The material structure described by MgFe3Co2Sb(PO4)6 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(15), one O(17), one O(19), one O(2), and one O(3) atom to form distorted MgO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra, and  a faceface with one Co(2)O6 octahedra. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(22), one O(23), one O(24), one O(6), and one O(8) atom to form distorted FeO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra, and  a faceface with one Co(2)O6 octahedra. In the second Fe site, Fe(2) is bonded to one O(12), one O(14), one O(20), one O(4), one O(7), and one O(9) atom to form distorted FeO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. In the third Fe site, Fe(3) is bonded in a 6-coordinate geometry to one O(1), one O(13), one O(16), one O(2), one O(3), and one O(5) atom. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 6-coordinate geometry to one O(11), one O(14), one O(18), one O(21), one O(4), and one O(7) atom. In the second Co site, Co(2) is bonded to one O(10), one O(15), one O(17), one O(19), one O(6), and one O(8) atom to form distorted CoO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra,  a faceface with one Mg(1)O6 octahedra, and  a faceface with one Fe(1)O6 octahedra. Sb(1) is bonded to one O(11), one O(13), one O(16), one O(18), one O(21), and one O(5) atom to form SbO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. There are six inequivalent P sites. In the first P site, P(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)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 11-54°. In the second P site, P(2) is bonded to one O(1), one O(13), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)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 13-53°. In the third P site, P(3) is bonded to one O(10), one O(14), one O(16), and one O(2) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)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 11-54°. In the fourth P site, P(4) is bonded to one O(11), one O(15), one O(23), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)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 30-50°. In the fifth P site, P(5) is bonded to one O(12), one O(17), one O(18), and one O(24) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)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 30-50°. In the sixth P site, P(6) is bonded to one O(19), one O(20), one O(21), and one O(22) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)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 32-51°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one Fe(3), and one P(2) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Mg(1), one Fe(3), and one P(3) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Mg(1), one Fe(3), and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Fe(2), one Co(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Fe(3), one Sb(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Fe(1), one Co(2), and one P(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Fe(2), one Co(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Fe(1), one Co(2), and one P(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Fe(2) and one P(4) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Fe(1), one Co(2), and one P(3) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Co(1), one Sb(1), and one P(4) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Fe(2) and one P(5) atom. In the thirteenth O site, O(13) is bonded in a distorted T-shaped geometry to one Fe(3), one Sb(1), and one P(2) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Fe(2), one Co(1), and one P(3) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Mg(1), one Co(2), and one P(4) atom. In the sixteenth O site, O(16) is bonded in a distorted T-shaped geometry to one Fe(3), one Sb(1), and one P(3) atom. In the seventeenth O site, O(17) is bonded in a 3-coordinate geometry to one Mg(1), one Co(2), and one P(5) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one Co(1), one Sb(1), and one P(5) atom. In the nineteenth O site, O(19) is bonded in a 3-coordinate geometry to one Mg(1), one Co(2), and one P(6) atom. In the twentieth O site, O(20) is bonded in a bent 150 degrees geometry to one Fe(2) and one P(6) atom. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one Co(1), one Sb(1), and one P(6) atom. In the twenty-second O site, O(22) is bonded in a bent 150 degrees geometry to one Fe(1) and one P(6) atom. In the twenty-third O site, O(23) is bonded in a bent 150 degrees geometry to one Fe(1) and one P(4) atom. In the twenty-fourth O site, O(24) is bonded in a bent 150 degrees geometry to one Fe(1) and one P(5) atom. is represented by the CIF file [CIF]
