The structure described by K5Sb4 crystallizes in the monoclinic Cm space group. There are five inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to two equivalent Sb(1), two equivalent Sb(4), and three equivalent Sb(3) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to two equivalent Sb(2), two equivalent Sb(3), and three equivalent Sb(4) atoms. In the third K site, K(3) is bonded in a 6-coordinate geometry to one Sb(2), two equivalent Sb(3), and three equivalent Sb(1) atoms. In the fourth K site, K(4) is bonded in a 6-coordinate geometry to one Sb(1), two equivalent Sb(4), and three equivalent Sb(2) atoms. In the fifth K site, K(5) is bonded in a distorted square co-planar geometry to two equivalent Sb(1) and two equivalent Sb(2) atoms. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 9-coordinate geometry to one K(4), two equivalent K(1), two equivalent K(5), three equivalent K(3), and one Sb(3) atom. In the second Sb site, Sb(2) is bonded in a 9-coordinate geometry to one K(3), two equivalent K(2), two equivalent K(5), three equivalent K(4), and one Sb(4) atom. In the third Sb site, Sb(3) is bonded in a 9-coordinate geometry to two equivalent K(2), two equivalent K(3), three equivalent K(1), one Sb(1), and one Sb(4) atom. In the fourth Sb site, Sb(4) is bonded in a 9-coordinate geometry to two equivalent K(1), two equivalent K(4), three equivalent K(2), one Sb(2), and one Sb(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K5Sb4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.852
_cell_length_b   6.852
_cell_length_c   11.393
_cell_angle_alpha   70.226
_cell_angle_beta   70.226
_cell_angle_gamma   47.615
_symmetry_Int_Tables_number   1
_cell_volume   367.131
_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  0.101  0.101  0.110  1.0
  K  K1  1  0.899  0.899  0.893  1.0
  K  K2  1  0.752  0.752  0.335  1.0
  K  K3  1  0.242  0.242  0.667  1.0
  K  K4  1  0.979  0.979  0.513  1.0
  Sb  Sb5  1  0.457  0.457  0.324  1.0
  Sb  Sb6  1  0.545  0.545  0.675  1.0
  Sb  Sb7  1  0.395  0.395  0.109  1.0
  Sb  Sb8  1  0.605  0.605  0.892  1.0
[/CIF]
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The structure described by K5Sb4 crystallizes in the monoclinic Cm space group. There are five inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to two equivalent Sb(1), two equivalent Sb(4), and three equivalent Sb(3) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to two equivalent Sb(2), two equivalent Sb(3), and three equivalent Sb(4) atoms. In the third K site, K(3) is bonded in a 6-coordinate geometry to one Sb(2), two equivalent Sb(3), and three equivalent Sb(1) atoms. In the fourth K site, K(4) is bonded in a 6-coordinate geometry to one Sb(1), two equivalent Sb(4), and three equivalent Sb(2) atoms. In the fifth K site, K(5) is bonded in a distorted square co-planar geometry to two equivalent Sb(1) and two equivalent Sb(2) atoms. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 9-coordinate geometry to one K(4), two equivalent K(1), two equivalent K(5), three equivalent K(3), and one Sb(3) atom. In the second Sb site, Sb(2) is bonded in a 9-coordinate geometry to one K(3), two equivalent K(2), two equivalent K(5), three equivalent K(4), and one Sb(4) atom. In the third Sb site, Sb(3) is bonded in a 9-coordinate geometry to two equivalent K(2), two equivalent K(3), three equivalent K(1), one Sb(1), and one Sb(4) atom. In the fourth Sb site, Sb(4) is bonded in a 9-coordinate geometry to two equivalent K(1), two equivalent K(4), three equivalent K(2), one Sb(2), and one Sb(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K5Sb4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.852
_cell_length_b   6.852
_cell_length_c   11.393
_cell_angle_alpha   70.226
_cell_angle_beta   70.226
_cell_angle_gamma   47.615
_symmetry_Int_Tables_number   1
_cell_volume   367.131
_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  0.101  0.101  0.110  1.0
  K  K1  1  0.899  0.899  0.893  1.0
  K  K2  1  0.752  0.752  0.335  1.0
  K  K3  1  0.242  0.242  0.667  1.0
  K  K4  1  0.979  0.979  0.513  1.0
  Sb  Sb5  1  0.457  0.457  0.324  1.0
  Sb  Sb6  1  0.545  0.545  0.675  1.0
  Sb  Sb7  1  0.395  0.395  0.109  1.0
  Sb  Sb8  1  0.605  0.605  0.892  1.0
[/CIF]
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