The structure described by Y8Te3 crystallizes in the monoclinic C2/m space group. There are sixteen inequivalent Y sites. In the first Y site, Y(1) is bonded in a distorted linear geometry to one Te(1) and one Te(5) atom. In the second Y site, Y(2) is bonded in a distorted L-shaped geometry to one Te(4) and one Te(5) atom. In the third Y site, Y(3) is bonded in a 3-coordinate geometry to one Te(6) and two equivalent Te(2) atoms. In the fourth Y site, Y(4) is bonded in a 4-coordinate geometry to two equivalent Te(2) and two equivalent Te(4) atoms. In the fifth Y site, Y(5) is bonded in a 4-coordinate geometry to two equivalent Te(5) and two equivalent Te(6) atoms. In the sixth Y site, Y(6) is bonded in a 3-coordinate geometry to one Te(3) and two equivalent Te(2) atoms. In the seventh Y site, Y(7) is bonded in a distorted L-shaped geometry to two equivalent Te(1) atoms. In the eighth Y site, Y(8) is bonded in a distorted L-shaped geometry to one Te(3) and one Te(6) atom. In the ninth Y site, Y(9) is bonded in a 4-coordinate geometry to two equivalent Te(1) and two equivalent Te(6) atoms. In the tenth Y site, Y(10) is bonded in a 4-coordinate geometry to two equivalent Te(1) and two equivalent Te(5) atoms. In the eleventh Y site, Y(11) is bonded in a distorted single-bond geometry to one Te(2) atom. In the twelfth Y site, Y(12) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Te(4) and two equivalent Te(5) atoms. In the thirteenth Y site, Y(13) is bonded in a distorted single-bond geometry to one Te(1) atom. In the fourteenth Y site, Y(14) is bonded in a 4-coordinate geometry to two equivalent Te(3) and two equivalent Te(6) atoms. In the fifteenth Y site, Y(15) is bonded to one Te(2), one Te(4), and two equivalent Te(3) atoms to form distorted corner-sharing YTe4 trigonal pyramids. In the sixteenth Y site, Y(16) is bonded in a 3-coordinate geometry to one Te(4) and two equivalent Te(3) atoms. There are six inequivalent Te sites. In the first Te site, Te(1) is bonded in a 8-coordinate geometry to one Y(1), one Y(13), two equivalent Y(10), two equivalent Y(7), and two equivalent Y(9) atoms. In the second Te site, Te(2) is bonded in a 8-coordinate geometry to one Y(11), one Y(15), two equivalent Y(3), two equivalent Y(4), and two equivalent Y(6) atoms. In the third Te site, Te(3) is bonded in a 8-coordinate geometry to one Y(6), one Y(8), two equivalent Y(14), two equivalent Y(15), and two equivalent Y(16) atoms. In the fourth Te site, Te(4) is bonded to one Y(15), one Y(16), one Y(2), two equivalent Y(12), and two equivalent Y(4) atoms to form distorted edge-sharing TeY7 pentagonal bipyramids. In the fifth Te site, Te(5) is bonded in a 8-coordinate geometry to one Y(1), one Y(2), two equivalent Y(10), two equivalent Y(12), and two equivalent Y(5) atoms. In the sixth Te site, Te(6) is bonded in a 8-coordinate geometry to one Y(3), one Y(8), two equivalent Y(14), two equivalent Y(5), and two equivalent Y(9) atoms. is represented by the CIF card [CIF]
data_Y8Te3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   15.810
_cell_length_b   15.810
_cell_length_c   24.583
_cell_angle_alpha   57.499
_cell_angle_beta   57.499
_cell_angle_gamma   14.811
_symmetry_Int_Tables_number   1
_cell_volume   1320.262
_cell_formula_units_Z   4
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
