The compound described by Co19Te34 crystallizes in the triclinic P-1 space group. There are ten inequivalent Co sites. In the first Co site, Co(1) is bonded to one Te(10), one Te(12), one Te(2), one Te(4), one Te(5), and one Te(7) atom to form a mixture of corner and edge-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. In the second Co site, Co(2) is bonded to one Te(10), one Te(2), one Te(6), one Te(8), and two equivalent Te(4) atoms to form a mixture of corner and edge-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the third Co site, Co(3) is bonded to one Te(2), one Te(3), one Te(5), one Te(8), and two equivalent Te(1) atoms to form a mixture of corner and edge-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the fourth Co site, Co(4) is bonded to one Te(1), one Te(12), one Te(14), one Te(3), one Te(5), and one Te(9) atom to form a mixture of distorted face and edge-sharing CoTe6 octahedra. In the fifth Co site, Co(5) is bonded to one Te(11), one Te(14), one Te(16), one Te(3), one Te(6), and one Te(8) atom to form a mixture of corner and edge-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the sixth Co site, Co(6) is bonded to one Te(10), one Te(13), one Te(16), one Te(17), one Te(6), and one Te(7) atom to form a mixture of distorted face and edge-sharing CoTe6 octahedra. In the seventh Co site, Co(7) is bonded to one Te(12), one Te(17), one Te(7), one Te(9), and two equivalent Te(15) atoms to form a mixture of corner and edge-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the eighth Co site, Co(8) is bonded to one Te(11), one Te(13), one Te(14), one Te(15), one Te(17), and one Te(9) atom to form a mixture of corner and edge-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the ninth Co site, Co(9) is bonded to two equivalent Te(11), two equivalent Te(13), and two equivalent Te(16) atoms to form a mixture of corner and edge-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the tenth Co site, Co(10) is bonded to one Te(1), one Te(12), one Te(13), one Te(14), one Te(6), and one Te(7) atom to form a mixture of distorted face and corner-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. There are seventeen inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted rectangular see-saw-like geometry to one Co(10), one Co(4), and two equivalent Co(3) atoms. In the second Te site, Te(2) is bonded in a 3-coordinate geometry to one Co(1), one Co(2), and one Co(3) atom. In the third Te site, Te(3) is bonded in a 3-coordinate geometry to one Co(3), one Co(4), and one Co(5) atom. In the fourth Te site, Te(4) is bonded in a distorted T-shaped geometry to one Co(1) and two equivalent Co(2) atoms. In the fifth Te site, Te(5) is bonded in a 3-coordinate geometry to one Co(1), one Co(3), and one Co(4) atom. In the sixth Te site, Te(6) is bonded in a distorted rectangular see-saw-like geometry to one Co(10), one Co(2), one Co(5), and one Co(6) atom. In the seventh Te site, Te(7) is bonded to one Co(1), one Co(10), one Co(6), and one Co(7) atom to form a mixture of distorted corner and edge-sharing TeCo4 trigonal pyramids. In the eighth Te site, Te(8) is bonded in a distorted T-shaped geometry to one Co(2), one Co(3), and one Co(5) atom. In the ninth Te site, Te(9) is bonded in a distorted T-shaped geometry to one Co(4), one Co(7), and one Co(8) atom. In the tenth Te site, Te(10) is bonded in a distorted T-shaped geometry to one Co(1), one Co(2), and one Co(6) atom. In the eleventh