data_CoAsW2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.93
_cell_length_b   2.93
_cell_length_c   6.67
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CoAsW2
_chemical_formula_sum   'Co1 As1 W2'
_cell_volume   57.33
_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
  Co  Co1  1  0.0  0.0  0.0  1.0
  As  As0  1  0.0  0.0  0.34  1.0
  W  W2  1  0.47  0.47  0.67  1.0
  W  W3  1  0.47  0.47  0.01  1.0

data_CoAsW2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.14
_cell_length_b   4.14
_cell_length_c   6.67
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CoAsW2
_chemical_formula_sum   'Co2 As2 W4'
_cell_volume   114.65
_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
  Co  Co0  2  0.0  0.0  0.0  1.0
  As  As1  2  0.0  0.0  0.34  1.0
  W  W2  2  0.47  0.0  0.01  1.0
  W  W3  2  0.47  0.0  0.67  1.0

Co As W W
Co As W W 0 3 - - o 0 3 - o o 0 3 o - o 0 3 o o o 0 1 o o o 0 2 o o - 0 2 o - - 0 2 - o - 0 2 - - - 1 3 - - o 1 3 - o o 1 3 o - o 1 3 o o o 1 2 - - o 1 2 - o o 1 2 o - o 1 2 o o o 1 1 + o o 1 1 o + o 2 2 + o o 2 2 o + o 2 3 o o + 
W2CoAs crystallizes in the monoclinic Cm space group. There are two inequivalent W sites. In the first W site, W(1) is bonded in a 13-coordinate geometry to one W(2), four equivalent W(1), four equivalent Co(1), and four equivalent As(1) atoms. The W(1)-W(2) bond length is 2.25 Å. All W(1)-W(1) bond lengths are 2.93 Å. There are a spread of W(1)-Co(1) bond distances ranging from 2.94-3.13 Å. There are a spread of W(1)-As(1) bond distances ranging from 2.93-3.13 Å. In the second W site, W(2) is bonded in a distorted square co-planar geometry to one W(1) and four equivalent Co(1) atoms. There are a spread of W(2)-Co(1) bond distances ranging from 1.93-2.22 Å. Co(1) is bonded to four equivalent W(1), four equivalent W(2), and one As(1) atom to form a mixture of distorted edge and face-sharing CoAsW8 square pyramids. The Co(1)-As(1) bond length is 2.25 Å. As(1) is bonded in a distorted single-bond geometry to four equivalent W(1) and one Co(1) atom.