The structure described by KNa4SnSb3 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 5-coordinate geometry to two equivalent Sn(1), one Sb(1), two equivalent Sb(2), and two equivalent Sb(3) atoms. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one Sn(1), one Sb(1), one Sb(3), and two equivalent Sb(2) atoms. In the second Na site, Na(2) is bonded to one Sn(1), one Sb(1), one Sb(2), and two equivalent Sb(3) atoms to form distorted NaSnSb4 tetrahedra that share corners with two equivalent Na(2)SnSb4 tetrahedra, corners with three equivalent Na(3)Sb4 tetrahedra, and  an edgeedge with one Na(3)Sb4 tetrahedra. In the third Na site, Na(3) is bonded to one Sb(1), one Sb(3), and two equivalent Sb(2) atoms to form distorted NaSb4 tetrahedra that share corners with three equivalent Na(2)SnSb4 tetrahedra,  an edgeedge with one Na(3)Sb4 tetrahedra, and  an edgeedge with one Na(2)SnSb4 tetrahedra. In the fourth Na site, Na(4) is bonded in a 3-coordinate geometry to one Sb(1), one Sb(2), and two equivalent Sb(3) atoms. Sn(1) is bonded in a 8-coordinate geometry to two equivalent K(1), one Na(1), one Na(2), one Sb(2), one Sb(3), and two equivalent Sb(1) atoms. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 7-coordinate geometry to one K(1), one Na(1), one Na(2), one Na(3), one Na(4), and two equivalent Sn(1) atoms. In the second Sb site, Sb(2) is bonded in a 9-coordinate geometry to two equivalent K(1), one Na(2), one Na(4), two equivalent Na(1), two equivalent Na(3), and one Sn(1) atom. In the third Sb site, Sb(3) is bonded in a 9-coordinate geometry to two equivalent K(1), one Na(1), one Na(3), two equivalent Na(2), two equivalent Na(4), and one Sn(1) atom. is represented by the CIF card [CIF]
data_KNa4SnSb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.392
_cell_length_b   9.262
_cell_length_c   17.431
_cell_angle_alpha   58.384
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1153.746
_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
  K  K0  1  0.025  0.912  0.913  1.0
  K  K1  1  0.975  0.088  0.087  1.0
  K  K2  1  0.525  0.088  0.587  1.0
  K  K3  1  0.475  0.912  0.413  1.0
  Na  Na4  1  0.997  0.572  0.259  1.0
  Na  Na5  1  0.497  0.428  0.241  1.0
  Na  Na6  1  0.503  0.572  0.759  1.0
  Na  Na7  1  0.003  0.428  0.741  1.0
  Na  Na8  1  0.126  0.172  0.259  1.0
  Na  Na9  1  0.626  0.828  0.241  1.0
  Na  Na10  1  0.874  0.828  0.741  1.0
  Na  Na11  1  0.374  0.172  0.759  1.0
  Na  Na12  1  0.161  0.838  0.583  1.0
  Na  Na13  1  0.948  0.774  0.405  1.0
  Na  Na14  1  0.839  0.162  0.417  1.0
  Na  Na15  1  0.339  0.838  0.083  1.0
  Na  Na16  1  0.552  0.774  0.905  1.0
  Na  Na17  1  0.052  0.226  0.595  1.0
  Na  Na18  1  0.448  0.226  0.095  1.0
  Na  Na19  1  0.661  0.162  0.917  1.0
  Sn  Sn20  1  0.848  0.479  0.090  1.0
  Sn  Sn21  1  0.652  0.479  0.590  1.0
  Sn  Sn22  1  0.152  0.521  0.910  1.0
  Sn  Sn23  1  0.348  0.521  0.410  1.0
  Sb  Sb24  1  0.200  0.515  0.078  1.0
  Sb  Sb25  1  0.789  0.767  0.585  1.0
  Sb  Sb26  1  0.240  0.836  0.261  1.0
  Sb  Sb27  1  0.211  0.233  0.415  1.0
  Sb  Sb28  1  0.289  0.233  0.915  1.0
  Sb  Sb29  1  0.700  0.485  0.422  1.0
  Sb  Sb30  1  0.800  0.485  0.922  1.0
  Sb  Sb31  1  0.300  0.515  0.578  1.0
  Sb  Sb32  1  0.740  0.164  0.239  1.0
  Sb  Sb33  1  0.760  0.164  0.739  1.0
  Sb  Sb34  1  0.260  0.836  0.761  1.0
  Sb  Sb35  1  0.711  0.767  0.085  1.0
[/CIF]
.
