The structure described by MgCo4(Te2O5)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 5-coordinate geometry to one O(10), one O(13), one O(14), one O(16), and one O(2) atom. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(17), one O(19), one O(20), one O(3), one O(4), and one O(5) atom to form distorted edge-sharing CoO6 octahedra. In the second Co site, Co(2) is bonded to one O(18), one O(19), one O(20), one O(3), one O(4), and one O(6) atom to form edge-sharing CoO6 octahedra. In the third Co site, Co(3) is bonded in a 6-coordinate geometry to one O(10), one O(13), one O(14), one O(16), one O(8), and one O(9) atom. In the fourth Co site, Co(4) is bonded in a distorted octahedral geometry to one O(10), one O(13), one O(14), one O(15), one O(7), and one O(9) atom. There are eight inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted see-saw-like geometry to one O(1), one O(5), one O(7), and one O(9) atom. In the second Te site, Te(2) is bonded in a 4-coordinate geometry to one O(10), one O(2), one O(6), and one O(8) atom. In the third Te site, Te(3) is bonded in a 4-coordinate geometry to one O(12), one O(3), one O(5), and one O(7) atom. In the fourth Te site, Te(4) is bonded in a 5-coordinate geometry to one O(11), one O(12), one O(4), one O(6), and one O(8) atom. In the fifth Te site, Te(5) is bonded in a 4-coordinate geometry to one O(12), one O(15), one O(17), and one O(19) atom. In the sixth Te site, Te(6) is bonded in a distorted water-like geometry to one O(11) and one O(20) atom. In the seventh Te site, Te(7) is bonded in a distorted rectangular see-saw-like geometry to one O(14), one O(16), one O(18), and one O(2) atom. In the eighth Te site, Te(8) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(13), one O(15), and one O(17) atom. There are twenty inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Te(1) and one Te(8) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Te(2), and one Te(7) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one Te(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Co(1), one Co(2), and one Te(4) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Co(1), one Te(1), and one Te(3) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Co(2), one Te(2), and one Te(4) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Co(4), one Te(1), and one Te(3) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Co(3), one Te(2), and one Te(4) atom. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one Co(3), one Co(4), and one Te(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Mg(1), one Co(3), one Co(4), and one Te(2) atom. In the eleventh O site, O(11) is bonded in a distorted bent 120 degrees geometry to one Te(4) and one Te(6) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Te(3), one Te(4), and one Te(5) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Mg(1), one Co(3), one Co(4), and one Te(8) atom. In the fourteenth O site, O(14) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Co(3), one Co(4), and one Te(7) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Co(4), one Te(5), and one Te(8) atom. In the sixteenth O site, O(16) is bonded in a T-shaped geometry to one Mg(1), one Co(3), and one Te(7) atom. In the seventeenth O site, O(17) is bonded in a 3-coordinate geometry to one Co(1), one Te(5), and one Te(8) atom. In the eighteenth O site, O(18) is bonded in a distorted bent 120 degrees geometry to one Co(2) and one Te(7) atom. In the nineteenth O site, O(19) is bonded in a distorted trigonal non-coplanar geometry to one Co(1), one Co(2), and one Te(5) atom. In the twentieth O site, O(20) is bonded in a trigonal non-coplanar geometry to one Co(1), one Co(2), and one Te(6) atom. is represented by the CIF file [CIF]
data_MgCo4(Te2O5)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.218
_cell_length_b   10.999
_cell_length_c   6.313
_cell_angle_alpha   93.506
_cell_angle_beta   89.919
_cell_angle_gamma   88.667
_symmetry_Int_Tables_number   1
_cell_volume   500.082
_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  0.683  0.615  0.941  1.0
  Co  Co1  1  0.012  0.052  0.238  1.0
  Co  Co2  1  0.996  0.936  0.729  1.0
  Co  Co3  1  0.498  0.555  0.323  1.0
  Co  Co4  1  0.479  0.422  0.764  1.0
  Te  Te5  1  0.129  0.337  0.471  1.0
  Te  Te6  1  0.151  0.673  0.001  1.0
  Te  Te7  1  0.370  0.148  0.940  1.0
  Te  Te8  1  0.380  0.853  0.503  1.0
  Te  Te9  1  0.632  0.159  0.471  1.0
  Te  Te10  1  0.614  0.888  0.992  1.0
  Te  Te11  1  0.866  0.654  0.501  1.0
  Te  Te12  1  0.880  0.341  0.997  1.0
  O  O13  1  0.015  0.429  0.236  1.0
  O  O14  1  0.963  0.582  0.840  1.0
  O  O15  1  0.152  0.058  0.931  1.0
  O  O16  1  0.147  0.927  0.445  1.0
  O  O17  1  0.204  0.197  0.304  1.0
  O  O18  1  0.196  0.792  0.802  1.0
  O  O19  1  0.276  0.293  0.815  1.0
  O  O20  1  0.336  0.705  0.342  1.0
  O  O21  1  0.353  0.426  0.466  1.0
  O  O22  1  0.373  0.574  0.946  1.0
  O  O23  1  0.508  0.943  0.277  1.0
  O  O24  1  0.456  0.079  0.658  1.0
  O  O25  1  0.656  0.438  0.042  1.0
  O  O26  1  0.654  0.571  0.615  1.0
  O  O27  1  0.676  0.289  0.682  1.0
  O  O28  1  0.717  0.664  0.248  1.0
  O  O29  1  0.820  0.208  0.160  1.0
  O  O30  1  0.799  0.808  0.639  1.0
  O  O31  1  0.852  0.070  0.525  1.0
  O  O32  1  0.871  0.928  0.044  1.0
[/CIF]
.