data_MgFe3Co2Sb(PO4)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.740
_cell_length_b   8.791
_cell_length_c   8.772
_cell_angle_alpha   59.906
_cell_angle_beta   60.053
_cell_angle_gamma   60.327
_symmetry_Int_Tables_number   1
_cell_volume   477.573
_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  0.863  0.384  0.377  1.0
  Fe  Fe1  1  0.044  0.653  0.655  1.0
  Fe  Fe2  1  0.435  0.854  0.855  1.0
  Fe  Fe3  1  0.215  0.259  0.262  1.0
  Co  Co4  1  0.019  0.997  0.991  1.0
  Co  Co5  1  0.470  0.508  0.512  1.0
  Sb  Sb6  1  0.586  0.138  0.138  1.0
  P  P7  1  0.236  0.255  0.559  1.0
  P  P8  1  0.236  0.948  0.255  1.0
  P  P9  1  0.236  0.560  0.951  1.0
  P  P10  1  0.733  0.466  0.051  1.0
  P  P11  1  0.733  0.053  0.748  1.0
  P  P12  1  0.727  0.750  0.470  1.0
  O  O13  1  0.067  0.113  0.309  1.0
  O  O14  1  0.066  0.507  0.116  1.0
  O  O15  1  0.066  0.313  0.506  1.0
  O  O16  1  0.223  0.090  0.746  1.0
  O  O17  1  0.411  0.192  0.386  1.0
  O  O18  1  0.268  0.406  0.566  1.0
  O  O19  1  0.227  0.936  0.089  1.0
  O  O20  1  0.263  0.761  0.411  1.0
  O  O21  1  0.564  0.606  0.989  1.0
  O  O22  1  0.266  0.565  0.762  1.0
  O  O23  1  0.765  0.259  0.063  1.0
  O  O24  1  0.562  0.992  0.838  1.0
  O  O25  1  0.413  0.008  0.192  1.0
  O  O26  1  0.226  0.745  0.942  1.0
  O  O27  1  0.691  0.448  0.250  1.0
  O  O28  1  0.411  0.385  0.012  1.0
  O  O29  1  0.691  0.253  0.609  1.0
  O  O30  1  0.765  0.063  0.914  1.0
  O  O31  1  0.685  0.612  0.448  1.0
  O  O32  1  0.553  0.841  0.606  1.0
  O  O33  1  0.763  0.914  0.261  1.0
  O  O34  1  0.907  0.678  0.502  1.0
  O  O35  1  0.917  0.493  0.910  1.0
  O  O36  1  0.916  0.915  0.678  1.0
[/CIF]
.
The material structure described by MgFe3Co2Sb(PO4)6 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(15), one O(17), one O(19), one O(2), and one O(3) atom to form distorted MgO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra, and  a faceface with one Co(2)O6 octahedra. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(22), one O(23), one O(24), one O(6), and one O(8) atom to form distorted FeO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra, and  a faceface with one Co(2)O6 octahedra. In the second Fe site, Fe(2) is bonded to one O(12), one O(14), one O(20), one O(4), one O(7), and one O(9) atom to form distorted FeO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. In the third Fe site, Fe(3) is bonded in a 6-coordinate geometry to one O(1), one O(13), one O(16), one O(2), one O(3), and one O(5) atom. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 6-coordinate geometry to one O(11), one O(14), one O(18), one O(21), one O(4), and one O(7) atom. In the second Co site, Co(2) is bonded to one O(10), one O(15), one O(17), one O(19), one O(6), and one O(8) atom to form distorted CoO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra,  a faceface with one Mg(1)O6 octahedra, and  a faceface with one Fe(1)O6 octahedra. Sb(1) is bonded to one O(11), one O(13), one O(16), one O(18), one O(21), and one O(5) atom to form SbO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. There are six inequivalent P sites. In the first P site, P(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)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 11-54°. In the second P site, P(2) is bonded to one O(1), one O(13), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)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 13-53°. In the third P site, P(3) is bonded to one O(10), one O(14), one O(16), and one O(2) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)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 11-54°. In the fourth P site, P(4) is bonded to one O(11), one O(15), one O(23), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)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 