The structure described by KNa4SnSb3 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 5-coordinate geometry to two equivalent Sn(1), one Sb(1), two equivalent Sb(2), and two equivalent Sb(3) atoms. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one Sn(1), one Sb(1), one Sb(3), and two equivalent Sb(2) atoms. In the second Na site, Na(2) is bonded to one Sn(1), one Sb(1), one Sb(2), and two equivalent Sb(3) atoms to form distorted NaSnSb4 tetrahedra that share corners with two equivalent Na(2)SnSb4 tetrahedra, corners with three equivalent Na(3)Sb4 tetrahedra, and  an edgeedge with one Na(3)Sb4 tetrahedra. In the third Na site, Na(3) is bonded to one Sb(1), one Sb(3), and two equivalent Sb(2) atoms to form distorted NaSb4 tetrahedra that share corners with three equivalent Na(2)SnSb4 tetrahedra,  an edgeedge with one Na(3)Sb4 tetrahedra, and  an edgeedge with one Na(2)SnSb4 tetrahedra. In the fourth Na site, Na(4) is bonded in a 3-coordinate geometry to one Sb(1), one Sb(2), and two equivalent Sb(3) atoms. Sn(1) is bonded in a 8-coordinate geometry to two equivalent K(1), one Na(1), one Na(2), one Sb(2), one Sb(3), and two equivalent Sb(1) atoms. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 7-coordinate geometry to one K(1), one Na(1), one Na(2), one Na(3), one Na(4), and two equivalent Sn(1) atoms. In the second Sb site, Sb(2) is bonded in a 9-coordinate geometry to two equivalent K(1), one Na(2), one Na(4), two equivalent Na(1), two equivalent Na(3), and one Sn(1) atom. In the third Sb site, Sb(3) is bonded in a 9-coordinate geometry to two equivalent K(1), one Na(1), one Na(3), two equivalent Na(2), two equivalent Na(4), and one Sn(1) atom. is represented by the CIF card [CIF]
data_KNa4SnSb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.392
_cell_length_b   9.262
_cell_length_c   17.431
_cell_angle_alpha   58.384
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1153.746
_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
  K  K0  1  0.025  0.912  0.913  1.0
  K  K1  1  0.975  0.088  0.087  1.0
  K  K2  1  0.525  0.088  0.587  1.0
  K  K3  1  0.475  0.912  0.413  1.0
  Na  Na4  1  0.997  0.572  0.259  1.0
  Na  Na5  1  0.497  0.428  0.241  1.0
  Na  Na6  1  0.503  0.572  0.759  1.0
  Na  Na7  1  0.003  0.428  0.741  1.0
  Na  Na8  1  0.126  0.172  0.259  1.0
  Na  Na9  1  0.626  0.828  0.241  1.0
  Na  Na10  1  0.874  0.828  0.741  1.0
  Na  Na11  1  0.374  0.172  0.759  1.0
  Na  Na12  1  0.161  0.838  0.583  1.0
  Na  Na13  1  0.948  0.774  0.405  1.0
  Na  Na14  1  0.839  0.162  0.417  1.0
  Na  Na15  1  0.339  0.838  0.083  1.0
  Na  Na16  1  0.552  0.774  0.905  1.0
  Na  Na17  1  0.052  0.226  0.595  1.0
  Na  Na18  1  0.448  0.226  0.095  1.0
  Na  Na19  1  0.661  0.162  0.917  1.0
  Sn  Sn20  1  0.848  0.479  0.090  1.0
  Sn  Sn21  1  0.652  0.479  0.590  1.0
  Sn  Sn22  1  0.152  0.521  0.910  1.0
  Sn  Sn23  1  0.348  0.521  0.410  1.0
  Sb  Sb24  1  0.200  0.515  0.078  1.0
  Sb  Sb25  1  0.789  0.767  0.585  1.0
  Sb  Sb26  1  0.240  0.836  0.261  1.0
  Sb  Sb27  1  0.211  0.233  0.415  1.0
  Sb  Sb28  1  0.289  0.233  0.915  1.0
  Sb  Sb29  1  0.700  0.485  0.422  1.0
  Sb  Sb30  1  0.800  0.485  0.922  1.0
  Sb  Sb31  1  0.300  0.515  0.578  1.0
  Sb  Sb32  1  0.740  0.164  0.239  1.0
  Sb  Sb33  1  0.760  0.164  0.739  1.0
  Sb  Sb34  1  0.260  0.836  0.761  1.0
  Sb  Sb35  1  0.711  0.767  0.085  1.0
[/CIF]
.