The structure described by Cu5As2 crystallizes in the triclinic P-1 space group. There are five inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 10-coordinate geometry to two equivalent Cu(3), two equivalent Cu(4), two equivalent Cu(5), two equivalent As(1), and two equivalent As(2) atoms. In the second Cu site, Cu(2) is bonded in a 10-coordinate geometry to two equivalent Cu(3), two equivalent Cu(4), two equivalent Cu(5), two equivalent As(1), and two equivalent As(2) atoms. In the third Cu site, Cu(3) is bonded in a 4-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), two equivalent As(1), and two equivalent As(2) atoms. In the fourth Cu site, Cu(4) is bonded in a 4-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), two equivalent As(1), and two equivalent As(2) atoms. In the fifth Cu site, Cu(5) is bonded in a 4-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), two equivalent As(1), and two equivalent As(2) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 10-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), two equivalent Cu(3), two equivalent Cu(4), and two equivalent Cu(5) atoms. In the second As site, As(2) is bonded in a 10-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), two equivalent Cu(3), two equivalent Cu(4), and two equivalent Cu(5) atoms. is represented by the CIF file [CIF]
data_Cu5As2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.528
_cell_length_b   5.939
_cell_length_c   7.009
_cell_angle_alpha   115.112
_cell_angle_beta   113.111
_cell_angle_gamma   89.985
_symmetry_Int_Tables_number   1
_cell_volume   187.783
_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
  Cu  Cu0  1  0.395  0.701  0.789  1.0
  Cu  Cu1  1  0.605  0.299  0.211  1.0
  Cu  Cu2  1  0.105  0.912  0.209  1.0
  Cu  Cu3  1  0.895  0.088  0.791  1.0
  Cu  Cu4  1  0.520  0.270  0.539  1.0
  Cu  Cu5  1  0.980  0.731  0.461  1.0
  Cu  Cu6  1  0.480  0.730  0.461  1.0
  Cu  Cu7  1  0.020  0.269  0.539  1.0
  Cu  Cu8  1  0.250  0.500  0.000  1.0
  Cu  Cu9  1  0.750  0.500  1.000  1.0
  As  As10  1  0.116  0.340  0.234  1.0
  As  As11  1  0.884  0.660  0.766  1.0
  As  As12  1  0.383  0.106  0.767  1.0
  As  As13  1  0.617  0.894  0.233  1.0
[/CIF]
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The structure described by Cu5As2 crystallizes in the triclinic P-1 space group. There are five inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 10-coordinate geometry to two equivalent Cu(3), two equivalent Cu(4), two equivalent Cu(5), two equivalent As(1), and two equivalent As(2) atoms. In the second Cu site, Cu(2) is bonded in a 10-coordinate geometry to two equivalent Cu(3), two equivalent Cu(4), two equivalent Cu(5), two equivalent As(1), and two equivalent As(2) atoms. In the third Cu site, Cu(3) is bonded in a 4-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), two equivalent As(1), and two equivalent As(2) atoms. In the fourth Cu site, Cu(4) is bonded in a 4-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), two equivalent As(1), and two equivalent As(2) atoms. In the fifth Cu site, Cu(5) is bonded in a 4-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), two equivalent As(1), and two equivalent As(2) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 10-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), two equivalent Cu(3), two equivalent Cu(4), and two equivalent Cu(5) atoms. In the second As site, As(2) is bonded in a 10-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), two equivalent Cu(3), two equivalent Cu(4), and two equivalent Cu(5) atoms. is represented by the CIF file [CIF]
data_Cu5As2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.528
_cell_length_b   5.939
_cell_length_c   7.009
_cell_angle_alpha   115.112
_cell_angle_beta   113.111
_cell_angle_gamma   89.985
_symmetry_Int_Tables_number   1
_cell_volume   187.783
_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
  Cu  Cu0  1  0.395  0.701  0.789  1.0
  Cu  Cu1  1  0.605  0.299  0.211  1.0
  Cu  Cu2  1  0.105  0.912  0.209  1.0
  Cu  Cu3  1  0.895  0.088  0.791  1.0
  Cu  Cu4  1  0.520  0.270  0.539  1.0
  Cu  Cu5  1  0.980  0.731  0.461  1.0
  Cu  Cu6  1  0.480  0.730  0.461  1.0
  Cu  Cu7  1  0.020  0.269  0.539  1.0
  Cu  Cu8  1  0.250  0.500  0.000  1.0
  Cu  Cu9  1  0.750  0.500  1.000  1.0
  As  As10  1  0.116  0.340  0.234  1.0
  As  As11  1  0.884  0.660  0.766  1.0
  As  As12  1  0.383  0.106  0.767  1.0
  As  As13  1  0.617  0.894  0.233  1.0
[/CIF]
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