The compound described by K3SnSb3 crystallizes in the triclinic P-1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to two equivalent Sb(1) and four equivalent Sb(2) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to two equivalent Sn(1) and four equivalent Sb(3) atoms. In the third K site, K(3) is bonded to one Sn(1), one Sb(1), and three equivalent Sb(3) atoms to form distorted KSnSb4 square pyramids that share corners with two equivalent Sn(1)K3Sb3 octahedra, corners with four equivalent Sb(1)K3SnSb2 octahedra, corners with two equivalent Sb(2)K5SnSb pentagonal bipyramids, corners with two equivalent Sb(3)K5SnSb pentagonal bipyramids, corners with two equivalent K(3)SnSb4 square pyramids,  an edgeedge with one Sn(1)K3Sb3 octahedra,  an edgeedge with one K(4)SnSb4 square pyramid, and edges with two equivalent K(3)SnSb4 square pyramids. The corner-sharing octahedral tilt angles range from 13-113°. In the fourth K site, K(4) is bonded to one Sn(1), one Sb(1), and three equivalent Sb(2) atoms to form distorted KSnSb4 square pyramids that share corners with two equivalent Sb(1)K3SnSb2 octahedra, corners with four equivalent Sn(1)K3Sb3 octahedra, corners with two equivalent Sb(2)K5SnSb pentagonal bipyramids, corners with two equivalent Sb(3)K5SnSb pentagonal bipyramids, corners with two equivalent K(4)SnSb4 square pyramids,  an edgeedge with one Sb(1)K3SnSb2 octahedra,  an edgeedge with one K(3)SnSb4 square pyramid, and edges with two equivalent K(4)SnSb4 square pyramids. The corner-sharing octahedral tilt angles range from 14-116°. Sn(1) is bonded to one K(2), one K(3), one K(4), one Sb(1), one Sb(2), and one Sb(3) atom to form distorted SnK3Sb3 octahedra that share  a cornercorner with one Sn(1)K3Sb3 octahedra, corners with two equivalent Sb(2)K5SnSb pentagonal bipyramids, corners with four equivalent Sb(3)K5SnSb pentagonal bipyramids, corners with two equivalent K(3)SnSb4 square pyramids, corners with four equivalent K(4)SnSb4 square pyramids, edges with two equivalent Sb(1)K3SnSb2 octahedra,  an edgeedge with one Sb(2)K5SnSb pentagonal bipyramid, edges with two equivalent Sb(3)K5SnSb pentagonal bipyramids, and  an edgeedge with one K(3)SnSb4 square pyramid. The corner-sharing octahedra are not tilted. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one K(1), one K(3), one K(4), one Sn(1), one Sb(2), and one Sb(3) atom to form distorted SbK3SnSb2 octahedra that share  a cornercorner with one Sb(1)K3SnSb2 octahedra, corners with two equivalent Sb(3)K5SnSb pentagonal bipyramids, corners with four equivalent Sb(2)K5SnSb pentagonal bipyramids, corners with two equivalent K(4)SnSb4 square pyramids, corners with four equivalent K(3)SnSb4 square pyramids, edges with two equivalent Sn(1)K3Sb3 octahedra,  an edgeedge with one Sb(3)K5SnSb pentagonal bipyramid, edges with two equivalent Sb(2)K5SnSb pentagonal bipyramids, and  an edgeedge with one K(4)SnSb4 square pyramid. The corner-sharing octahedra are not tilted. In the second Sb site, Sb(2) is bonded to two equivalent K(1), three equivalent K(4), one Sn(1), and one Sb(1) atom to form distorted SbK5SnSb pentagonal bipyramids that share corners with two equivalent Sn(1)K3Sb3 octahedra, corners with four equivalent Sb(1)K3SnSb2 octahedra, corners with two equivalent Sb(2)K5SnSb pentagonal bipyramids, corners with two equivalent K(3)SnSb4 square pyramids, corners with two equivalent K(4)SnSb4 square pyramids,  an edgeedge with one Sn(1)K3Sb3 octahedra, edges with two equivalent Sb(1)K3SnSb2 octahedra,  an edgeedge with