  Y  Y0  1  0.489  0.489  0.432  1.0
  Y  Y1  1  0.511  0.511  0.568  1.0
  Y  Y2  1  0.666  0.666  0.155  1.0
  Y  Y3  1  0.334  0.334  0.845  1.0
  Y  Y4  1  0.792  0.792  0.133  1.0
  Y  Y5  1  0.208  0.208  0.867  1.0
  Y  Y6  1  0.126  0.126  0.068  1.0
  Y  Y7  1  0.874  0.874  0.932  1.0
  Y  Y8  1  0.803  0.803  0.751  1.0
  Y  Y9  1  0.197  0.197  0.249  1.0
  Y  Y10  1  0.935  0.935  0.056  1.0
  Y  Y11  1  0.065  0.065  0.944  1.0
  Y  Y12  1  0.908  0.908  0.411  1.0
  Y  Y13  1  0.092  0.092  0.589  1.0
  Y  Y14  1  0.829  0.829  0.341  1.0
  Y  Y15  1  0.171  0.171  0.659  1.0
  Y  Y16  1  0.780  0.780  0.605  1.0
  Y  Y17  1  0.220  0.220  0.395  1.0
  Y  Y18  1  0.920  0.920  0.573  1.0
  Y  Y19  1  0.080  0.080  0.427  1.0
  Y  Y20  1  0.265  0.265  0.039  1.0
  Y  Y21  1  0.735  0.735  0.961  1.0
  Y  Y22  1  0.954  0.954  0.720  1.0
  Y  Y23  1  0.046  0.046  0.280  1.0
  Y  Y24  1  0.701  0.701  0.529  1.0
  Y  Y25  1  0.299  0.299  0.471  1.0
  Y  Y26  1  0.349  0.349  0.199  1.0
  Y  Y27  1  0.651  0.651  0.801  1.0
  Y  Y28  1  0.509  0.509  0.090  1.0
  Y  Y29  1  0.491  0.491  0.910  1.0
  Y  Y30  1  0.440  0.440  0.282  1.0
  Y  Y31  1  0.560  0.560  0.718  1.0
  Te  Te32  1  0.630  0.630  0.472  1.0
  Te  Te33  1  0.370  0.370  0.528  1.0
  Te  Te34  1  0.372  0.372  0.031  1.0
  Te  Te35  1  0.628  0.628  0.969  1.0
  Te  Te36  1  0.928  0.928  0.192  1.0
  Te  Te37  1  0.072  0.072  0.808  1.0
  Te  Te38  1  0.555  0.555  0.177  1.0
  Te  Te39  1  0.445  0.445  0.823  1.0
  Te  Te40  1  0.606  0.606  0.314  1.0
  Te  Te41  1  0.394  0.394  0.686  1.0
  Te  Te42  1  0.759  0.759  0.280  1.0
  Te  Te43  1  0.241  0.241  0.720  1.0
[/CIF]
.
The structure described by Y8Te3 crystallizes in the monoclinic C2/m space group. There are sixteen inequivalent Y sites. In the first Y site, Y(1) is bonded in a distorted linear geometry to one Te(1) and one Te(5) atom. In the second Y site, Y(2) is bonded in a distorted L-shaped geometry to one Te(4) and one Te(5) atom. In the third Y site, Y(3) is bonded in a 3-coordinate geometry to one Te(6) and two equivalent Te(2) atoms. In the fourth Y site, Y(4) is bonded in a 4-coordinate geometry to two equivalent Te(2) and two equivalent Te(4) atoms. In the fifth Y site, Y(5) is bonded in a 4-coordinate geometry to two equivalent Te(5) and two equivalent Te(6) atoms. In the sixth Y site, Y(6) is bonded in a 3-coordinate geometry to one Te(3) and two equivalent Te(2) atoms. In the seventh Y site, Y(7) is bonded in a distorted L-shaped geometry to two equivalent Te(1) atoms. In the eighth Y site, Y(8) is bonded in a distorted L-shaped geometry to one Te(3) and one Te(6) atom. In the ninth Y site, Y(9) is bonded in a 4-coordinate geometry to two equivalent Te(1) and two equivalent Te(6) atoms. In the tenth Y site, Y(10) is bonded in a 4-coordinate geometry to two equivalent Te(1) and two equivalent Te(5) atoms. In the eleventh Y site, Y(11) is bonded in a distorted single-bond geometry to one Te(2) atom. In the twelfth Y site, Y(12) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Te(4) and two equivalent Te(5) atoms. In the thirteenth Y site, Y(13) is bonded in a distorted single-bond geometry to one Te(1) atom. In the fourteenth Y site, Y(14) is bonded in a 4-coordinate geometry to two equivalent Te(3) and two equivalent Te(6) atoms. In the fifteenth