data_Zn2As
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   15.02
_cell_length_b   15.02
_cell_length_c   15.02
_cell_angle_alpha   165.57
_cell_angle_beta   165.57
_cell_angle_gamma   20.46
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Zn2As
_chemical_formula_sum   'Zn8 As4'
_cell_volume   210.42
_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
  Zn  Zn4  1  0.0  0.89  0.03  1.0
  Zn  Zn5  1  0.0  0.89  0.76  1.0
  Zn  Zn6  1  0.0  0.0  0.2  1.0
  Zn  Zn7  1  0.0  0.0  0.37  1.0
  Zn  Zn8  1  0.89  0.0  0.03  1.0
  Zn  Zn9  1  0.89  0.0  0.75  1.0
  Zn  Zn10  1  0.0  0.0  0.42  1.0
  Zn  Zn11  1  0.0  0.0  0.14  1.0
  As  As0  1  0.0  0.89  0.34  1.0
  As  As1  1  0.0  0.89  0.44  1.0
  As  As2  1  0.0  0.0  0.52  1.0
  As  As3  1  0.0  0.0  0.05  1.0

data_Zn2As
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.77
_cell_length_b   3.77
_cell_length_c   15.02
_cell_angle_alpha   97.21
_cell_angle_beta   97.21
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Zn2As
_chemical_formula_sum   'Zn8 As4'
_cell_volume   210.42
_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
  Zn  Zn0  1  0.03  0.15  0.15  1.0
  Zn  Zn1  1  0.14  0.03  0.14  1.0
  Zn  Zn2  1  0.14  0.14  0.14  1.0
  Zn  Zn3  1  0.2  0.2  0.2  1.0
  Zn  Zn4  1  0.37  0.37  0.37  1.0
  Zn  Zn5  1  0.42  0.42  0.42  1.0
  Zn  Zn6  1  0.75  0.87  0.87  1.0
  Zn  Zn7  1  0.87  0.76  0.87  1.0
  As  As8  1  0.05  0.05  0.05  1.0
  As  As9  1  0.46  0.34  0.46  1.0
  As  As10  1  0.52  0.52  0.52  1.0
  As  As11  1  0.55  0.44  0.55  1.0

Zn Zn Zn Zn Zn Zn Zn Zn As As As As
Zn Zn Zn Zn Zn Zn Zn Zn As As As As 0 7 o + o 0 2 o + o 0 11 o + o 1 5 - + o 2 4 - o o 2 7 o o o 3 6 o o o 4 7 + o o 4 11 + o o 6 8 o - o 7 11 o o o 9 10 o + o 
Zn6AsZn2As3 is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Zn2As3 cluster and one Zn6As cluster. In the Zn2As3 cluster, there are two inequivalent Zn sites. In the first Zn site, Zn(4) is bonded in a distorted single-bond geometry to one Zn(7) atom. The Zn(4)-Zn(7) bond length is 0.86 Å. In the second Zn site, Zn(7) is bonded in a single-bond geometry to one Zn(4) and one As(1) atom. The Zn(7)-As(1) bond length is 0.64 Å. There are three inequivalent As sites. In the first As site, As(1) is bonded in a single-bond geometry to one Zn(7) and one As(3) atom. The As(1)-As(3) bond length is 1.07 Å. In the second As site, As(2) is bonded in a single-bond geometry to one As(3) atom. The As(2)-As(3) bond length is 0.60 Å. In the third As site, As(3) is bonded in a distorted water-like geometry to one As(1) and one As(2) atom. In the Zn6As cluster, there are six inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a single-bond geometry to one Zn(8) and one As(4) atom. The Zn(1)-Zn(8) bond length is 0.44 Å. The Zn(1)-As(4) bond length is 1.40 Å. In the second Zn site, Zn(2) is bonded in an L-shaped geometry to one Zn(6) and one As(4) atom. The Zn(2)-Zn(6) bond length is 0.61 Å. The Zn(2)-As(4) bond length is 2.72 Å. In the third Zn site, Zn(3) is bonded in a distorted single-bond geometry to one Zn(8) atom. The Zn(3)-Zn(8) bond length is 0.86 Å. In the fourth Zn site, Zn(5) is bonded in a single-bond geometry to one Zn(8) and one As(4) atom. The Zn(5)-Zn(8) bond length is 0.43 Å. The Zn(5)-As(4) bond length is 1.48 Å. In the fifth Zn site, Zn(6) is bonded in a distorted single-bond geometry to one Zn(2) and one As(4) atom. The Zn(6)-As(4) bond length is 2.81 Å. In the sixth Zn site, Zn(8) is bonded in an L-shaped geometry to one Zn(1), one Zn(3), one Zn(5), and one As(4) atom. The Zn(8)-As(4) bond length is 1.46 Å. As(4) is bonded in a 5-coordinate geometry to one Zn(1), one Zn(2), one Zn(5), one Zn(6), and one Zn(8) atom.