The compound described by K2Zn5As4 is alpha Pu-derived structured and crystallizes in the orthorhombic Cmcm space group. K(1) is bonded in a 18-coordinate geometry to two equivalent K(1), two equivalent Zn(1), two equivalent Zn(3), four equivalent Zn(2), four equivalent As(1), and four equivalent As(2) atoms. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent K(1), two equivalent As(1), and two equivalent As(2) atoms to form distorted ZnK2As4 tetrahedra that share corners with two equivalent Zn(2)K4As4 tetrahedra, corners with four equivalent Zn(1)K2As4 tetrahedra,  an edgeedge with one Zn(1)K2As4 tetrahedra, edges with four equivalent Zn(2)K4As4 tetrahedra, and faces with two equivalent Zn(2)K4As4 tetrahedra. In the second Zn site, Zn(2) is bonded to four equivalent K(1), two equivalent As(1), and two equivalent As(2) atoms to form distorted ZnK4As4 tetrahedra that share corners with two equivalent Zn(1)K2As4 tetrahedra, corners with four equivalent Zn(2)K4As4 tetrahedra, edges with four equivalent Zn(1)K2As4 tetrahedra, edges with four equivalent Zn(2)K4As4 tetrahedra,  a faceface with one Zn(2)K4As4 tetrahedra, and faces with two equivalent Zn(1)K2As4 tetrahedra. In the third Zn site, Zn(3) is bonded in a 4-coordinate geometry to four equivalent K(1), two equivalent As(1), and two equivalent As(2) atoms. There are two inequivalent As sites. In the first As site, As(2) is bonded in a 7-coordinate geometry to four equivalent K(1), one Zn(3), two equivalent Zn(1), and two equivalent Zn(2) atoms. In the second As site, As(1) is bonded in a 5-coordinate geometry to four equivalent K(1), one Zn(3), two equivalent Zn(1), and two equivalent Zn(2) atoms. is represented by the CIF card [CIF]
data_K2Zn5As4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.874
_cell_length_b   6.874
_cell_length_c   11.773
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   117.106
_symmetry_Int_Tables_number   1
_cell_volume   495.202
_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  0.214  0.786  0.500  1.0
  K  K1  1  0.214  0.786  0.000  1.0
  K  K2  1  0.786  0.214  0.500  1.0
  K  K3  1  0.786  0.214  0.000  1.0
  Zn  Zn4  1  0.529  0.243  0.250  1.0
  Zn  Zn5  1  0.757  0.471  0.750  1.0
  Zn  Zn6  1  0.471  0.757  0.750  1.0
  Zn  Zn7  1  0.243  0.529  0.250  1.0
  Zn  Zn8  1  0.652  0.652  0.391  1.0
  Zn  Zn9  1  0.348  0.348  0.609  1.0
  Zn  Zn10  1  0.652  0.652  0.109  1.0
  Zn  Zn11  1  0.348  0.348  0.891  1.0
  Zn  Zn12  1  0.007  0.007  0.250  1.0
  Zn  Zn13  1  0.993  0.993  0.750  1.0
  As  As14  1  0.600  0.916  0.250  1.0
  As  As15  1  0.084  0.400  0.750  1.0
  As  As16  1  0.400  0.084  0.750  1.0
  As  As17  1  0.916  0.600  0.250  1.0
  As  As18  1  0.277  0.277  0.401  1.0
  As  As19  1  0.723  0.723  0.599  1.0
  As  As20  1  0.277  0.277  0.099  1.0
  As  As21  1  0.723  0.723  0.901  1.0
[/CIF]
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The compound described by K2Zn5As4 is alpha Pu-derived structured and crystallizes in the orthorhombic Cmcm space group. K(1) is bonded in a 18-coordinate geometry to two equivalent K(1), two equivalent Zn(1), two equivalent Zn(3), four equivalent Zn(2), four equivalent As(1), and four equivalent As(2) atoms. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent K(1), two equivalent As(1), and two equivalent As(2) atoms to form distorted ZnK2As4 tetrahedra that share corners with two equivalent Zn(2)K4As4 tetrahedra, corners with four equivalent Zn(1)K2As4 tetrahedra,  an edgeedge with one Zn(1)K2As4 tetrahedra, edges with four equivalent Zn(2)K4As4 tetrahedra, and faces with two equivalent Zn(2)K4As4 tetrahedra. In the second Zn site, Zn(2) is bonded to four equivalent K(1), two equivalent As(1), and two equivalent As(2) atoms to form distorted ZnK4As4 tetrahedra that share corners with two equivalent Zn(1)K2As4 tetrahedra, corners with four equivalent Zn(2)K4As4 tetrahedra, edges with four equivalent Zn(1)K2As4 tetrahedra, edges with four equivalent Zn(2)K4As4 tetrahedra,  a faceface with one Zn(2)K4As4 tetrahedra, and faces with two equivalent Zn(1)K2As4 tetrahedra. In the third Zn site, Zn(3) is bonded in a 4-coordinate geometry to four equivalent K(1), two equivalent As(1), and two equivalent As(2) atoms. There are two inequivalent As sites. In the first As site, As(2) is bonded in a 7-coordinate geometry to four equivalent K(1), one Zn(3), two equivalent Zn(1), and two equivalent Zn(2) atoms. In the second As site, As(1) is bonded in a 5-coordinate geometry to four equivalent K(1), one Zn(3), two equivalent Zn(1), and two equivalent Zn(2) atoms. is represented by the CIF card [CIF]
data_K2Zn5As4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.874
_cell_length_b   6.874
_cell_length_c   11.773
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   117.106
_symmetry_Int_Tables_number   1
_cell_volume   495.202
_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  0.214  0.786  0.500  1.0
  K  K1  1  0.214  0.786  0.000  1.0
  K  K2  1  0.786  0.214  0.500  1.0
  K  K3  1  0.786  0.214  0.000  1.0
  Zn  Zn4  1  0.529  0.243  0.250  1.0
  Zn  Zn5  1  0.757  0.471  0.750  1.0
  Zn  Zn6  1  0.471  0.757  0.750  1.0
  Zn  Zn7  1  0.243  0.529  0.250  1.0
  Zn  Zn8  1  0.652  0.652  0.391  1.0
  Zn  Zn9  1  0.348  0.348  0.609  1.0
  Zn  Zn10  1  0.652  0.652  0.109  1.0
  Zn  Zn11  1  0.348  0.348  0.891  1.0
  Zn  Zn12  1  0.007  0.007  0.250  1.0
  Zn  Zn13  1  0.993  0.993  0.750  1.0
  As  As14  1  0.600  0.916  0.250  1.0
  As  As15  1  0.084  0.400  0.750  1.0
  As  As16  1  0.400  0.084  0.750  1.0
  As  As17  1  0.916  0.600  0.250  1.0
  As  As18  1  0.277  0.277  0.401  1.0
  As  As19  1  0.723  0.723  0.599  1.0
  As  As20  1  0.277  0.277  0.099  1.0
  As  As21  1  0.723  0.723  0.901  1.0
[/CIF]
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