The material structure described by K3Zn4As3O17 crystallizes in the orthorhombic Iba2 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(3), one O(4), one O(6), one O(7), two equivalent O(8), and two equivalent O(9) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(5), and two equivalent O(9) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form ZnO4 tetrahedra that share  a cornercorner with one Zn(1)O4 tetrahedra,  a cornercorner with one As(1)O4 tetrahedra, corners with two equivalent Zn(2)O4 tetrahedra, and corners with two equivalent As(2)O4 tetrahedra. In the second Zn site, Zn(2) is bonded to one O(1), one O(5), one O(6), and one O(7) atom to form ZnO4 tetrahedra that share  a cornercorner with one Zn(2)O4 tetrahedra,  a cornercorner with one As(1)O4 tetrahedra, corners with two equivalent Zn(1)O4 tetrahedra, and corners with two equivalent As(2)O4 tetrahedra. There are two inequivalent As sites. In the first As site, As(1) is bonded to two equivalent O(3) and two equivalent O(6) atoms to form AsO4 tetrahedra that share corners with two equivalent Zn(1)O4 tetrahedra and corners with two equivalent Zn(2)O4 tetrahedra. In the second As site, As(2) is bonded to one O(2), one O(4), one O(5), and one O(7) atom to form AsO4 tetrahedra that share corners with two equivalent Zn(1)O4 tetrahedra and corners with two equivalent Zn(2)O4 tetrahedra. There are nine inequivalent O sites. In the first O site, O(8) is bonded in a distorted bent 120 degrees geometry to two equivalent K(1) atoms. In the second O site, O(9) is bonded in a distorted trigonal planar geometry to one K(2) and two equivalent K(1) atoms. In the third O site, O(1) is bonded in a tetrahedral geometry to two equivalent Zn(1) and two equivalent Zn(2) atoms. In the fourth O site, O(2) is bonded in a trigonal planar geometry to one K(2), one Zn(1), and one As(2) atom. In the fifth O site, O(3) is bonded in a trigonal planar geometry to one K(1), one Zn(1), and one As(1) atom. In the sixth O site, O(4) is bonded in a trigonal planar geometry to one K(1), one Zn(1), and one As(2) atom. In the seventh O site, O(5) is bonded in a trigonal planar geometry to one K(2), one Zn(2), and one As(2) atom. In the eighth O site, O(6) is bonded in a trigonal planar geometry to one K(1), one Zn(2), and one As(1) atom. In the ninth O site, O(7) is bonded in a trigonal planar geometry to one K(1), one Zn(2), and one As(2) atom. is represented by the CIF card [CIF]
data_K3Zn4As3O17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.104
_cell_length_b   11.104
_cell_length_c   11.104
_cell_angle_alpha   120.675
_cell_angle_beta   120.307
_cell_angle_gamma   89.152
_symmetry_Int_Tables_number   1
_cell_volume   960.764
_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
  K  K0  1  0.980  0.029  0.505  1.0
  K  K1  1  0.525  0.025  0.500  1.0
  K  K2  1  0.524  0.475  0.495  1.0
  K  K3  1  0.480  0.975  0.951  1.0
  K  K4  1  0.025  0.525  0.500  1.0
  K  K5  1  0.024  0.529  0.049  1.0
  Zn  Zn6  1  0.573  0.719  0.145  1.0
  Zn  Zn7  1  0.574  0.428  0.855  1.0
  Zn  Zn8  1  0.280  0.428  0.854  1.0
  Zn  Zn9  1  0.574  0.426  0.146  1.0
  Zn  Zn10  1  0.780  0.926  0.852  1.0
  Zn  Zn11  1  0.073  0.928  0.854  1.0
