The material described by Fe3Co2Sb(PO4)6 crystallizes in the trigonal R3 space group. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to three equivalent O(4) and three equivalent O(8) atoms to form FeO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  a faceface with one Co(2)O6 octahedra. In the second Fe site, Fe(2) is bonded to three equivalent O(2) and three equivalent O(5) atoms to form distorted FeO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  a faceface with one Co(1)O6 octahedra. In the third Fe site, Fe(3) is bonded to three equivalent O(1) and three equivalent O(7) atoms to form FeO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  a faceface with one Co(2)O6 octahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to three equivalent O(2) and three equivalent O(6) atoms to form distorted CoO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra,  a faceface with one Fe(2)O6 octahedra, and  a faceface with one Sb(1)O6 octahedra. In the second Co site, Co(2) is bonded to three equivalent O(4) and three equivalent O(7) atoms to form distorted CoO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra,  a faceface with one Fe(1)O6 octahedra, and  a faceface with one Fe(3)O6 octahedra. Sb(1) is bonded to three equivalent O(3) and three equivalent O(6) atoms to form SbO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  a faceface with one Co(1)O6 octahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra, and  a cornercorner with one Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-51°. In the second P site, P(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra, and  a cornercorner with one Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-49°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Fe(3) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Fe(2), one Co(1), and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Sb(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Fe(1), one Co(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Fe(2) and one P(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Co(1), one Sb(1), and one P(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Fe(3), one Co(2), and one P(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Fe(1) and one P(2) atom. is represented by the CIF file [CIF]
data_Fe3Co2Sb(PO4)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.558
_cell_length_b   8.558
_cell_length_c   8.558
_cell_angle_alpha   60.914
_cell_angle_beta   60.914
_cell_angle_gamma   60.914
_symmetry_Int_Tables_number   1
_cell_volume   452.257
_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
  Fe  Fe0  1  0.355  0.355  0.355  1.0
  Fe  Fe1  1  0.145  0.145  0.145  1.0
  Fe  Fe2  1  0.643  0.643  0.643  1.0
  Co  Co3  1  0.007  0.007  0.007  1.0
  Co  Co4  1  0.499  0.499  0.499  1.0
  Sb  Sb5  1  0.857  0.857  0.857  1.0
  P  P6  1  0.746  0.047  0.452  1.0
  P  P7  1  0.047  0.452  0.746  1.0
  P  P8  1  0.452  0.746  0.047  1.0
  P  P9  1  0.541  0.252  0.953  1.0
  P  P10  1  0.953  0.541  0.252  1.0
  P  P11  1  0.252  0.953  0.541  1.0
  O  O12  1  0.888  0.501  0.682  1.0
  O  O13  1  0.501  0.682  0.888  1.0
  O  O14  1  0.682  0.888  0.501  1.0
  O  O15  1  0.910  0.059  0.261  1.0
  O  O16  1  0.813  0.011  0.613  1.0
  O  O17  1  0.589  0.243  0.441  1.0
  O  O18  1  0.059  0.261  0.910  1.0
  O  O19  1  0.243  0.441  0.589  1.0
  O  O20  1  0.390  0.180  0.994  1.0
  O  O21  1  0.441  0.589  0.243  1.0
  O  O22  1  0.744  0.086  0.940  1.0
  O  O23  1  0.994  0.390  0.180  1.0
  O  O24  1  0.011  0.613  0.813  1.0
  O  O25  1  0.261  0.910  0.059  1.0
  O  O26  1  0.562  0.407  0.755  1.0
  O  O27  1  0.613  0.813  0.011  1.0
  O  O28  1  0.755  0.562  0.407  1.0
  O  O29  1  0.940  0.744  0.086  1.0
  O  O30  1  0.407  0.755  0.562  1.0
  O  O31  1  0.180  0.994  0.390  1.0
  O  O32  1  0.086  0.940  0.744  1.0
  O  O33  1  0.311  0.111  0.509  1.0
  O  O34  1  0.509  0.311  0.111  1.0
  O  O35  1  0.111  0.509  0.311  1.0
[/CIF]
.
