The structure described by K7Na17(ZnSn2)4 crystallizes in the triclinic P1 space group. There are seven inequivalent K sites. In the first K site, K(1) is bonded in a 2-coordinate geometry to one Na(17), one Zn(2), one Sn(3), one Sn(5), and one Sn(7) atom. In the second K site, K(2) is bonded in a 2-coordinate geometry to one Na(17), one Zn(1), one Sn(4), one Sn(6), and one Sn(8) atom. In the third K site, K(3) is bonded in a 2-coordinate geometry to one Zn(4), one Sn(1), one Sn(5), one Sn(7), and one Sn(8) atom. In the fourth K site, K(4) is bonded in a 2-coordinate geometry to one Zn(3), one Sn(2), one Sn(7), and one Sn(8) atom. In the fifth K site, K(5) is bonded in a 4-coordinate geometry to one Sn(2), one Sn(3), one Sn(5), and one Sn(6) atom. In the sixth K site, K(6) is bonded in a 4-coordinate geometry to one Sn(2), one Sn(3), one Sn(7), and one Sn(8) atom. In the seventh K site, K(7) is bonded in a 4-coordinate geometry to one Sn(1), one Sn(4), one Sn(7), and one Sn(8) atom. There are seventeen inequivalent Na sites. In the first Na site, Na(1) is bonded in a 3-coordinate geometry to one Zn(2), one Sn(1), and one Sn(4) atom. In the second Na site, Na(2) is bonded in a 3-coordinate geometry to one Zn(1), one Sn(2), and one Sn(3) atom. In the third Na site, Na(3) is bonded in a 3-coordinate geometry to one Zn(4), one Sn(2), one Sn(3), and one Sn(8) atom. In the fourth Na site, Na(4) is bonded in a 3-coordinate geometry to one Na(17), one Zn(3), one Sn(1), one Sn(4), and one Sn(7) atom. In the fifth Na site, Na(5) is bonded in a 4-coordinate geometry to one Zn(3), one Sn(3), one Sn(5), and one Sn(8) atom. In the sixth Na site, Na(6) is bonded in a 4-coordinate geometry to one Na(17), one Zn(4), one Sn(4), one Sn(6), and one Sn(7) atom. In the seventh Na site, Na(7) is bonded in a 4-coordinate geometry to one Na(17), one Zn(1), one Sn(1), one Sn(6), and one Sn(7) atom. In the eighth Na site, Na(8) is bonded in a 4-coordinate geometry to one Na(17), one Zn(2), one Sn(2), one Sn(5), and one Sn(8) atom. In the ninth Na site, Na(9) is bonded in a 4-coordinate geometry to one Na(17), one Zn(4), one Sn(3), one Sn(5), and one Sn(8) atom. In the tenth Na site, Na(10) is bonded in a 4-coordinate geometry to one Zn(3), one Sn(4), one Sn(6), and one Sn(7) atom. In the eleventh Na site, Na(11) is bonded in a 4-coordinate geometry to one Zn(2), one Sn(1), one Sn(6), and one Sn(7) atom. In the twelfth Na site, Na(12) is bonded in a 4-coordinate geometry to one Zn(1), one Sn(2), one Sn(5), and one Sn(8) atom. In the thirteenth Na site, Na(13) is bonded in a 3-coordinate geometry to one Na(17), one Sn(1), one Sn(2), and one Sn(5) atom. In the fourteenth Na site, Na(14) is bonded in a 3-coordinate geometry to one Sn(1), one Sn(2), and one Sn(6) atom. In the fifteenth Na site, Na(15) is bonded in a 3-coordinate geometry to one Sn(3), one Sn(4), and one Sn(7) atom. In the sixteenth Na site, Na(16) is bonded in a 3-coordinate geometry to one Sn(3), one Sn(4), and one Sn(8) atom. In the seventeenth Na site, Na(17) is bonded in a 12-coordinate geometry to one K(1), one K(2), one Na(13), one Na(4), one Na(6), one Na(7), one Na(8), one Na(9), one Sn(1), one Sn(4), one Sn(5), and one Sn(6) atom. There are four inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 6-coordinate geometry to one K(2), one Na(12), one Na(2), one Na(7), one Sn(1), and one Sn(5) atom. In the second Zn site, Zn(2) is bonded in a 6-coordinate geometry to one K(1), one Na(1), one Na(11), one Na(8), one Sn(2), and one Sn(6) atom. In the third Zn site, Zn(3) is bonded in a 