  Zn  Zn12  1  0.074  0.219  0.146  1.0
  Zn  Zn13  1  0.074  0.928  0.148  1.0
  As  As14  1  0.750  0.750  0.000  1.0
  As  As15  1  0.751  0.751  0.500  1.0
  As  As16  1  0.251  0.751  1.000  1.0
  As  As17  1  0.252  0.251  0.500  1.0
  As  As18  1  0.752  0.251  0.000  1.0
  As  As19  1  0.250  0.250  0.000  1.0
  O  O20  1  0.500  0.500  0.000  1.0
  O  O21  1  1.000  1.000  0.000  1.0
  O  O22  1  0.422  0.796  0.175  1.0
  O  O23  1  0.626  0.803  0.051  1.0
  O  O24  1  0.754  0.801  0.376  1.0
  O  O25  1  0.622  0.247  0.825  1.0
  O  O26  1  0.752  0.575  0.949  1.0
  O  O27  1  0.424  0.377  0.624  1.0
  O  O28  1  0.202  0.578  0.820  1.0
  O  O29  1  0.199  0.376  0.952  1.0
  O  O30  1  0.206  0.247  0.625  1.0
  O  O31  1  0.758  0.382  0.180  1.0
  O  O32  1  0.424  0.247  0.048  1.0
  O  O33  1  0.622  0.580  0.375  1.0
  O  O34  1  0.706  0.080  0.959  1.0
  O  O35  1  0.702  0.882  0.624  1.0
  O  O36  1  0.699  0.747  0.823  1.0
  O  O37  1  0.254  0.877  0.953  1.0
  O  O38  1  0.922  0.747  0.626  1.0
  O  O39  1  0.126  0.075  0.824  1.0
  O  O40  1  0.924  0.301  0.047  1.0
  O  O41  1  0.122  0.296  0.374  1.0
  O  O42  1  0.252  0.303  0.176  1.0
  O  O43  1  0.122  0.747  0.041  1.0
  O  O44  1  0.258  0.078  0.376  1.0
  O  O45  1  0.924  0.876  0.177  1.0
  O  O46  1  0.311  0.000  0.641  1.0
  O  O47  1  0.360  0.671  0.359  1.0
  O  O48  1  0.001  0.687  0.342  1.0
  O  O49  1  0.345  0.659  0.658  1.0
  O  O50  1  0.501  0.159  0.314  1.0
  O  O51  1  0.811  0.171  0.311  1.0
  O  O52  1  0.860  0.500  0.689  1.0
  O  O53  1  0.845  0.187  0.686  1.0
[/CIF]
.
The material structure described by K3Zn4As3O17 crystallizes in the orthorhombic Iba2 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(3), one O(4), one O(6), one O(7), two equivalent O(8), and two equivalent O(9) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(5), and two equivalent O(9) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form ZnO4 tetrahedra that share  a cornercorner with one Zn(1)O4 tetrahedra,  a cornercorner with one As(1)O4 tetrahedra, corners with two equivalent Zn(2)O4 tetrahedra, and corners with two equivalent As(2)O4 tetrahedra. In the second Zn site, Zn(2) is bonded to one O(1), one O(5), one O(6), and one O(7) atom to form ZnO4 tetrahedra that share  a cornercorner with one Zn(2)O4 tetrahedra,  a cornercorner with one As(1)O4 tetrahedra, corners with two equivalent Zn(1)O4 tetrahedra, and corners with two equivalent As(2)O4 tetrahedra. There are two inequivalent As sites. In the first As site, As(1) is bonded to two equivalent O(3) and two equivalent O(6) atoms to form AsO4 tetrahedra that share corners with two equivalent Zn(1)O4 tetrahedra and corners with two equivalent Zn(2)O4 tetrahedra. In the second As site, As(2) is bonded to one O(2), one O(4), one O(5), and one O(7) atom to form AsO4 tetrahedra that share corners with two equivalent Zn(1)O4 tetrahedra and corners with two equivalent Zn(2)O4 tetrahedra. There are nine inequivalent O sites. In the first O site, O(8) is bonded in a distorted bent 120 degrees geometry to two equivalent K(1) atoms. In the second O site, O(9) is bonded in a distorted trigonal planar geometry to one K(2) and two