30-50°. In the fifth P site, P(5) is bonded to one O(12), one O(17), one O(18), and one O(24) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)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 30-50°. In the sixth P site, P(6) is bonded to one O(19), one O(20), one O(21), and one O(22) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)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 32-51°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one Fe(3), and one P(2) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Mg(1), one Fe(3), and one P(3) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Mg(1), one Fe(3), and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Fe(2), one Co(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Fe(3), one Sb(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Fe(1), one Co(2), and one P(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Fe(2), one Co(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Fe(1), one Co(2), and one P(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Fe(2) and one P(4) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Fe(1), one Co(2), and one P(3) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Co(1), one Sb(1), and one P(4) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Fe(2) and one P(5) atom. In the thirteenth O site, O(13) is bonded in a distorted T-shaped geometry to one Fe(3), one Sb(1), and one P(2) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Fe(2), one Co(1), and one P(3) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Mg(1), one Co(2), and one P(4) atom. In the sixteenth O site, O(16) is bonded in a distorted T-shaped geometry to one Fe(3), one Sb(1), and one P(3) atom. In the seventeenth O site, O(17) is bonded in a 3-coordinate geometry to one Mg(1), one Co(2), and one P(5) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one Co(1), one Sb(1), and one P(5) atom. In the nineteenth O site, O(19) is bonded in a 3-coordinate geometry to one Mg(1), one Co(2), and one P(6) atom. In the twentieth O site, O(20) is bonded in a bent 150 degrees geometry to one Fe(2) and one P(6) atom. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one Co(1), one Sb(1), and one P(6) atom. In the twenty-second O site, O(22) is bonded in a bent 150 degrees geometry to one Fe(1) and one P(6) atom. In the twenty-third O site, O(23) is bonded in a bent 150 degrees geometry to one Fe(1) and one P(4) atom. In the twenty-fourth O site, O(24) is bonded in a bent 150 degrees geometry to one Fe(1) and one P(5) atom. is represented by the CIF file [CIF]
data_MgFe3Co2Sb(PO4)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.740
_cell_length_b   8.791
_cell_length_c   8.772
_cell_angle_alpha   59.906
_cell_angle_beta   60.053
_cell_angle_gamma   60.327
_symmetry_Int_Tables_number   1
_cell_volume   477.573
_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  0.863  0.384  0.377  1.0
  Fe  Fe1  1  0.044  0.653  0.655  1.0
  Fe  Fe2  1  0.435  0.854  0.855  1.0
  Fe  Fe3  1  0.215  0.259  0.262  1.0
  Co  Co4  1  0.019  0.997  0.991  1.0
  Co  Co5  1  0.470  0.508  0.512  1.0
  Sb  Sb6  1  0.586  0.138  0.138  1.0
  P  P7  1  0.236  0.255  0.559  1.0
  P  P8  1  0.236  0.948  0.255  1.0
  P  P9  1  0.236  0.560  0.951  1.0
  P  P10  1  0.733  0.466  0.051  1.0
  P  P11  1  0.733  0.053  0.748  1.0
  P  P12  1  0.727  0.750  0.470  1.0
  O  O13  1  0.067  0.113  0.309  1.0
  O  O14  1  0.066  0.507  0.116  1.0
  O  O15  1  0.066  0.313  0.506  1.0
  O  O16  1  0.223  0.090  0.746  1.0
  O  O17  1  0.411  0.192  0.386  1.0
  O  O18  1  0.268  0.406  0.566  1.0
  O  O19  1  0.227  0.936  0.089  1.0
  O  O20  1  0.263  0.761  0.411  1.0
  O  O21  1  0.564  0.606  0.989  1.0
  O  O22  1  0.266  0.565  0.762  1.0
  O  O23  1  0.765  0.259  0.063  1.0
  O  O24  1  0.562  0.992  0.838  1.0
  O  O25  1  0.413  0.008  0.192  1.0
  O  O26  1  0.226  0.745  0.942  1.0
  O  O27  1  0.691  0.448  0.250  1.0
  O  O28  1  0.411  0.385  0.012  1.0
  O  O29  1  0.691  0.253  0.609  1.0
  O  O30  1  0.765  0.063  0.914  1.0
  O  O31  1  0.685  0.612  0.448  1.0
  O  O32  1  0.553  0.841  0.606  1.0
  O  O33  1  0.763  0.914  0.261  1.0
  O  O34  1  0.907  0.678  0.502  1.0
  O  O35  1  0.917  0.493  0.910  1.0
  O  O36  1  0.916  0.915  0.678  1.0
[/CIF]
.