Y site, Y(15) is bonded to one Te(2), one Te(4), and two equivalent Te(3) atoms to form distorted corner-sharing YTe4 trigonal pyramids. In the sixteenth Y site, Y(16) is bonded in a 3-coordinate geometry to one Te(4) and two equivalent Te(3) atoms. There are six inequivalent Te sites. In the first Te site, Te(1) is bonded in a 8-coordinate geometry to one Y(1), one Y(13), two equivalent Y(10), two equivalent Y(7), and two equivalent Y(9) atoms. In the second Te site, Te(2) is bonded in a 8-coordinate geometry to one Y(11), one Y(15), two equivalent Y(3), two equivalent Y(4), and two equivalent Y(6) atoms. In the third Te site, Te(3) is bonded in a 8-coordinate geometry to one Y(6), one Y(8), two equivalent Y(14), two equivalent Y(15), and two equivalent Y(16) atoms. In the fourth Te site, Te(4) is bonded to one Y(15), one Y(16), one Y(2), two equivalent Y(12), and two equivalent Y(4) atoms to form distorted edge-sharing TeY7 pentagonal bipyramids. In the fifth Te site, Te(5) is bonded in a 8-coordinate geometry to one Y(1), one Y(2), two equivalent Y(10), two equivalent Y(12), and two equivalent Y(5) atoms. In the sixth Te site, Te(6) is bonded in a 8-coordinate geometry to one Y(3), one Y(8), two equivalent Y(14), two equivalent Y(5), and two equivalent Y(9) atoms. is represented by the CIF card [CIF]
data_Y8Te3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   15.810
_cell_length_b   15.810
_cell_length_c   24.583
_cell_angle_alpha   57.499
_cell_angle_beta   57.499
_cell_angle_gamma   14.811
_symmetry_Int_Tables_number   1
_cell_volume   1320.262
_cell_formula_units_Z   4
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
  Y  Y0  1  0.489  0.489  0.432  1.0
  Y  Y1  1  0.511  0.511  0.568  1.0
  Y  Y2  1  0.666  0.666  0.155  1.0
  Y  Y3  1  0.334  0.334  0.845  1.0
  Y  Y4  1  0.792  0.792  0.133  1.0
  Y  Y5  1  0.208  0.208  0.867  1.0
  Y  Y6  1  0.126  0.126  0.068  1.0
  Y  Y7  1  0.874  0.874  0.932  1.0
  Y  Y8  1  0.803  0.803  0.751  1.0
  Y  Y9  1  0.197  0.197  0.249  1.0
  Y  Y10  1  0.935  0.935  0.056  1.0
  Y  Y11  1  0.065  0.065  0.944  1.0
  Y  Y12  1  0.908  0.908  0.411  1.0
  Y  Y13  1  0.092  0.092  0.589  1.0
  Y  Y14  1  0.829  0.829  0.341  1.0
  Y  Y15  1  0.171  0.171  0.659  1.0
  Y  Y16  1  0.780  0.780  0.605  1.0
  Y  Y17  1  0.220  0.220  0.395  1.0
  Y  Y18  1  0.920  0.920  0.573  1.0
  Y  Y19  1  0.080  0.080  0.427  1.0
  Y  Y20  1  0.265  0.265  0.039  1.0
  Y  Y21  1  0.735  0.735  0.961  1.0
  Y  Y22  1  0.954  0.954  0.720  1.0
  Y  Y23  1  0.046  0.046  0.280  1.0
  Y  Y24  1  0.701  0.701  0.529  1.0
  Y  Y25  1  0.299  0.299  0.471  1.0
  Y  Y26  1  0.349  0.349  0.199  1.0
  Y  Y27  1  0.651  0.651  0.801  1.0
  Y  Y28  1  0.509  0.509  0.090  1.0
  Y  Y29  1  0.491  0.491  0.910  1.0
  Y  Y30  1  0.440  0.440  0.282  1.0
  Y  Y31  1  0.560  0.560  0.718  1.0
  Te  Te32  1  0.630  0.630  0.472  1.0
  Te  Te33  1  0.370  0.370  0.528  1.0
  Te  Te34  1  0.372  0.372  0.031  1.0
  Te  Te35  1  0.628  0.628  0.969  1.0
  Te  Te36  1  0.928  0.928  0.192  1.0
  Te  Te37  1  0.072  0.072  0.808  1.0
  Te  Te38  1  0.555  0.555  0.177  1.0
  Te  Te39  1  0.445  0.445  0.823  1.0
  Te  Te40  1  0.606  0.606  0.314  1.0
  Te  Te41  1  0.394  0.394  0.686  1.0
  Te  Te42  1  0.759  0.759  0.280  1.0
  Te  Te43  1  0.241  0.241  0.720  1.0
[/CIF]
.