The compound described by K2SbPO6 crystallizes in the orthorhombic Pnma space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to one O(5), two equivalent O(1), two equivalent O(3), and three equivalent O(4) atoms to form distorted KO8 hexagonal bipyramids that share corners with four equivalent K(1)O8 hexagonal bipyramids, corners with four equivalent Sb(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, edges with two equivalent K(1)O8 hexagonal bipyramids, and edges with three equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-54°. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form SbO6 octahedra that share corners with four equivalent K(1)O8 hexagonal bipyramids, corners with two equivalent P(1)O4 tetrahedra, and edges with two equivalent Sb(1)O6 octahedra. P(1) is bonded to one O(3), one O(4), and two equivalent O(1) atoms to form PO4 tetrahedra that share  a cornercorner with one K(1)O8 hexagonal bipyramid, corners with two equivalent Sb(1)O6 octahedra, and edges with three equivalent K(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles are 54°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Sb(1), and one P(1) atom. In the second O site, O(2) is bonded to two equivalent K(2) and two equivalent Sb(1) atoms to form distorted corner-sharing OK2Sb2 tetrahedra. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent K(1), two equivalent K(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(2), three equivalent K(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one K(1) and two equivalent Sb(1) atoms. is represented by the CIF card [CIF]
data_K2SbPO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.986
_cell_length_b   9.577
_cell_length_c   11.254
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   645.168
_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  0.250  0.618  0.160  1.0
  K  K1  1  0.250  0.670  0.808  1.0
  K  K2  1  0.250  0.170  0.692  1.0
  K  K3  1  0.250  0.118  0.340  1.0
  K  K4  1  0.750  0.330  0.192  1.0
  K  K5  1  0.750  0.830  0.308  1.0
  K  K6  1  0.750  0.882  0.660  1.0
  K  K7  1  0.750  0.382  0.840  1.0
  Sb  Sb8  1  0.000  0.500  0.500  1.0
  Sb  Sb9  1  0.500  0.000  0.000  1.0
  Sb  Sb10  1  0.500  0.500  0.500  1.0
  Sb  Sb11  1  0.000  0.000  0.000  1.0
  P  P12  1  0.750  0.697  0.991  1.0
  P  P13  1  0.250  0.803  0.491  1.0
  P  P14  1  0.750  0.197  0.509  1.0
  P  P15  1  0.250  0.303  0.009  1.0
  O  O16  1  0.465  0.711  0.527  1.0
  O  O17  1  0.750  0.034  0.117  1.0
  O  O18  1  0.250  0.966  0.883  1.0
  O  O19  1  0.750  0.170  0.642  1.0
  O  O20  1  0.750  0.570  0.072  1.0
  O  O21  1  0.965  0.789  0.027  1.0
  O  O22  1  0.250  0.330  0.142  1.0
  O  O23  1  0.250  0.430  0.928  1.0
  O  O24  1  0.750  0.670  0.858  1.0
  O  O25  1  0.250  0.830  0.358  1.0
  O  O26  1  0.750  0.500  0.618  1.0
  O  O27  1  0.750  0.070  0.428  1.0
  O  O28  1  0.965  0.289  0.473  1.0
  O  O29  1  0.750  1.000  0.882  1.0
  O  O30  1  0.250  0.000  0.118  1.0
  O  O31  1  0.465  0.211  0.973  1.0
  O  O32  1  0.250  0.466  0.617  1.0
  O  O33  1  0.250  0.500  0.382  1.0
  O  O34  1  0.035  0.711  0.527  1.0
  O  O35  1  0.250  0.930  0.572  1.0
  O  O36  1  0.535  0.289  0.473  1.0
  O  O37  1  0.035  0.211  0.973  1.0
  O  O38  1  0.535  0.789  0.027  1.0
  O  O39  1  0.750  0.534  0.383  1.0
[/CIF]
.
The compound described by K2SbPO6 crystallizes in the orthorhombic Pnma space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to one O(5), two equivalent O(1), two equivalent O(3), and three equivalent O(4) atoms to form distorted KO8 hexagonal bipyramids that share corners with four equivalent K(1)O8 hexagonal bipyramids, corners with four equivalent Sb(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, edges with two equivalent K(1)O8 hexagonal bipyramids, and edges with three equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-54°. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form SbO6 octahedra that share corners with four equivalent K(1)O8 hexagonal bipyramids, corners with two equivalent P(1)O4 tetrahedra, and edges with two equivalent Sb(1)O6 octahedra. P(1) is bonded to one O(3), one O(4), and two equivalent O(1) atoms to form PO4 tetrahedra that share  a cornercorner with one K(1)O8 hexagonal bipyramid, corners with two equivalent Sb(1)O6 octahedra, and edges with three equivalent K(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles are 54°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Sb(1), and one P(1) atom. In the second O site, O(2) is bonded to two equivalent K(2) and two equivalent Sb(1) atoms to form distorted corner-sharing OK2Sb2 tetrahedra. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent K(1), two equivalent K(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(2), three equivalent K(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one K(1) and two equivalent Sb(1) atoms. is represented by the CIF card [CIF]
data_K2SbPO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.986
_cell_length_b   9.577
_cell_length_c   11.254
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   645.168
_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  0.250  0.618  0.160  1.0
  K  K1  1  0.250  0.670  0.808  1.0
  K  K2  1  0.250  0.170  0.692  1.0
  K  K3  1  0.250  0.118  0.340  1.0
  K  K4  1  0.750  0.330  0.192  1.0
  K  K5  1  0.750  0.830  0.308  1.0
  K  K6  1  0.750  0.882  0.660  1.0
  K  K7  1  0.750  0.382  0.840  1.0
  Sb  Sb8  1  0.000  0.500  0.500  1.0
  Sb  Sb9  1  0.500  0.000  0.000  1.0
  Sb  Sb10  1  0.500  0.500  0.500  1.0
  Sb  Sb11  1  0.000  0.000  0.000  1.0
  P  P12  1  0.750  0.697  0.991  1.0
  P  P13  1  0.250  0.803  0.491  1.0
  P  P14  1  0.750  0.197  0.509  1.0
  P  P15  1  0.250  0.303  0.009  1.0
  O  O16  1  0.465  0.711  0.527  1.0
  O  O17  1  0.750  0.034  0.117  1.0
  O  O18  1  0.250  0.966  0.883  1.0
  O  O19  1  0.750  0.170  0.642  1.0
  O  O20  1  0.750  0.570  0.072  1.0
  O  O21  1  0.965  0.789  0.027  1.0
  O  O22  1  0.250  0.330  0.142  1.0
  O  O23  1  0.250  0.430  0.928  1.0
  O  O24  1  0.750  0.670  0.858  1.0
  O  O25  1  0.250  0.830  0.358  1.0
  O  O26  1  0.750  0.500  0.618  1.0
  O  O27  1  0.750  0.070  0.428  1.0
  O  O28  1  0.965  0.289  0.473  1.0
  O  O29  1  0.750  1.000  0.882  1.0
  O  O30  1  0.250  0.000  0.118  1.0
  O  O31  1  0.465  0.211  0.973  1.0
  O  O32  1  0.250  0.466  0.617  1.0
  O  O33  1  0.250  0.500  0.382  1.0
  O  O34  1  0.035  0.711  0.527  1.0
  O  O35  1  0.250  0.930  0.572  1.0
  O  O36  1  0.535  0.289  0.473  1.0
  O  O37  1  0.035  0.211  0.973  1.0
  O  O38  1  0.535  0.789  0.027  1.0
  O  O39  1  0.750  0.534  0.383  1.0
[/CIF]
.