The crystal structure described by CuAsS crystallizes in the orthorhombic Pnma space group. Cu(1) is bonded to one As(1) and three equivalent S(1) atoms to form CuAsS3 tetrahedra that share  a cornercorner with one S(1)Cu3As tetrahedra and corners with six equivalent Cu(1)AsS3 tetrahedra. As(1) is bonded in a 4-coordinate geometry to one Cu(1), two equivalent As(1), and one S(1) atom. S(1) is bonded to three equivalent Cu(1) and one As(1) atom to form SCu3As tetrahedra that share  a cornercorner with one Cu(1)AsS3 tetrahedra and corners with six equivalent S(1)Cu3As tetrahedra. is represented by the CIF file [CIF]
data_CuAsS
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.782
_cell_length_b   5.394
_cell_length_c   11.328
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   231.049
_cell_formula_units_Z   4
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
  Cu  Cu0  1  0.250  0.436  0.326  1.0
  Cu  Cu1  1  0.750  0.936  0.174  1.0
  Cu  Cu2  1  0.750  0.564  0.674  1.0
  Cu  Cu3  1  0.250  0.064  0.826  1.0
  As  As4  1  0.750  0.651  0.014  1.0
  As  As5  1  0.250  0.151  0.486  1.0
  As  As6  1  0.750  0.849  0.514  1.0
  As  As7  1  0.250  0.349  0.986  1.0
  S  S8  1  0.750  0.826  0.832  1.0
  S  S9  1  0.750  0.674  0.332  1.0
  S  S10  1  0.250  0.174  0.168  1.0
  S  S11  1  0.250  0.326  0.668  1.0
[/CIF]
.
The crystal structure described by CuAsS crystallizes in the orthorhombic Pnma space group. Cu(1) is bonded to one As(1) and three equivalent S(1) atoms to form CuAsS3 tetrahedra that share  a cornercorner with one S(1)Cu3As tetrahedra and corners with six equivalent Cu(1)AsS3 tetrahedra. As(1) is bonded in a 4-coordinate geometry to one Cu(1), two equivalent As(1), and one S(1) atom. S(1) is bonded to three equivalent Cu(1) and one As(1) atom to form SCu3As tetrahedra that share  a cornercorner with one Cu(1)AsS3 tetrahedra and corners with six equivalent S(1)Cu3As tetrahedra. is represented by the CIF file [CIF]
data_CuAsS
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.782
_cell_length_b   5.394
_cell_length_c   11.328
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   231.049
_cell_formula_units_Z   4
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
  Cu  Cu0  1  0.250  0.436  0.326  1.0
  Cu  Cu1  1  0.750  0.936  0.174  1.0
  Cu  Cu2  1  0.750  0.564  0.674  1.0
  Cu  Cu3  1  0.250  0.064  0.826  1.0
  As  As4  1  0.750  0.651  0.014  1.0
  As  As5  1  0.250  0.151  0.486  1.0
  As  As6  1  0.750  0.849  0.514  1.0
  As  As7  1  0.250  0.349  0.986  1.0
  S  S8  1  0.750  0.826  0.832  1.0
  S  S9  1  0.750  0.674  0.332  1.0
  S  S10  1  0.250  0.174  0.168  1.0
  S  S11  1  0.250  0.326  0.668  1.0
[/CIF]
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