one Sb(3)K5SnSb pentagonal bipyramid, and edges with five equivalent Sb(2)K5SnSb pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 20-132°. In the third Sb site, Sb(3) is bonded to two equivalent K(2), three equivalent K(3), one Sn(1), and one Sb(1) atom to form distorted SbK5SnSb pentagonal bipyramids that share corners with two equivalent Sb(1)K3SnSb2 octahedra, corners with four equivalent Sn(1)K3Sb3 octahedra, corners with two equivalent Sb(3)K5SnSb pentagonal bipyramids, corners with two equivalent K(3)SnSb4 square pyramids, corners with two equivalent K(4)SnSb4 square pyramids,  an edgeedge with one Sb(1)K3SnSb2 octahedra, edges with two equivalent Sn(1)K3Sb3 octahedra,  an edgeedge with one Sb(2)K5SnSb pentagonal bipyramid, and edges with five equivalent Sb(3)K5SnSb pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 23-133°. is represented by the Crystallographic Information File (CIF) [CIF]
data_K3SnSb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.269
_cell_length_b   15.558
_cell_length_c   7.751
_cell_angle_alpha   103.566
_cell_angle_beta   111.981
_cell_angle_gamma   89.781
_symmetry_Int_Tables_number   1
_cell_volume   570.283
_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  0.000  0.000  0.000  1.0
  K  K1  1  0.000  0.500  0.000  1.0
  K  K2  1  0.304  0.371  0.552  1.0
  K  K3  1  0.315  0.867  0.564  1.0
  K  K4  1  0.685  0.133  0.436  1.0
  K  K5  1  0.696  0.629  0.448  1.0
  Sn  Sn6  1  0.873  0.720  0.120  1.0
  Sn  Sn7  1  0.127  0.280  0.880  1.0
  Sb  Sb8  1  0.858  0.220  0.101  1.0
  Sb  Sb9  1  0.383  0.115  0.784  1.0
  Sb  Sb10  1  0.384  0.618  0.792  1.0
  Sb  Sb11  1  0.616  0.382  0.208  1.0
  Sb  Sb12  1  0.617  0.885  0.216  1.0
  Sb  Sb13  1  0.142  0.780  0.899  1.0
[/CIF]
.
The compound described by K3SnSb3 crystallizes in the triclinic P-1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to two equivalent Sb(1) and four equivalent Sb(2) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to two equivalent Sn(1) and four equivalent Sb(3) atoms. In the third K site, K(3) is bonded to one Sn(1), one Sb(1), and three equivalent Sb(3) atoms to form distorted KSnSb4 square pyramids that share corners with two equivalent Sn(1)K3Sb3 octahedra, corners with four equivalent Sb(1)K3SnSb2 octahedra, corners with two equivalent Sb(2)K5SnSb pentagonal bipyramids, corners with two equivalent Sb(3)K5SnSb pentagonal bipyramids, corners with two equivalent K(3)SnSb4 square pyramids,  an edgeedge with one Sn(1)K3Sb3 octahedra,  an edgeedge with one K(4)SnSb4 square pyramid, and edges with two equivalent K(3)SnSb4 square pyramids. The corner-sharing octahedral tilt angles range from 13-113°. In the fourth K site, K(4) is bonded to one Sn(1), one Sb(1), and three equivalent Sb(2) atoms to form distorted KSnSb4 square pyramids that share corners with two equivalent Sb(1)K3SnSb2 octahedra, corners with four equivalent Sn(1)K3Sb3 octahedra, corners with two equivalent Sb(2)K5SnSb pentagonal bipyramids, corners with two equivalent Sb(3)K5SnSb pentagonal bipyramids, corners with two equivalent K(4)SnSb4 square pyramids,  an edgeedge with one Sb(1)K3SnSb2 octahedra,  an edgeedge with one K(3)SnSb4 square pyramid, and edges with two equivalent K(4)SnSb4 square pyramids. The corner-sharing octahedral tilt angles range from 14-116°. Sn(1) is bonded to one K(2), one K(3), one K(4), one Sb(1), one Sb(2), and one Sb(3) atom to form distorted SnK3Sb3 octahedra that share  a cornercorner with one Sn(1)K3Sb3 octahedra, corners with two equivalent Sb(2)K5SnSb pentagonal bipyramids, corners with four equivalent Sb(3)K5SnSb pentagonal bipyramids, corners with two equivalent K(3)SnSb4 square pyramids, corners with four equivalent K(4)SnSb4 square pyramids, edges with two equivalent Sb(1)K3SnSb2 octahedra,  an edgeedge with one Sb(2)K5SnSb pentagonal bipyramid, edges with two equivalent Sb(3)K5SnSb pentagonal bipyramids, and  an edgeedge with one K(3)SnSb4 square pyramid. The corner-sharing octahedra are not tilted. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one K(1), one K(3), one K(4), one Sn(1), one Sb(2), and one Sb(3) atom to form distorted SbK3SnSb2 octahedra that share  a cornercorner with one Sb(1)K3SnSb2 octahedra, corners with two equivalent Sb(3)K5SnSb pentagonal bipyramids, corners with four equivalent Sb(2)K5SnSb pentagonal bipyramids, corners with two equivalent K(4)SnSb4 square pyramids, corners with four equivalent K(3)SnSb4 square pyramids, edges with two equivalent Sn(1)K3Sb3 octahedra,  an edgeedge with one Sb(3)K5SnSb pentagonal bipyramid, edges with two equivalent Sb(2)K5SnSb pentagonal bipyramids, and  an edgeedge with one K(4)SnSb4 square pyramid. The corner-sharing octahedra are not tilted. In the second Sb site, Sb(2) is bonded to two equivalent K(1), three equivalent K(4), one Sn(1), and one Sb(1) atom to form distorted SbK5SnSb pentagonal bipyramids that share corners with two equivalent Sn(1)K3Sb3 octahedra, corners with four equivalent Sb(1)K3SnSb2 octahedra, corners with two equivalent Sb(2)K5SnSb pentagonal bipyramids, corners with two equivalent K(3)SnSb4 square pyramids, corners with two equivalent K(4)SnSb4 square pyramids,  an edgeedge with one Sn(1)K3Sb3 octahedra, edges with two equivalent Sb(1)K3SnSb2 octahedra,  an edgeedge with one Sb(3)K5SnSb pentagonal bipyramid, and edges with five equivalent Sb(2)K5SnSb pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 20-132°. In the third Sb site, Sb(3) is bonded to two equivalent K(2), three equivalent K(3), one Sn(1), and one Sb(1) atom to form distorted SbK5SnSb pentagonal bipyramids that share corners with two equivalent Sb(1)K3SnSb2 octahedra, corners with four equivalent Sn(1)K3Sb3 octahedra, corners with two equivalent Sb(3)K5SnSb pentagonal bipyramids, corners with two equivalent K(3)SnSb4 square pyramids, corners with two equivalent K(4)SnSb4 square pyramids,  an edgeedge with one Sb(1)K3SnSb2 octahedra, edges with two equivalent Sn(1)K3Sb3 octahedra,  an edgeedge with one Sb(2)K5SnSb pentagonal bipyramid, and edges with five equivalent Sb(3)K5SnSb pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 23-133°. is represented by the Crystallographic Information File (CIF) [CIF]
data_K3SnSb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.269
_cell_length_b   15.558
_cell_length_c   7.751
_cell_angle_alpha   103.566
_cell_angle_beta   111.981
_cell_angle_gamma   89.781
_symmetry_Int_Tables_number   1
_cell_volume   570.283
_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  0.000  0.000  0.000  1.0
  K  K1  1  0.000  0.500  0.000  1.0
  K  K2  1  0.304  0.371  0.552  1.0
  K  K3  1  0.315  0.867  0.564  1.0
  K  K4  1  0.685  0.133  0.436  1.0
  K  K5  1  0.696  0.629  0.448  1.0
  Sn  Sn6  1  0.873  0.720  0.120  1.0
  Sn  Sn7  1  0.127  0.280  0.880  1.0
  Sb  Sb8  1  0.858  0.220  0.101  1.0
  Sb  Sb9  1  0.383  0.115  0.784  1.0
  Sb  Sb10  1  0.384  0.618  0.792  1.0
  Sb  Sb11  1  0.616  0.382  0.208  1.0
  Sb  Sb12  1  0.617  0.885  0.216  1.0
  Sb  Sb13  1  0.142  0.780  0.899  1.0
[/CIF]
.