The structure described by MgFe2(SbO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(7), and one O(8) atom. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(5), one O(6), one O(7), and one O(8) atom. In the second Fe site, Fe(2) is bonded to one O(1), one O(2), one O(3), one O(5), one O(7), and one O(8) atom to form distorted FeO6 octahedra that share corners with four equivalent Sb(1)O6 octahedra and edges with two equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 41-64°. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form SbO6 octahedra that share corners with four equivalent Fe(2)O6 octahedra and corners with four equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 41-64°. In the second Sb site, Sb(2) is bonded to one O(1), one O(2), one O(4), one O(6), one O(7), and one O(8) atom to form SbO6 octahedra that share corners with four equivalent Sb(1)O6 octahedra and edges with two equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-56°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Fe(1), one Fe(2), and one Sb(2) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Mg(1), one Fe(1), one Fe(2), one Sb(1), and one Sb(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mg(1), one Fe(2), and one Sb(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Mg(1), one Sb(1), and one Sb(2) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Fe(1), one Fe(2), and one Sb(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Fe(1), one Sb(1), and one Sb(2) atom. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Fe(1), one Fe(2), and one Sb(2) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Mg(1), one Fe(1), one Fe(2), one Sb(1), and one Sb(2) atom. is represented by the CIF file [CIF]
data_MgFe2(SbO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.820
_cell_length_b   5.776
_cell_length_c   5.844
_cell_angle_alpha   72.448
_cell_angle_beta   114.177
_cell_angle_gamma   73.188
_symmetry_Int_Tables_number   1
_cell_volume   150.412
_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
  Mg  Mg0  1  0.735  0.543  0.713  1.0
  Fe  Fe1  1  0.743  0.926  0.337  1.0
  Fe  Fe2  1  0.459  0.517  0.023  1.0
  Sb  Sb3  1  0.266  0.211  0.523  1.0
  Sb  Sb4  1  0.043  0.936  0.020  1.0
  O  O5  1  0.992  0.741  0.793  1.0
  O  O6  1  0.593  0.214  0.827  1.0
  O  O7  1  0.456  0.807  0.736  1.0
  O  O8  1  0.036  0.242  0.722  1.0
  O  O9  1  0.458  0.231  0.311  1.0
  O  O10  1  0.033  0.647  0.318  1.0
  O  O11  1  0.465  0.743  0.264  1.0
  O  O12  1  0.959  0.208  0.198  1.0
[/CIF]
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The structure described by MgFe2(SbO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(7), and one O(8) atom. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(5), one O(6), one O(7), and one O(8) atom. In the second Fe site, Fe(2) is bonded to one O(1), one O(2), one O(3), one O(5), one O(7), and one O(8) atom to form distorted FeO6 octahedra that share corners with four equivalent Sb(1)O6 octahedra and edges with two equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 41-64°. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form SbO6 octahedra that share corners with four equivalent Fe(2)O6 octahedra and corners with four equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 41-64°. In the second Sb site, Sb(2) is bonded to one O(1), one O(2), one O(4), one O(6), one O(7), and one O(8) atom to form SbO6 octahedra that share corners with four equivalent Sb(1)O6 octahedra and edges with two equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-56°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Fe(1), one Fe(2), and one Sb(2) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Mg(1), one Fe(1), one Fe(2), one Sb(1), and one Sb(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mg(1), one Fe(2), and one Sb(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Mg(1), one Sb(1), and one Sb(2) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Fe(1), one Fe(2), and one Sb(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Fe(1), one Sb(1), and one Sb(2) atom. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Fe(1), one Fe(2), and one Sb(2) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Mg(1), one Fe(1), one Fe(2), one Sb(1), and one Sb(2) atom. is represented by the CIF file [CIF]
data_MgFe2(SbO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.820
_cell_length_b   5.776
_cell_length_c   5.844
_cell_angle_alpha   72.448
_cell_angle_beta   114.177
_cell_angle_gamma   73.188
_symmetry_Int_Tables_number   1
_cell_volume   150.412
_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
  Mg  Mg0  1  0.735  0.543  0.713  1.0
  Fe  Fe1  1  0.743  0.926  0.337  1.0
  Fe  Fe2  1  0.459  0.517  0.023  1.0
  Sb  Sb3  1  0.266  0.211  0.523  1.0
  Sb  Sb4  1  0.043  0.936  0.020  1.0
  O  O5  1  0.992  0.741  0.793  1.0
  O  O6  1  0.593  0.214  0.827  1.0
  O  O7  1  0.456  0.807  0.736  1.0
  O  O8  1  0.036  0.242  0.722  1.0
  O  O9  1  0.458  0.231  0.311  1.0
  O  O10  1  0.033  0.647  0.318  1.0
  O  O11  1  0.465  0.743  0.264  1.0
  O  O12  1  0.959  0.208  0.198  1.0
[/CIF]
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