The material described by Fe3Co2Sb(PO4)6 crystallizes in the trigonal R3 space group. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to three equivalent O(4) and three equivalent O(8) atoms to form FeO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  a faceface with one Co(2)O6 octahedra. In the second Fe site, Fe(2) is bonded to three equivalent O(2) and three equivalent O(5) atoms to form distorted FeO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  a faceface with one Co(1)O6 octahedra. In the third Fe site, Fe(3) is bonded to three equivalent O(1) and three equivalent O(7) atoms to form FeO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  a faceface with one Co(2)O6 octahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to three equivalent O(2) and three equivalent O(6) atoms to form distorted CoO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra,  a faceface with one Fe(2)O6 octahedra, and  a faceface with one Sb(1)O6 octahedra. In the second Co site, Co(2) is bonded to three equivalent O(4) and three equivalent O(7) atoms to form distorted CoO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra,  a faceface with one Fe(1)O6 octahedra, and  a faceface with one Fe(3)O6 octahedra. Sb(1) is bonded to three equivalent O(3) and three equivalent O(6) atoms to form SbO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra, and  a faceface with one Co(1)O6 octahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra, and  a cornercorner with one Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-51°. In the second P site, P(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra, and  a cornercorner with one Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-49°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Fe(3) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Fe(2), one Co(1), and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Sb(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Fe(1), one Co(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Fe(2) and one P(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Co(1), one Sb(1), and one P(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Fe(3), one Co(2), and one P(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Fe(1) and one P(2) atom. is represented by the CIF file [CIF]
data_Fe3Co2Sb(PO4)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.558
_cell_length_b   8.558
_cell_length_c   8.558
_cell_angle_alpha   60.914
_cell_angle_beta   60.914
_cell_angle_gamma   60.914
_symmetry_Int_Tables_number   1
_cell_volume   452.257
_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
  Fe  Fe0  1  0.355  0.355  0.355  1.0
  Fe  Fe1  1  0.145  0.145  0.145  1.0
  Fe  Fe2  1  0.643  0.643  0.643  1.0
  Co  Co3  1  0.007  0.007  0.007  1.0
  Co  Co4  1  0.499  0.499  0.499  1.0
  Sb  Sb5  1  0.857  0.857  0.857  1.0
  P  P6  1  0.746  0.047  0.452  1.0
  P  P7  1  0.047  0.452  0.746  1.0
  P  P8  1  0.452  0.746  0.047  1.0
  P  P9  1  0.541  0.252  0.953  1.0
  P  P10  1  0.953  0.541  0.252  1.0
  P  P11  1  0.252  0.953  0.541  1.0
  O  O12  1  0.888  0.501  0.682  1.0
  O  O13  1  0.501  0.682  0.888  1.0
  O  O14  1  0.682  0.888  0.501  1.0
  O  O15  1  0.910  0.059  0.261  1.0
  O  O16  1  0.813  0.011  0.613  1.0
  O  O17  1  0.589  0.243  0.441  1.0
  O  O18  1  0.059  0.261  0.910  1.0
  O  O19  1  0.243  0.441  0.589  1.0
  O  O20  1  0.390  0.180  0.994  1.0
  O  O21  1  0.441  0.589  0.243  1.0
  O  O22  1  0.744  0.086  0.940  1.0
  O  O23  1  0.994  0.390  0.180  1.0
  O  O24  1  0.011  0.613  0.813  1.0
  O  O25  1  0.261  0.910  0.059  1.0
  O  O26  1  0.562  0.407  0.755  1.0
  O  O27  1  0.613  0.813  0.011  1.0
  O  O28  1  0.755  0.562  0.407  1.0
  O  O29  1  0.940  0.744  0.086  1.0
  O  O30  1  0.407  0.755  0.562  1.0
  O  O31  1  0.180  0.994  0.390  1.0
  O  O32  1  0.086  0.940  0.744  1.0
  O  O33  1  0.311  0.111  0.509  1.0
  O  O34  1  0.509  0.311  0.111  1.0
  O  O35  1  0.111  0.509  0.311  1.0
[/CIF]
.