The structure described by CrAs2 crystallizes in the monoclinic C2/m space group. Cr(1) is bonded in a 8-coordinate geometry to three equivalent As(2) and five equivalent As(1) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 5-coordinate geometry to five equivalent Cr(1) atoms. In the second As site, As(2) is bonded in a 6-coordinate geometry to three equivalent Cr(1) and three equivalent As(2) atoms. is represented by the CIF file [CIF]
data_CrAs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.200
_cell_length_b   4.704
_cell_length_c   6.643
_cell_angle_alpha   79.481
_cell_angle_beta   76.064
_cell_angle_gamma   70.115
_symmetry_Int_Tables_number   1
_cell_volume   90.690
_cell_formula_units_Z   2
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  Cr0  1  0.154  0.393  0.298  1.0
  Cr  Cr1  1  0.846  0.607  0.702  1.0
  As  As2  1  0.404  0.795  0.397  1.0
  As  As3  1  0.596  0.205  0.603  1.0
  As  As4  1  0.851  0.262  0.036  1.0
  As  As5  1  0.149  0.738  0.964  1.0
[/CIF]
.
The structure described by CrAs2 crystallizes in the monoclinic C2/m space group. Cr(1) is bonded in a 8-coordinate geometry to three equivalent As(2) and five equivalent As(1) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 5-coordinate geometry to five equivalent Cr(1) atoms. In the second As site, As(2) is bonded in a 6-coordinate geometry to three equivalent Cr(1) and three equivalent As(2) atoms. is represented by the CIF file [CIF]
data_CrAs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.200
_cell_length_b   4.704
_cell_length_c   6.643
_cell_angle_alpha   79.481
_cell_angle_beta   76.064
_cell_angle_gamma   70.115
_symmetry_Int_Tables_number   1
_cell_volume   90.690
_cell_formula_units_Z   2
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  Cr0  1  0.154  0.393  0.298  1.0
  Cr  Cr1  1  0.846  0.607  0.702  1.0
  As  As2  1  0.404  0.795  0.397  1.0
  As  As3  1  0.596  0.205  0.603  1.0
  As  As4  1  0.851  0.262  0.036  1.0
  As  As5  1  0.149  0.738  0.964  1.0
[/CIF]
.