The compound described by Fe2BiSbO7 crystallizes in the orthorhombic Imma space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(4), and four equivalent O(3) atoms. In the second Fe site, Fe(2) is bonded in a body-centered cubic geometry to two equivalent O(2), two equivalent O(4), and four equivalent O(3) atoms. Bi(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form BiO6 octahedra that share corners with two equivalent Bi(1)O6 octahedra and corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-59°. Sb(1) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form SbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra and corners with four equivalent Bi(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-52°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Fe(1) and two equivalent Sb(1) atoms. In the second O site, O(2) is bonded to two equivalent Fe(2) and two equivalent Bi(1) atoms to form OFe2Bi2 tetrahedra that share corners with two equivalent O(4)Fe4 tetrahedra, corners with four equivalent O(2)Fe2Bi2 tetrahedra, and  an edgeedge with one O(4)Fe4 tetrahedra. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Fe(1), one Fe(2), one Bi(1), and one Sb(1) atom. In the fourth O site, O(4) is bonded to two equivalent Fe(1) and two equivalent Fe(2) atoms to form OFe4 tetrahedra that share corners with two equivalent O(2)Fe2Bi2 tetrahedra, corners with four equivalent O(4)Fe4 tetrahedra, and  an edgeedge with one O(2)Fe2Bi2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Fe2BiSbO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.379
_cell_length_b   7.379
_cell_length_c   7.379
_cell_angle_alpha   120.657
_cell_angle_beta   119.155
_cell_angle_gamma   90.168
_symmetry_Int_Tables_number   1
_cell_volume   284.427
_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
  Fe  Fe0  1  0.500  0.500  0.000  1.0
  Fe  Fe1  1  0.000  0.500  0.500  1.0
  Fe  Fe2  1  0.000  0.500  0.000  1.0
  Fe  Fe3  1  0.000  0.000  0.500  1.0
  Bi  Bi4  1  0.000  0.000  0.000  1.0
  Bi  Bi5  1  0.500  0.000  0.500  1.0
  Sb  Sb6  1  0.500  0.000  0.000  1.0
  Sb  Sb7  1  0.500  0.500  0.500  1.0
  O  O8  1  0.562  0.312  0.250  1.0
  O  O9  1  0.148  0.898  0.250  1.0
  O  O10  1  0.571  0.348  0.672  1.0
  O  O11  1  0.176  0.898  0.828  1.0
  O  O12  1  0.176  0.348  0.277  1.0
  O  O13  1  0.571  0.898  0.223  1.0
  O  O14  1  0.438  0.688  0.750  1.0
  O  O15  1  0.852  0.102  0.750  1.0
  O  O16  1  0.429  0.652  0.328  1.0
  O  O17  1  0.824  0.102  0.172  1.0
  O  O18  1  0.824  0.652  0.723  1.0
  O  O19  1  0.429  0.102  0.777  1.0
  O  O20  1  0.865  0.615  0.250  1.0
  O  O21  1  0.135  0.385  0.750  1.0
[/CIF]
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The compound described by Fe2BiSbO7 crystallizes in the orthorhombic Imma space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(4), and four equivalent O(3) atoms. In the second Fe site, Fe(2) is bonded in a body-centered cubic geometry to two equivalent O(2), two equivalent O(4), and four equivalent O(3) atoms. Bi(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form BiO6 octahedra that share corners with two equivalent Bi(1)O6 octahedra and corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-59°. Sb(1) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form SbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra and corners with four equivalent Bi(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-52°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Fe(1) and two equivalent Sb(1) atoms. In the second O site, O(2) is bonded to two equivalent Fe(2) and two equivalent Bi(1) atoms to form OFe2Bi2 tetrahedra that share corners with two equivalent O(4)Fe4 tetrahedra, corners with four equivalent O(2)Fe2Bi2 tetrahedra, and  an edgeedge with one O(4)Fe4 tetrahedra. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Fe(1), one Fe(2), one Bi(1), and one Sb(1) atom. In the fourth O site, O(4) is bonded to two equivalent Fe(1) and two equivalent Fe(2) atoms to form OFe4 tetrahedra that share corners with two equivalent O(2)Fe2Bi2 tetrahedra, corners with four equivalent O(4)Fe4 tetrahedra, and  an edgeedge with one O(2)Fe2Bi2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Fe2BiSbO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.379
_cell_length_b   7.379
_cell_length_c   7.379
_cell_angle_alpha   120.657
_cell_angle_beta   119.155
_cell_angle_gamma   90.168
_symmetry_Int_Tables_number   1
_cell_volume   284.427
_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
  Fe  Fe0  1  0.500  0.500  0.000  1.0
  Fe  Fe1  1  0.000  0.500  0.500  1.0
  Fe  Fe2  1  0.000  0.500  0.000  1.0
  Fe  Fe3  1  0.000  0.000  0.500  1.0
  Bi  Bi4  1  0.000  0.000  0.000  1.0
  Bi  Bi5  1  0.500  0.000  0.500  1.0
  Sb  Sb6  1  0.500  0.000  0.000  1.0
  Sb  Sb7  1  0.500  0.500  0.500  1.0
  O  O8  1  0.562  0.312  0.250  1.0
  O  O9  1  0.148  0.898  0.250  1.0
  O  O10  1  0.571  0.348  0.672  1.0
  O  O11  1  0.176  0.898  0.828  1.0
  O  O12  1  0.176  0.348  0.277  1.0
  O  O13  1  0.571  0.898  0.223  1.0
  O  O14  1  0.438  0.688  0.750  1.0
  O  O15  1  0.852  0.102  0.750  1.0
  O  O16  1  0.429  0.652  0.328  1.0
  O  O17  1  0.824  0.102  0.172  1.0
  O  O18  1  0.824  0.652  0.723  1.0
  O  O19  1  0.429  0.102  0.777  1.0
  O  O20  1  0.865  0.615  0.250  1.0
  O  O21  1  0.135  0.385  0.750  1.0
[/CIF]
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