6-coordinate geometry to one K(4), one Na(10), one Na(4), one Na(5), one Sn(3), and one Sn(7) atom. In the fourth Zn site, Zn(4) is bonded in a 6-coordinate geometry to one K(3), one Na(3), one Na(6), one Na(9), one Sn(4), and one Sn(8) atom. There are eight inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 10-coordinate geometry to one K(3), one K(7), one Na(1), one Na(11), one Na(13), one Na(14), one Na(17), one Na(4), one Na(7), and one Zn(1) atom. In the second Sn site, Sn(2) is bonded in a 10-coordinate geometry to one K(4), one K(5), one K(6), one Na(12), one Na(13), one Na(14), one Na(2), one Na(3), one Na(8), and one Zn(2) atom. In the third Sn site, Sn(3) is bonded in a 10-coordinate geometry to one K(1), one K(5), one K(6), one Na(15), one Na(16), one Na(2), one Na(3), one Na(5), one Na(9), and one Zn(3) atom. In the fourth Sn site, Sn(4) is bonded in a 10-coordinate geometry to one K(2), one K(7), one Na(1), one Na(10), one Na(15), one Na(16), one Na(17), one Na(4), one Na(6), and one Zn(4) atom. In the fifth Sn site, Sn(5) is bonded in a 10-coordinate geometry to one K(1), one K(3), one K(5), one Na(12), one Na(13), one Na(17), one Na(5), one Na(8), one Na(9), and one Zn(1) atom. In the sixth Sn site, Sn(6) is bonded in a 8-coordinate geometry to one K(2), one K(5), one Na(10), one Na(11), one Na(14), one Na(17), one Na(6), one Na(7), and one Zn(2) atom. In the seventh Sn site, Sn(7) is bonded in a 12-coordinate geometry to one K(1), one K(3), one K(4), one K(6), one K(7), one Na(10), one Na(11), one Na(15), one Na(4), one Na(6), one Na(7), and one Zn(3) atom. In the eighth Sn site, Sn(8) is bonded in a 12-coordinate geometry to one K(2), one K(3), one K(4), one K(6), one K(7), one Na(12), one Na(16), one Na(3), one Na(5), one Na(8), one Na(9), and one Zn(4) atom. is represented by the CIF file [CIF]
data_K7Na17(ZnSn2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.990
_cell_length_b   11.408
_cell_length_c   11.611
_cell_angle_alpha   119.356
_cell_angle_beta   89.893
_cell_angle_gamma   90.256
_symmetry_Int_Tables_number   1
_cell_volume   1153.331
_cell_formula_units_Z   1
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  0.968  0.684  0.643  1.0
  K  K1  1  0.465  0.816  0.354  1.0
  K  K2  1  0.033  0.317  0.355  1.0
  K  K3  1  0.533  0.184  0.645  1.0
  K  K4  1  0.608  0.797  0.677  1.0
  K  K5  1  0.892  0.297  0.677  1.0
  K  K6  1  0.393  0.203  0.323  1.0
  Na  Na7  1  0.159  0.076  0.010  1.0
  Na  Na8  1  0.660  0.424  0.990  1.0
  Na  Na9  1  0.840  0.924  0.990  1.0
  Na  Na10  1  0.339  0.576  0.011  1.0
  Na  Na11  1  0.677  0.427  0.507  1.0
  Na  Na12  1  0.176  0.070  0.491  1.0
  Na  Na13  1  0.320  0.574  0.491  1.0
  Na  Na14  1  0.826  0.925  0.505  1.0
  Na  Na15  1  0.780  0.738  0.169  1.0
  Na  Na16  1  0.278  0.761  0.832  1.0
  Na  Na17  1  0.222  0.262  0.832  1.0
  Na  Na18  1  0.722  0.238  0.168  1.0
  Na  Na19  1  0.976  0.381  0.078  1.0
  Na  Na20  1  0.476  0.122  0.925  1.0
  Na  Na21  1  0.025  0.622  0.925  1.0
  Na  Na22  1  0.525  0.878  0.075  1.0
  Na  Na23  1  0.109  0.703  0.320  1.0
  Zn  Zn24  1  0.536  0.488  0.256  1.0
  Zn  Zn25  1  0.035  0.013  0.744  1.0
  Zn  Zn26  1  0.465  0.512  0.743  1.0
  Zn  Zn27  1  0.965  0.988  0.257  1.0
  Sn  Sn28  1  0.305  0.388  0.149  1.0
  Sn  Sn29  1  0.807  0.115  0.853  1.0
  Sn  Sn30  1  0.693  0.615  0.853  1.0
  Sn  Sn31  1  0.192  0.883  0.150  1.0
  Sn  Sn32  1  0.779  0.578  0.339  1.0
  Sn  Sn33  1  0.275  0.922  0.659  1.0
  Sn  Sn34  1  0.223  0.423  0.661  1.0
  Sn  Sn35  1  0.723  0.077  0.339  1.0
[/CIF]
.