equivalent K(1) atoms. In the third O site, O(1) is bonded in a tetrahedral geometry to two equivalent Zn(1) and two equivalent Zn(2) atoms. In the fourth O site, O(2) is bonded in a trigonal planar geometry to one K(2), one Zn(1), and one As(2) atom. In the fifth O site, O(3) is bonded in a trigonal planar geometry to one K(1), one Zn(1), and one As(1) atom. In the sixth O site, O(4) is bonded in a trigonal planar geometry to one K(1), one Zn(1), and one As(2) atom. In the seventh O site, O(5) is bonded in a trigonal planar geometry to one K(2), one Zn(2), and one As(2) atom. In the eighth O site, O(6) is bonded in a trigonal planar geometry to one K(1), one Zn(2), and one As(1) atom. In the ninth O site, O(7) is bonded in a trigonal planar geometry to one K(1), one Zn(2), and one As(2) atom. is represented by the CIF card [CIF]
data_K3Zn4As3O17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.104
_cell_length_b   11.104
_cell_length_c   11.104
_cell_angle_alpha   120.675
_cell_angle_beta   120.307
_cell_angle_gamma   89.152
_symmetry_Int_Tables_number   1
_cell_volume   960.764
_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
  K  K0  1  0.980  0.029  0.505  1.0
  K  K1  1  0.525  0.025  0.500  1.0
  K  K2  1  0.524  0.475  0.495  1.0
  K  K3  1  0.480  0.975  0.951  1.0
  K  K4  1  0.025  0.525  0.500  1.0
  K  K5  1  0.024  0.529  0.049  1.0
  Zn  Zn6  1  0.573  0.719  0.145  1.0
  Zn  Zn7  1  0.574  0.428  0.855  1.0
  Zn  Zn8  1  0.280  0.428  0.854  1.0
  Zn  Zn9  1  0.574  0.426  0.146  1.0
  Zn  Zn10  1  0.780  0.926  0.852  1.0
  Zn  Zn11  1  0.073  0.928  0.854  1.0
  Zn  Zn12  1  0.074  0.219  0.146  1.0
  Zn  Zn13  1  0.074  0.928  0.148  1.0
  As  As14  1  0.750  0.750  0.000  1.0
  As  As15  1  0.751  0.751  0.500  1.0
  As  As16  1  0.251  0.751  1.000  1.0
  As  As17  1  0.252  0.251  0.500  1.0
  As  As18  1  0.752  0.251  0.000  1.0
  As  As19  1  0.250  0.250  0.000  1.0
  O  O20  1  0.500  0.500  0.000  1.0
  O  O21  1  1.000  1.000  0.000  1.0
  O  O22  1  0.422  0.796  0.175  1.0
  O  O23  1  0.626  0.803  0.051  1.0
  O  O24  1  0.754  0.801  0.376  1.0
  O  O25  1  0.622  0.247  0.825  1.0
  O  O26  1  0.752  0.575  0.949  1.0
  O  O27  1  0.424  0.377  0.624  1.0
  O  O28  1  0.202  0.578  0.820  1.0
  O  O29  1  0.199  0.376  0.952  1.0
  O  O30  1  0.206  0.247  0.625  1.0
  O  O31  1  0.758  0.382  0.180  1.0
  O  O32  1  0.424  0.247  0.048  1.0
  O  O33  1  0.622  0.580  0.375  1.0
  O  O34  1  0.706  0.080  0.959  1.0
  O  O35  1  0.702  0.882  0.624  1.0
  O  O36  1  0.699  0.747  0.823  1.0
  O  O37  1  0.254  0.877  0.953  1.0
  O  O38  1  0.922  0.747  0.626  1.0
  O  O39  1  0.126  0.075  0.824  1.0
  O  O40  1  0.924  0.301  0.047  1.0
  O  O41  1  0.122  0.296  0.374  1.0
  O  O42  1  0.252  0.303  0.176  1.0
  O  O43  1  0.122  0.747  0.041  1.0
  O  O44  1  0.258  0.078  0.376  1.0
  O  O45  1  0.924  0.876  0.177  1.0
  O  O46  1  0.311  0.000  0.641  1.0
  O  O47  1  0.360  0.671  0.359  1.0
  O  O48  1  0.001  0.687  0.342  1.0
  O  O49  1  0.345  0.659  0.658  1.0
  O  O50  1  0.501  0.159  0.314  1.0
  O  O51  1  0.811  0.171  0.311  1.0
  O  O52  1  0.860  0.500  0.689  1.0
  O  O53  1  0.845  0.187  0.686  1.0
[/CIF]
.