The compound described by Fe2Co3Sb3O16 is Rutile-derived structured and crystallizes in the monoclinic Cm space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra, corners with four equivalent Co(2)O6 octahedra,  an edgeedge with one Co(1)O6 octahedra, and edges with two equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-56°. In the second Fe site, Fe(2) is bonded to one O(12), one O(7), two equivalent O(11), and two equivalent O(9) atoms to form FeO6 octahedra that share corners with two equivalent Co(1)O6 octahedra, corners with four equivalent Sb(1)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra, and edges with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(3), one O(4), two equivalent O(11), and two equivalent O(6) atoms to form CoO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra, and edges with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles are 50°. In the second Co site, Co(2) is bonded to one O(1), one O(10), one O(12), one O(5), one O(8), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, edges with two equivalent Co(2)O6 octahedra, and edges with two equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-54°. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(11), one O(2), one O(3), one O(4), one O(6), and one O(7) atom to form SbO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, and edges with two equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the second Sb site, Sb(2) is bonded to one O(10), one O(5), two equivalent O(1), and two equivalent O(9) atoms to form SbO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and edges with four equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles are 56°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Fe(1), one Co(2), and one Sb(2) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Fe(1) and two equivalent Sb(1) atoms. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Co(1) and two equivalent Sb(1) atoms. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Co(1) and two equivalent Sb(1) atoms. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Co(2) and one Sb(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Fe(1), one Co(1), and one Sb(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Fe(2) and two equivalent Sb(1) atoms. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Fe(1) and two equivalent Co(2) atoms. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one Fe(2), one Co(2), and one Sb(2) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to two equivalent Co(2) and one Sb(2) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Fe(2), one Co(1), and one Sb(1) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal non-coplanar geometry to one Fe(2) and two equivalent Co(2) atoms. is represented by the CIF card [CIF]
data_Fe2Co3Sb3O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.938
_cell_length_b   5.938
_cell_length_c   9.023
_cell_angle_alpha   89.116
_cell_angle_beta   89.116
_cell_angle_gamma   60.813
_symmetry_Int_Tables_number   1
_cell_volume   277.661
_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  0.674  0.674  0.497  1.0
  Fe  Fe1  1  0.342  0.342  0.980  1.0
  Co  Co2  1  0.832  0.832  0.203  1.0
  Co  Co3  1  0.665  0.165  0.712  1.0
  Co  Co4  1  0.165  0.665  0.712  1.0
  Sb  Sb5  1  0.829  0.334  0.211  1.0
  Sb  Sb6  1  0.334  0.829  0.211  1.0
  Sb  Sb7  1  0.165  0.165  0.713  1.0
  O  O8  1  0.827  0.325  0.605  1.0
  O  O9  1  0.513  0.513  0.344  1.0
  O  O10  1  0.674  0.674  0.092  1.0
  O  O11  1  0.989  0.989  0.318  1.0
  O  O12  1  0.990  0.990  0.820  1.0
  O  O13  1  0.325  0.827  0.605  1.0
  O  O14  1  0.958  0.516  0.340  1.0
  O  O15  1  0.516  0.958  0.340  1.0
  O  O16  1  0.169  0.169  0.096  1.0
  O  O17  1  0.840  0.840  0.615  1.0
  O  O18  1  0.487  0.049  0.840  1.0
  O  O19  1  0.049  0.487  0.840  1.0
  O  O20  1  0.340  0.340  0.602  1.0
  O  O21  1  0.666  0.173  0.096  1.0
  O  O22  1  0.477  0.477  0.826  1.0
  O  O23  1  0.173  0.666  0.096  1.0
[/CIF]
.
The compound described by Fe2Co3Sb3O16 is Rutile-derived structured and crystallizes in the monoclinic Cm space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra, corners with four equivalent Co(2)O6 octahedra,  an edgeedge with one Co(1)O6 octahedra, and edges with two equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-56°. In the second Fe site, Fe(2) is bonded to one O(12), one O(7), two equivalent O(11), and two equivalent O(9) atoms to form FeO6 octahedra that share corners with two equivalent Co(1)O6 octahedra, corners with four equivalent Sb(1)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra, and edges with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(3), one O(4), two equivalent O(11), and two equivalent O(6) atoms to form CoO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra, and edges with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles are 50°. In the second Co site, Co(2) is bonded to one O(1), one O(10), one O(12), one O(5), one O(8), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, edges with two equivalent Co(2)O6 octahedra, and edges with two equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-54°. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(11), one O(2), one O(3), one O(4), one O(6), and one O(7) atom to form SbO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, and edges with two equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the second Sb site, Sb(2) is bonded to one O(10), one O(5), two equivalent O(1), and two equivalent O(9) atoms to form SbO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and edges with four equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles are 56°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Fe(1), one Co(2), and one Sb(2) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Fe(1) and two equivalent Sb(1) atoms. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Co(1) and two equivalent Sb(1) atoms. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Co(1) and two equivalent Sb(1) atoms. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Co(2) and one Sb(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Fe(1), one Co(1), and one Sb(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Fe(2) and two equivalent Sb(1) atoms. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Fe(1) and two equivalent Co(2) atoms. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one Fe(2), one Co(2), and one Sb(2) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to two equivalent Co(2) and one Sb(2) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Fe(2), one Co(1), and one Sb(1) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal non-coplanar geometry to one Fe(2) and two equivalent Co(2) atoms. is represented by the CIF card [CIF]
data_Fe2Co3Sb3O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.938
_cell_length_b   5.938
_cell_length_c   9.023
_cell_angle_alpha   89.116
_cell_angle_beta   89.116
_cell_angle_gamma   60.813
_symmetry_Int_Tables_number   1
_cell_volume   277.661
_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  0.674  0.674  0.497  1.0
  Fe  Fe1  1  0.342  0.342  0.980  1.0
  Co  Co2  1  0.832  0.832  0.203  1.0
  Co  Co3  1  0.665  0.165  0.712  1.0
  Co  Co4  1  0.165  0.665  0.712  1.0
  Sb  Sb5  1  0.829  0.334  0.211  1.0
  Sb  Sb6  1  0.334  0.829  0.211  1.0
  Sb  Sb7  1  0.165  0.165  0.713  1.0
  O  O8  1  0.827  0.325  0.605  1.0
  O  O9  1  0.513  0.513  0.344  1.0
  O  O10  1  0.674  0.674  0.092  1.0
  O  O11  1  0.989  0.989  0.318  1.0
  O  O12  1  0.990  0.990  0.820  1.0
  O  O13  1  0.325  0.827  0.605  1.0
  O  O14  1  0.958  0.516  0.340  1.0
  O  O15  1  0.516  0.958  0.340  1.0
  O  O16  1  0.169  0.169  0.096  1.0
  O  O17  1  0.840  0.840  0.615  1.0
  O  O18  1  0.487  0.049  0.840  1.0
  O  O19  1  0.049  0.487  0.840  1.0
  O  O20  1  0.340  0.340  0.602  1.0
  O  O21  1  0.666  0.173  0.096  1.0
  O  O22  1  0.477  0.477  0.826  1.0
  O  O23  1  0.173  0.666  0.096  1.0
[/CIF]
.