Te site, Te(11) is bonded in a 3-coordinate geometry to one Co(5), one Co(8), and one Co(9) atom. In the twelfth Te site, Te(12) is bonded to one Co(1), one Co(10), one Co(4), and one Co(7) atom to form a mixture of distorted corner and edge-sharing TeCo4 trigonal pyramids. In the thirteenth Te site, Te(13) is bonded to one Co(10), one Co(6), one Co(8), and one Co(9) atom to form a mixture of distorted corner and edge-sharing TeCo4 trigonal pyramids. In the fourteenth Te site, Te(14) is bonded to one Co(10), one Co(4), one Co(5), and one Co(8) atom to form a mixture of distorted corner and edge-sharing TeCo4 trigonal pyramids. In the fifteenth Te site, Te(15) is bonded in a distorted T-shaped geometry to one Co(8) and two equivalent Co(7) atoms. In the sixteenth Te site, Te(16) is bonded in a 3-coordinate geometry to one Co(5), one Co(6), and one Co(9) atom. In the seventeenth Te site, Te(17) is bonded in a distorted T-shaped geometry to one Co(6), one Co(7), and one Co(8) atom. is represented by the CIF file [CIF]
data_Co19Te34
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.521
_cell_length_b   9.382
_cell_length_c   14.826
_cell_angle_alpha   89.989
_cell_angle_beta   93.527
_cell_angle_gamma   99.978
_symmetry_Int_Tables_number   1
_cell_volume   1165.062
_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
  Co  Co0  1  0.911  0.234  0.145  1.0
  Co  Co1  1  0.146  0.943  0.088  1.0
  Co  Co2  1  0.381  0.649  0.030  1.0
  Co  Co3  1  0.619  0.351  0.970  1.0
  Co  Co4  1  0.854  0.057  0.912  1.0
  Co  Co5  1  0.089  0.766  0.855  1.0
  Co  Co6  1  0.321  0.467  0.795  1.0
  Co  Co7  1  0.559  0.177  0.736  1.0
  Co  Co8  1  0.797  0.886  0.676  1.0
  Co  Co9  1  0.029  0.587  0.616  1.0
  Co  Co10  1  0.262  0.298  0.558  1.0
  Co  Co11  1  0.500  0.000  0.500  1.0
  Co  Co12  1  0.559  0.677  0.736  1.0
  Co  Co13  1  0.738  0.702  0.442  1.0
  Co  Co14  1  0.971  0.413  0.384  1.0
  Co  Co15  1  0.203  0.114  0.324  1.0
  Co  Co16  1  0.441  0.823  0.264  1.0
  Co  Co17  1  0.679  0.533  0.205  1.0
  Co  Co18  1  0.441  0.323  0.264  1.0
  Te  Te19  1  0.449  0.413  0.096  1.0
  Te  Te20  1  0.683  0.117  0.038  1.0
  Te  Te21  1  0.612  0.769  0.137  1.0
  Te  Te22  1  0.918  0.823  0.979  1.0
  Te  Te23  1  0.850  0.471  0.078  1.0
  Te  Te24  1  0.150  0.529  0.922  1.0
  Te  Te25  1  0.082  0.177  0.021  1.0
  Te  Te26  1  0.388  0.231  0.863  1.0
  Te  Te27  1  0.317  0.883  0.962  1.0
  Te  Te28  1  0.625  0.943  0.803  1.0
  Te  Te29  1  0.551  0.587  0.904  1.0
  Te  Te30  1  0.861  0.648  0.744  1.0
  Te  Te31  1  0.788  0.295  0.844  1.0
  Te  Te32  1  0.091  0.350  0.684  1.0
  Te  Te33  1  0.027  0.002  0.786  1.0
  Te  Te34  1  0.329  0.058  0.626  1.0
  Te  Te35  1  0.257  0.705  0.727  1.0
  Te  Te36  1  0.567  0.766  0.566  1.0
  Te  Te37  1  0.492  0.410  0.668  1.0
  Te  Te38  1  0.799  0.469  0.509  1.0
  Te  Te39  1  0.729  0.121  0.609  1.0
  Te  Te40  1  0.033  0.176  0.451  1.0
  Te  Te41  1  0.967  0.824  0.549  1.0
  Te  Te42  1  0.271  0.879  0.391  1.0
  Te  Te43  1  0.201  0.531  0.491  1.0
  Te  Te44  1  0.508  0.590  0.332  1.0
  Te  Te45  1  0.433  0.234  0.434  1.0
  Te  Te46  1  0.743  0.295  0.273  1.0
  Te  Te47  1  0.671  0.942  0.374  1.0
  Te  Te48  1  0.973  0.998  0.214  1.0
  Te  Te49  1  0.909  0.650  0.316  1.0
  Te  Te50  1  0.212  0.705  0.156  1.0
  Te  Te51  1  0.139  0.352  0.256  1.0
  Te  Te52  1  0.375  0.057  0.197  1.0
[/CIF]
.