The structure described by MgCo4(Te2O5)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 5-coordinate geometry to one O(10), one O(13), one O(14), one O(16), and one O(2) atom. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(17), one O(19), one O(20), one O(3), one O(4), and one O(5) atom to form distorted edge-sharing CoO6 octahedra. In the second Co site, Co(2) is bonded to one O(18), one O(19), one O(20), one O(3), one O(4), and one O(6) atom to form edge-sharing CoO6 octahedra. In the third Co site, Co(3) is bonded in a 6-coordinate geometry to one O(10), one O(13), one O(14), one O(16), one O(8), and one O(9) atom. In the fourth Co site, Co(4) is bonded in a distorted octahedral geometry to one O(10), one O(13), one O(14), one O(15), one O(7), and one O(9) atom. There are eight inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted see-saw-like geometry to one O(1), one O(5), one O(7), and one O(9) atom. In the second Te site, Te(2) is bonded in a 4-coordinate geometry to one O(10), one O(2), one O(6), and one O(8) atom. In the third Te site, Te(3) is bonded in a 4-coordinate geometry to one O(12), one O(3), one O(5), and one O(7) atom. In the fourth Te site, Te(4) is bonded in a 5-coordinate geometry to one O(11), one O(12), one O(4), one O(6), and one O(8) atom. In the fifth Te site, Te(5) is bonded in a 4-coordinate geometry to one O(12), one O(15), one O(17), and one O(19) atom. In the sixth Te site, Te(6) is bonded in a distorted water-like geometry to one O(11) and one O(20) atom. In the seventh Te site, Te(7) is bonded in a distorted rectangular see-saw-like geometry to one O(14), one O(16), one O(18), and one O(2) atom. In the eighth Te site, Te(8) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(13), one O(15), and one O(17) atom. There are twenty inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Te(1) and one Te(8) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Te(2), and one Te(7) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one Te(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Co(1), one Co(2), and one Te(4) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Co(1), one Te(1), and one Te(3) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Co(2), one Te(2), and one Te(4) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Co(4), one Te(1), and one Te(3) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Co(3), one Te(2), and one Te(4) atom. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one Co(3), one Co(4), and one Te(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Mg(1), one Co(3), one Co(4), and one Te(2) atom. In the eleventh O site, O(11) is bonded in a distorted bent 120 degrees geometry to one Te(4) and one Te(6) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Te(3), one Te(4), and one Te(5) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Mg(1), one Co(3), one Co(4), and one Te(8) atom. In the fourteenth O site, O(14) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Co(3), one Co(4), and one Te(7) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Co(4), one Te(5), and one Te(8) atom. In the sixteenth O site, O(16) is bonded in a T-shaped geometry to one Mg(1), one Co(3), and one Te(7) atom. In the seventeenth O site, O(17) is bonded in a 3-coordinate geometry to one Co(1), one Te(5), and one Te(8) atom. In the eighteenth O site, O(18) is bonded in a distorted bent 120 degrees geometry to one Co(2) and one Te(7) atom. In the nineteenth O site, O(19) is bonded in a distorted trigonal non-coplanar geometry to one Co(1), one Co(2), and one Te(5) atom. In the twentieth O site, O(20) is bonded in a trigonal non-coplanar geometry to one Co(1), one Co(2), and one Te(6) atom. is represented by the CIF file [CIF]
data_MgCo4(Te2O5)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.218
_cell_length_b   10.999
_cell_length_c   6.313
_cell_angle_alpha   93.506
_cell_angle_beta   89.919
_cell_angle_gamma   88.667
_symmetry_Int_Tables_number   1
_cell_volume   500.082
_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  0.683  0.615  0.941  1.0
  Co  Co1  1  0.012  0.052  0.238  1.0
  Co  Co2  1  0.996  0.936  0.729  1.0
  Co  Co3  1  0.498  0.555  0.323  1.0
  Co  Co4  1  0.479  0.422  0.764  1.0
  Te  Te5  1  0.129  0.337  0.471  1.0
  Te  Te6  1  0.151  0.673  0.001  1.0
  Te  Te7  1  0.370  0.148  0.940  1.0
  Te  Te8  1  0.380  0.853  0.503  1.0
  Te  Te9  1  0.632  0.159  0.471  1.0
  Te  Te10  1  0.614  0.888  0.992  1.0
  Te  Te11  1  0.866  0.654  0.501  1.0
  Te  Te12  1  0.880  0.341  0.997  1.0
  O  O13  1  0.015  0.429  0.236  1.0
  O  O14  1  0.963  0.582  0.840  1.0
  O  O15  1  0.152  0.058  0.931  1.0
  O  O16  1  0.147  0.927  0.445  1.0
  O  O17  1  0.204  0.197  0.304  1.0
  O  O18  1  0.196  0.792  0.802  1.0
  O  O19  1  0.276  0.293  0.815  1.0
  O  O20  1  0.336  0.705  0.342  1.0
  O  O21  1  0.353  0.426  0.466  1.0
  O  O22  1  0.373  0.574  0.946  1.0
  O  O23  1  0.508  0.943  0.277  1.0
  O  O24  1  0.456  0.079  0.658  1.0
  O  O25  1  0.656  0.438  0.042  1.0
  O  O26  1  0.654  0.571  0.615  1.0
  O  O27  1  0.676  0.289  0.682  1.0
  O  O28  1  0.717  0.664  0.248  1.0
  O  O29  1  0.820  0.208  0.160  1.0
  O  O30  1  0.799  0.808  0.639  1.0
  O  O31  1  0.852  0.070  0.525  1.0
  O  O32  1  0.871  0.928  0.044  1.0
[/CIF]
.