd Si B B
CdB2Si crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two CdB2Si clusters. Cd(1) is bonded in a distorted single-bond geometry to one B(1) and one B(2) atom. The Cd(1)-B(1) bond length is 0.71 Å. The Cd(1)-B(2) bond length is 1.26 Å. There are two inequivalent B sites. In the first B site, B(1) is bonded in a single-bond geometry to one Cd(1) atom. In the second B site, B(2) is bonded in a 2-coordinate geometry to one Cd(1) and one Si(1) atom. The B(2)-Si(1) bond length is 1.39 Å. Si(1) is bonded in a single-bond geometry to one B(2) atom.