The compound described by Co19Te34 crystallizes in the triclinic P-1 space group. There are ten inequivalent Co sites. In the first Co site, Co(1) is bonded to one Te(10), one Te(12), one Te(2), one Te(4), one Te(5), and one Te(7) atom to form a mixture of corner and edge-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. In the second Co site, Co(2) is bonded to one Te(10), one Te(2), one Te(6), one Te(8), and two equivalent Te(4) atoms to form a mixture of corner and edge-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the third Co site, Co(3) is bonded to one Te(2), one Te(3), one Te(5), one Te(8), and two equivalent Te(1) atoms to form a mixture of corner and edge-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the fourth Co site, Co(4) is bonded to one Te(1), one Te(12), one Te(14), one Te(3), one Te(5), and one Te(9) atom to form a mixture of distorted face and edge-sharing CoTe6 octahedra. In the fifth Co site, Co(5) is bonded to one Te(11), one Te(14), one Te(16), one Te(3), one Te(6), and one Te(8) atom to form a mixture of corner and edge-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the sixth Co site, Co(6) is bonded to one Te(10), one Te(13), one Te(16), one Te(17), one Te(6), and one Te(7) atom to form a mixture of distorted face and edge-sharing CoTe6 octahedra. In the seventh Co site, Co(7) is bonded to one Te(12), one Te(17), one Te(7), one Te(9), and two equivalent Te(15) atoms to form a mixture of corner and edge-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the eighth Co site, Co(8) is bonded to one Te(11), one Te(13), one Te(14), one Te(15), one Te(17), and one Te(9) atom to form a mixture of corner and edge-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the ninth Co site, Co(9) is bonded to two equivalent Te(11), two equivalent Te(13), and two equivalent Te(16) atoms to form a mixture of corner and edge-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the tenth Co site, Co(10) is bonded to one Te(1), one Te(12), one Te(13), one Te(14), one Te(6), and one Te(7) atom to form a mixture of distorted face and corner-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. There are seventeen inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted rectangular see-saw-like geometry to one Co(10), one Co(4), and two equivalent Co(3) atoms. In the second Te site, Te(2) is bonded in a 3-coordinate geometry to one Co(1), one Co(2), and one Co(3) atom. In the third Te site, Te(3) is bonded in a 3-coordinate geometry to one Co(3), one Co(4), and one Co(5) atom. In the fourth Te site, Te(4) is bonded in a distorted T-shaped geometry to one Co(1) and two equivalent Co(2) atoms. In the fifth Te site, Te(5) is bonded in a 3-coordinate geometry to one Co(1), one Co(3), and one Co(4) atom. In the sixth Te site, Te(6) is bonded in a distorted rectangular see-saw-like geometry to one Co(10), one Co(2), one Co(5), and one Co(6) atom. In the seventh Te site, Te(7) is bonded to one Co(1), one Co(10), one Co(6), and one Co(7) atom to form a mixture of distorted corner and edge-sharing TeCo4 trigonal pyramids. In the eighth Te site, Te(8) is bonded in a distorted T-shaped geometry to one Co(2), one Co(3), and one Co(5) atom. In the ninth Te site, Te(9) is bonded in a distorted T-shaped geometry to one Co(4), one Co(7), and one Co(8) atom. In the tenth Te site, Te(10) is bonded in a distorted T-shaped geometry to one Co(1), one Co(2), and one Co(6) atom. In the eleventh