The structure described by K7Na17(ZnSn2)4 crystallizes in the triclinic P1 space group. There are seven inequivalent K sites. In the first K site, K(1) is bonded in a 2-coordinate geometry to one Na(17), one Zn(2), one Sn(3), one Sn(5), and one Sn(7) atom. In the second K site, K(2) is bonded in a 2-coordinate geometry to one Na(17), one Zn(1), one Sn(4), one Sn(6), and one Sn(8) atom. In the third K site, K(3) is bonded in a 2-coordinate geometry to one Zn(4), one Sn(1), one Sn(5), one Sn(7), and one Sn(8) atom. In the fourth K site, K(4) is bonded in a 2-coordinate geometry to one Zn(3), one Sn(2), one Sn(7), and one Sn(8) atom. In the fifth K site, K(5) is bonded in a 4-coordinate geometry to one Sn(2), one Sn(3), one Sn(5), and one Sn(6) atom. In the sixth K site, K(6) is bonded in a 4-coordinate geometry to one Sn(2), one Sn(3), one Sn(7), and one Sn(8) atom. In the seventh K site, K(7) is bonded in a 4-coordinate geometry to one Sn(1), one Sn(4), one Sn(7), and one Sn(8) atom. There are seventeen inequivalent Na sites. In the first Na site, Na(1) is bonded in a 3-coordinate geometry to one Zn(2), one Sn(1), and one Sn(4) atom. In the second Na site, Na(2) is bonded in a 3-coordinate geometry to one Zn(1), one Sn(2), and one Sn(3) atom. In the third Na site, Na(3) is bonded in a 3-coordinate geometry to one Zn(4), one Sn(2), one Sn(3), and one Sn(8) atom. In the fourth Na site, Na(4) is bonded in a 3-coordinate geometry to one Na(17), one Zn(3), one Sn(1), one Sn(4), and one Sn(7) atom. In the fifth Na site, Na(5) is bonded in a 4-coordinate geometry to one Zn(3), one Sn(3), one Sn(5), and one Sn(8) atom. In the sixth Na site, Na(6) is bonded in a 4-coordinate geometry to one Na(17), one Zn(4), one Sn(4), one Sn(6), and one Sn(7) atom. In the seventh Na site, Na(7) is bonded in a 4-coordinate geometry to one Na(17), one Zn(1), one Sn(1), one Sn(6), and one Sn(7) atom. In the eighth Na site, Na(8) is bonded in a 4-coordinate geometry to one Na(17), one Zn(2), one Sn(2), one Sn(5), and one Sn(8) atom. In the ninth Na site, Na(9) is bonded in a 4-coordinate geometry to one Na(17), one Zn(4), one Sn(3), one Sn(5), and one Sn(8) atom. In the tenth Na site, Na(10) is bonded in a 4-coordinate geometry to one Zn(3), one Sn(4), one Sn(6), and one Sn(7) atom. In the eleventh Na site, Na(11) is bonded in a 4-coordinate geometry to one Zn(2), one Sn(1), one Sn(6), and one Sn(7) atom. In the twelfth Na site, Na(12) is bonded in a 4-coordinate geometry to one Zn(1), one Sn(2), one Sn(5), and one Sn(8) atom. In the thirteenth Na site, Na(13) is bonded in a 3-coordinate geometry to one Na(17), one Sn(1), one Sn(2), and one Sn(5) atom. In the fourteenth Na site, Na(14) is bonded in a 3-coordinate geometry to one Sn(1), one Sn(2), and one Sn(6) atom. In the fifteenth Na site, Na(15) is bonded in a 3-coordinate geometry to one Sn(3), one Sn(4), and one Sn(7) atom. In the sixteenth Na site, Na(16) is bonded in a 3-coordinate geometry to one Sn(3), one Sn(4), and one Sn(8) atom. In the seventeenth Na site, Na(17) is bonded in a 12-coordinate geometry to one K(1), one K(2), one Na(13), one Na(4), one Na(6), one Na(7), one Na(8), one Na(9), one Sn(1), one Sn(4), one Sn(5), and one Sn(6) atom. There are four inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 6-coordinate geometry to one K(2), one Na(12), one Na(2), one Na(7), one Sn(1), and one Sn(5) atom. In the second Zn site, Zn(2) is bonded in a 6-coordinate geometry to one K(1), one Na(1), one Na(11), one Na(8), one Sn(2), and one Sn(6) atom. In the third Zn site, Zn(3) is bonded in a 