The structure described by BaCu2Zn2As3 crystallizes in the orthorhombic Cmcm space group. Ba(1) is bonded in a 19-coordinate geometry to six equivalent Cu(1), six equivalent Zn(1), three equivalent As(2), and four equivalent As(1) atoms. Cu(1) is bonded in a 4-coordinate geometry to three equivalent Ba(1), two equivalent As(1), and two equivalent As(2) atoms. Zn(1) is bonded in a 4-coordinate geometry to three equivalent Ba(1), one As(2), and three equivalent As(1) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 7-coordinate geometry to two equivalent Ba(1), two equivalent Cu(1), and three equivalent Zn(1) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to three equivalent Ba(1), four equivalent Cu(1), and two equivalent Zn(1) atoms. is represented by the CIF file [CIF]
data_BaZn2Cu2As3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.714
_cell_length_b   6.714
_cell_length_c   12.183
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   143.457
_symmetry_Int_Tables_number   1
_cell_volume   327.006
_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
  Ba  Ba0  1  0.184  0.816  0.250  1.0
  Ba  Ba1  1  0.816  0.184  0.750  1.0
  Zn  Zn2  1  0.833  0.167  0.058  1.0
  Zn  Zn3  1  0.167  0.833  0.942  1.0
  Zn  Zn4  1  0.167  0.833  0.558  1.0
  Zn  Zn5  1  0.833  0.167  0.442  1.0
  Cu  Cu6  1  0.458  0.542  0.144  1.0
  Cu  Cu7  1  0.542  0.458  0.856  1.0
  Cu  Cu8  1  0.542  0.458  0.644  1.0
  Cu  Cu9  1  0.458  0.542  0.356  1.0
  As  As10  1  0.625  0.375  0.046  1.0
  As  As11  1  0.375  0.625  0.954  1.0
  As  As12  1  0.375  0.625  0.546  1.0
  As  As13  1  0.625  0.375  0.454  1.0
  As  As14  1  0.911  0.089  0.250  1.0
  As  As15  1  0.089  0.911  0.750  1.0
[/CIF]
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The structure described by BaCu2Zn2As3 crystallizes in the orthorhombic Cmcm space group. Ba(1) is bonded in a 19-coordinate geometry to six equivalent Cu(1), six equivalent Zn(1), three equivalent As(2), and four equivalent As(1) atoms. Cu(1) is bonded in a 4-coordinate geometry to three equivalent Ba(1), two equivalent As(1), and two equivalent As(2) atoms. Zn(1) is bonded in a 4-coordinate geometry to three equivalent Ba(1), one As(2), and three equivalent As(1) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 7-coordinate geometry to two equivalent Ba(1), two equivalent Cu(1), and three equivalent Zn(1) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to three equivalent Ba(1), four equivalent Cu(1), and two equivalent Zn(1) atoms. is represented by the CIF file [CIF]
data_BaZn2Cu2As3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.714
_cell_length_b   6.714
_cell_length_c   12.183
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   143.457
_symmetry_Int_Tables_number   1
_cell_volume   327.006
_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
  Ba  Ba0  1  0.184  0.816  0.250  1.0
  Ba  Ba1  1  0.816  0.184  0.750  1.0
  Zn  Zn2  1  0.833  0.167  0.058  1.0
  Zn  Zn3  1  0.167  0.833  0.942  1.0
  Zn  Zn4  1  0.167  0.833  0.558  1.0
  Zn  Zn5  1  0.833  0.167  0.442  1.0
  Cu  Cu6  1  0.458  0.542  0.144  1.0
  Cu  Cu7  1  0.542  0.458  0.856  1.0
  Cu  Cu8  1  0.542  0.458  0.644  1.0
  Cu  Cu9  1  0.458  0.542  0.356  1.0
  As  As10  1  0.625  0.375  0.046  1.0
  As  As11  1  0.375  0.625  0.954  1.0
  As  As12  1  0.375  0.625  0.546  1.0
  As  As13  1  0.625  0.375  0.454  1.0
  As  As14  1  0.911  0.089  0.250  1.0
  As  As15  1  0.089  0.911  0.750  1.0
[/CIF]
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