Te site, Te(11) is bonded in a 3-coordinate geometry to one Co(5), one Co(8), and one Co(9) atom. In the twelfth Te site, Te(12) is bonded to one Co(1), one Co(10), one Co(4), and one Co(7) atom to form a mixture of distorted corner and edge-sharing TeCo4 trigonal pyramids. In the thirteenth Te site, Te(13) is bonded to one Co(10), one Co(6), one Co(8), and one Co(9) atom to form a mixture of distorted corner and edge-sharing TeCo4 trigonal pyramids. In the fourteenth Te site, Te(14) is bonded to one Co(10), one Co(4), one Co(5), and one Co(8) atom to form a mixture of distorted corner and edge-sharing TeCo4 trigonal pyramids. In the fifteenth Te site, Te(15) is bonded in a distorted T-shaped geometry to one Co(8) and two equivalent Co(7) atoms. In the sixteenth Te site, Te(16) is bonded in a 3-coordinate geometry to one Co(5), one Co(6), and one Co(9) atom. In the seventeenth Te site, Te(17) is bonded in a distorted T-shaped geometry to one Co(6), one Co(7), and one Co(8) atom. is represented by the CIF file [CIF]
data_Co19Te34
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.521
_cell_length_b   9.382
_cell_length_c   14.826
_cell_angle_alpha   89.989
_cell_angle_beta   93.527
_cell_angle_gamma   99.978
_symmetry_Int_Tables_number   1
_cell_volume   1165.062
_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
  Co  Co0  1  0.911  0.234  0.145  1.0
  Co  Co1  1  0.146  0.943  0.088  1.0
  Co  Co2  1  0.381  0.649  0.030  1.0
  Co  Co3  1  0.619  0.351  0.970  1.0
  Co  Co4  1  0.854  0.057  0.912  1.0
  Co  Co5  1  0.089  0.766  0.855  1.0
  Co  Co6  1  0.321  0.467  0.795  1.0
  Co  Co7  1  0.559  0.177  0.736  1.0
  Co  Co8  1  0.797  0.886  0.676  1.0
  Co  Co9  1  0.029  0.587  0.616  1.0
  Co  Co10  1  0.262  0.298  0.558  1.0
  Co  Co11  1  0.500  0.000  0.500  1.0
  Co  Co12  1  0.559  0.677  0.736  1.0
  Co  Co13  1  0.738  0.702  0.442  1.0
  Co  Co14  1  0.971  0.413  0.384  1.0
  Co  Co15  1  0.203  0.114  0.324  1.0
  Co  Co16  1  0.441  0.823  0.264  1.0
  Co  Co17  1  0.679  0.533  0.205  1.0
  Co  Co18  1  0.441  0.323  0.264  1.0
  Te  Te19  1  0.449  0.413  0.096  1.0
  Te  Te20  1  0.683  0.117  0.038  1.0
  Te  Te21  1  0.612  0.769  0.137  1.0
  Te  Te22  1  0.918  0.823  0.979  1.0
  Te  Te23  1  0.850  0.471  0.078  1.0
  Te  Te24  1  0.150  0.529  0.922  1.0
  Te  Te25  1  0.082  0.177  0.021  1.0
  Te  Te26  1  0.388  0.231  0.863  1.0
  Te  Te27  1  0.317  0.883  0.962  1.0
  Te  Te28  1  0.625  0.943  0.803  1.0
  Te  Te29  1  0.551  0.587  0.904  1.0
  Te  Te30  1  0.861  0.648  0.744  1.0
  Te  Te31  1  0.788  0.295  0.844  1.0
  Te  Te32  1  0.091  0.350  0.684  1.0
  Te  Te33  1  0.027  0.002  0.786  1.0
  Te  Te34  1  0.329  0.058  0.626  1.0
  Te  Te35  1  0.257  0.705  0.727  1.0
  Te  Te36  1  0.567  0.766  0.566  1.0
  Te  Te37  1  0.492  0.410  0.668  1.0
  Te  Te38  1  0.799  0.469  0.509  1.0
  Te  Te39  1  0.729  0.121  0.609  1.0
  Te  Te40  1  0.033  0.176  0.451  1.0
  Te  Te41  1  0.967  0.824  0.549  1.0
  Te  Te42  1  0.271  0.879  0.391  1.0
  Te  Te43  1  0.201  0.531  0.491  1.0
  Te  Te44  1  0.508  0.590  0.332  1.0
  Te  Te45  1  0.433  0.234  0.434  1.0
  Te  Te46  1  0.743  0.295  0.273  1.0
  Te  Te47  1  0.671  0.942  0.374  1.0
  Te  Te48  1  0.973  0.998  0.214  1.0
  Te  Te49  1  0.909  0.650  0.316  1.0
  Te  Te50  1  0.212  0.705  0.156  1.0
  Te  Te51  1  0.139  0.352  0.256  1.0
  Te  Te52  1  0.375  0.057  0.197  1.0
[/CIF]
.