data_CrB2W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.78
_cell_length_b   2.78
_cell_length_c   5.05
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrB2W
_chemical_formula_sum   'Cr1 B2 W1'
_cell_volume   39.07
_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
  Cr  Cr2  1  0.0  0.0  0.0  1.0
  B  B0  1  0.39  0.39  0.1  1.0
  B  B1  1  0.39  0.39  0.96  1.0
  W  W3  1  0.0  0.0  0.53  1.0

data_CrB2W
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.93
_cell_length_b   3.93
_cell_length_c   5.05
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CrB2W
_chemical_formula_sum   'Cr2 B4 W2'
_cell_volume   78.14
_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
  Cr  Cr0  2  0.0  0.0  0.0  1.0
  B  B1  2  0.39  0.0  0.1  1.0
  B  B2  2  0.39  0.0  0.96  1.0
  W  W3  2  0.0  0.0  0.53  1.0

Cr B B W
Cr B B W 0 2 o o - 0 1 o o o 0 3 o o o 0 3 o o - 1 2 o o - 1 3 + + o 1 3 + o o 1 3 o + o 1 3 o o o 2 3 + + o 2 3 + o o 2 3 o + o 2 3 o o o 3 3 + o o 3 3 o + o 
WCrB2 crystallizes in the monoclinic Cm space group. W(1) is bonded in a 1-coordinate geometry to two equivalent Cr(1) atoms. There is one shorter (2.39 Å) and one longer (2.66 Å) W(1)-Cr(1) bond length. Cr(1) is bonded in a 10-coordinate geometry to two equivalent W(1), four equivalent B(1), and four equivalent B(2) atoms. There are a spread of Cr(1)-B(1) bond distances ranging from 1.61-2.45 Å. There are a spread of Cr(1)-B(2) bond distances ranging from 1.55-2.41 Å. There are two inequivalent B sites. In the first B site, B(1) is bonded in a distorted single-bond geometry to four equivalent Cr(1) and one B(2) atom. The B(1)-B(2) bond length is 0.70 Å. In the second B site, B(2) is bonded in a 1-coordinate geometry to four equivalent Cr(1) and one B(1) atom.