6-coordinate geometry to one K(4), one Na(10), one Na(4), one Na(5), one Sn(3), and one Sn(7) atom. In the fourth Zn site, Zn(4) is bonded in a 6-coordinate geometry to one K(3), one Na(3), one Na(6), one Na(9), one Sn(4), and one Sn(8) atom. There are eight inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 10-coordinate geometry to one K(3), one K(7), one Na(1), one Na(11), one Na(13), one Na(14), one Na(17), one Na(4), one Na(7), and one Zn(1) atom. In the second Sn site, Sn(2) is bonded in a 10-coordinate geometry to one K(4), one K(5), one K(6), one Na(12), one Na(13), one Na(14), one Na(2), one Na(3), one Na(8), and one Zn(2) atom. In the third Sn site, Sn(3) is bonded in a 10-coordinate geometry to one K(1), one K(5), one K(6), one Na(15), one Na(16), one Na(2), one Na(3), one Na(5), one Na(9), and one Zn(3) atom. In the fourth Sn site, Sn(4) is bonded in a 10-coordinate geometry to one K(2), one K(7), one Na(1), one Na(10), one Na(15), one Na(16), one Na(17), one Na(4), one Na(6), and one Zn(4) atom. In the fifth Sn site, Sn(5) is bonded in a 10-coordinate geometry to one K(1), one K(3), one K(5), one Na(12), one Na(13), one Na(17), one Na(5), one Na(8), one Na(9), and one Zn(1) atom. In the sixth Sn site, Sn(6) is bonded in a 8-coordinate geometry to one K(2), one K(5), one Na(10), one Na(11), one Na(14), one Na(17), one Na(6), one Na(7), and one Zn(2) atom. In the seventh Sn site, Sn(7) is bonded in a 12-coordinate geometry to one K(1), one K(3), one K(4), one K(6), one K(7), one Na(10), one Na(11), one Na(15), one Na(4), one Na(6), one Na(7), and one Zn(3) atom. In the eighth Sn site, Sn(8) is bonded in a 12-coordinate geometry to one K(2), one K(3), one K(4), one K(6), one K(7), one Na(12), one Na(16), one Na(3), one Na(5), one Na(8), one Na(9), and one Zn(4) atom. is represented by the CIF file [CIF]
data_K7Na17(ZnSn2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.990
_cell_length_b   11.408
_cell_length_c   11.611
_cell_angle_alpha   119.356
_cell_angle_beta   89.893
_cell_angle_gamma   90.256
_symmetry_Int_Tables_number   1
_cell_volume   1153.331
_cell_formula_units_Z   1
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  0.968  0.684  0.643  1.0
  K  K1  1  0.465  0.816  0.354  1.0
  K  K2  1  0.033  0.317  0.355  1.0
  K  K3  1  0.533  0.184  0.645  1.0
  K  K4  1  0.608  0.797  0.677  1.0
  K  K5  1  0.892  0.297  0.677  1.0
  K  K6  1  0.393  0.203  0.323  1.0
  Na  Na7  1  0.159  0.076  0.010  1.0
  Na  Na8  1  0.660  0.424  0.990  1.0
  Na  Na9  1  0.840  0.924  0.990  1.0
  Na  Na10  1  0.339  0.576  0.011  1.0
  Na  Na11  1  0.677  0.427  0.507  1.0
  Na  Na12  1  0.176  0.070  0.491  1.0
  Na  Na13  1  0.320  0.574  0.491  1.0
  Na  Na14  1  0.826  0.925  0.505  1.0
  Na  Na15  1  0.780  0.738  0.169  1.0
  Na  Na16  1  0.278  0.761  0.832  1.0
  Na  Na17  1  0.222  0.262  0.832  1.0
  Na  Na18  1  0.722  0.238  0.168  1.0
  Na  Na19  1  0.976  0.381  0.078  1.0
  Na  Na20  1  0.476  0.122  0.925  1.0
  Na  Na21  1  0.025  0.622  0.925  1.0
  Na  Na22  1  0.525  0.878  0.075  1.0
  Na  Na23  1  0.109  0.703  0.320  1.0
  Zn  Zn24  1  0.536  0.488  0.256  1.0
  Zn  Zn25  1  0.035  0.013  0.744  1.0
  Zn  Zn26  1  0.465  0.512  0.743  1.0
  Zn  Zn27  1  0.965  0.988  0.257  1.0
  Sn  Sn28  1  0.305  0.388  0.149  1.0
  Sn  Sn29  1  0.807  0.115  0.853  1.0
  Sn  Sn30  1  0.693  0.615  0.853  1.0
  Sn  Sn31  1  0.192  0.883  0.150  1.0
  Sn  Sn32  1  0.779  0.578  0.339  1.0
  Sn  Sn33  1  0.275  0.922  0.659  1.0
  Sn  Sn34  1  0.223  0.423  0.661  1.0
  Sn  Sn35  1  0.723  0.077  0.339  1.0
[/CIF]
.