The structure described by KSrTbSbO6 is (Cubic) Perovskite-derived structured and crystallizes in the orthorhombic Pnnn space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form KO12 cuboctahedra that share corners with four equivalent K(2)O12 cuboctahedra, corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Tb(1)O6 octahedra, and faces with four equivalent Sb(1)O6 octahedra. In the second K site, K(2) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form KO12 cuboctahedra that share corners with four equivalent K(1)O12 cuboctahedra, corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent K(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Tb(1)O6 octahedra, and faces with four equivalent Sb(1)O6 octahedra. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form SrO12 cuboctahedra that share corners with four equivalent K(1)O12 cuboctahedra, corners with four equivalent K(2)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent K(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Tb(1)O6 octahedra, and faces with four equivalent Sb(1)O6 octahedra. In the second Sr site, Sr(2) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form SrO12 cuboctahedra that share corners with four equivalent K(1)O12 cuboctahedra, corners with four equivalent K(2)O12 cuboctahedra, corners with four equivalent Sr(1)O12 cuboctahedra, faces with two equivalent K(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Tb(1)O6 octahedra, and faces with four equivalent Sb(1)O6 octahedra. Tb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form TbO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra, faces with two equivalent K(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 3-8°. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SbO6 octahedra that share corners with six equivalent Tb(1)O6 octahedra, faces with two equivalent K(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 3-8°. There are three 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 Sr(1), one Sr(2), one Tb(1), and one Sb(1) atom. In the second O site, O(2) is bonded in a distorted linear geometry to one K(1), one K(2), one Sr(1), one Sr(2), one Tb(1), and one Sb(1) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one K(1), one K(2), one Sr(1), one Sr(2), one Tb(1), and one Sb(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KSrTbSbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.987
_cell_length_b   5.987
_cell_length_c   8.422
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.013
_symmetry_Int_Tables_number   1
_cell_volume   301.831
_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  0.500  0.500  0.500  1.0
  K  K1  1  0.500  0.500  1.000  1.0
  O  O2  1  0.782  0.246  0.750  1.0
  O  O3  1  0.218  0.754  0.750  1.0
  O  O4  1  0.754  0.218  0.250  1.0
  O  O5  1  0.246  0.782  0.250  1.0
  O  O6  1  0.771  0.743  0.750  1.0
  O  O7  1  0.743  0.771  0.250  1.0
  O  O8  1  0.229  0.257  0.750  1.0
  O  O9  1  0.257  0.229  0.250  1.0
  O  O10  1  0.500  0.000  0.014  1.0
  O  O11  1  0.000  0.500  0.986  1.0
  O  O12  1  0.500  0.000  0.486  1.0
  O  O13  1  1.000  0.500  0.514  1.0
  Sb  Sb14  1  0.500  0.000  0.250  1.0
  Sb  Sb15  1  0.000  0.500  0.750  1.0
  Sr  Sr16  1  0.000  0.000  0.000  1.0
  Sr  Sr17  1  0.000  0.000  0.500  1.0
  Tb  Tb18  1  0.500  0.000  0.750  1.0
  Tb  Tb19  1  0.000  0.500  0.250  1.0
[/CIF]
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The structure described by KSrTbSbO6 is (Cubic) Perovskite-derived structured and crystallizes in the orthorhombic Pnnn space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form KO12 cuboctahedra that share corners with four equivalent K(2)O12 cuboctahedra, corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Tb(1)O6 octahedra, and faces with four equivalent Sb(1)O6 octahedra. In the second K site, K(2) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form KO12 cuboctahedra that share corners with four equivalent K(1)O12 cuboctahedra, corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent K(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Tb(1)O6 octahedra, and faces with four equivalent Sb(1)O6 octahedra. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form SrO12 cuboctahedra that share corners with four equivalent K(1)O12 cuboctahedra, corners with four equivalent K(2)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent K(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Tb(1)O6 octahedra, and faces with four equivalent Sb(1)O6 octahedra. In the second Sr site, Sr(2) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form SrO12 cuboctahedra that share corners with four equivalent K(1)O12 cuboctahedra, corners with four equivalent K(2)O12 cuboctahedra, corners with four equivalent Sr(1)O12 cuboctahedra, faces with two equivalent K(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Tb(1)O6 octahedra, and faces with four equivalent Sb(1)O6 octahedra. Tb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form TbO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra, faces with two equivalent K(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 3-8°. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SbO6 octahedra that share corners with six equivalent Tb(1)O6 octahedra, faces with two equivalent K(1)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 3-8°. There are three 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 Sr(1), one Sr(2), one Tb(1), and one Sb(1) atom. In the second O site, O(2) is bonded in a distorted linear geometry to one K(1), one K(2), one Sr(1), one Sr(2), one Tb(1), and one Sb(1) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one K(1), one K(2), one Sr(1), one Sr(2), one Tb(1), and one Sb(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KSrTbSbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.987
_cell_length_b   5.987
_cell_length_c   8.422
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.013
_symmetry_Int_Tables_number   1
_cell_volume   301.831
_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  0.500  0.500  0.500  1.0
  K  K1  1  0.500  0.500  1.000  1.0
  O  O2  1  0.782  0.246  0.750  1.0
  O  O3  1  0.218  0.754  0.750  1.0
  O  O4  1  0.754  0.218  0.250  1.0
  O  O5  1  0.246  0.782  0.250  1.0
  O  O6  1  0.771  0.743  0.750  1.0
  O  O7  1  0.743  0.771  0.250  1.0
  O  O8  1  0.229  0.257  0.750  1.0
  O  O9  1  0.257  0.229  0.250  1.0
  O  O10  1  0.500  0.000  0.014  1.0
  O  O11  1  0.000  0.500  0.986  1.0
  O  O12  1  0.500  0.000  0.486  1.0
  O  O13  1  1.000  0.500  0.514  1.0
  Sb  Sb14  1  0.500  0.000  0.250  1.0
  Sb  Sb15  1  0.000  0.500  0.750  1.0
  Sr  Sr16  1  0.000  0.000  0.000  1.0
  Sr  Sr17  1  0.000  0.000  0.500  1.0
  Tb  Tb18  1  0.500  0.000  0.750  1.0
  Tb  Tb19  1  0.000  0.500  0.250  1.0
[/CIF]
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