The compound described by Yb8Tl3 crystallizes in the triclinic P-1 space group. There are eight inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 4-coordinate geometry to one Tl(3), one Tl(4), and two equivalent Tl(2) atoms. In the second Yb site, Yb(2) is bonded in a 4-coordinate geometry to one Tl(2), one Tl(3), and two equivalent Tl(1) atoms. In the third Yb site, Yb(3) is bonded in a 3-coordinate geometry to one Tl(1) and two equivalent Tl(2) atoms. In the fourth Yb site, Yb(4) is bonded in a 3-coordinate geometry to one Tl(3), one Tl(4), and two equivalent Tl(1) atoms. In the fifth Yb site, Yb(5) is bonded in a distorted trigonal non-coplanar geometry to one Tl(1), one Tl(2), and one Tl(4) atom. In the sixth Yb site, Yb(6) is bonded in a 4-coordinate geometry to one Tl(2), one Tl(3), and two equivalent Tl(1) atoms. In the seventh Yb site, Yb(7) is bonded in a distorted trigonal non-coplanar geometry to one Tl(1), one Tl(2), and one Tl(4) atom. In the eighth Yb site, Yb(8) is bonded in a 4-coordinate geometry to one Tl(1), one Tl(4), and two equivalent Tl(2) atoms. There are four inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 10-coordinate geometry to one Yb(3), one Yb(5), one Yb(7), one Yb(8), two equivalent Yb(2), two equivalent Yb(4), and two equivalent Yb(6) atoms. In the second Tl site, Tl(2) is bonded in a 10-coordinate geometry to one Yb(2), one Yb(5), one Yb(6), one Yb(7), two equivalent Yb(1), two equivalent Yb(3), and two equivalent Yb(8) atoms. In the third Tl site, Tl(3) is bonded in a body-centered cubic geometry to two equivalent Yb(1), two equivalent Yb(2), two equivalent Yb(4), and two equivalent Yb(6) atoms. In the fourth Tl site, Tl(4) is bonded in a distorted q6 geometry to two equivalent Yb(1), two equivalent Yb(4), two equivalent Yb(5), two equivalent Yb(7), and two equivalent Yb(8) atoms. is represented by the CIF file [CIF]
data_Yb8Tl3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.351
_cell_length_b   9.368
_cell_length_c   9.423
_cell_angle_alpha   99.015
_cell_angle_beta   100.912
_cell_angle_gamma   119.877
_symmetry_Int_Tables_number   1
_cell_volume   671.576
_cell_formula_units_Z   2
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
  Yb  Yb0  1  0.121  0.100  0.356  1.0
  Yb  Yb1  1  0.296  0.002  0.884  1.0
  Yb  Yb2  1  0.962  0.561  0.671  1.0
  Yb  Yb3  1  0.331  0.380  0.113  1.0
  Yb  Yb4  1  0.534  0.201  0.290  1.0
  Yb  Yb5  1  0.669  0.620  0.887  1.0
  Yb  Yb6  1  0.879  0.900  0.644  1.0
  Yb  Yb7  1  0.921  0.268  0.892  1.0
  Yb  Yb8  1  0.230  0.350  0.705  1.0
  Yb  Yb9  1  0.038  0.439  0.329  1.0
  Yb  Yb10  1  0.466  0.799  0.710  1.0
  Yb  Yb11  1  0.770  0.650  0.295  1.0
  Yb  Yb12  1  0.534  0.203  0.647  1.0
  Yb  Yb13  1  0.079  0.732  0.108  1.0
  Yb  Yb14  1  0.466  0.797  0.353  1.0
  Yb  Yb15  1  0.704  0.998  0.116  1.0
  Tl  Tl16  1  0.675  0.336  0.022  1.0
  Tl  Tl17  1  0.827  0.165  0.500  1.0
  Tl  Tl18  1  0.325  0.664  0.978  1.0
  Tl  Tl19  1  0.000  0.000  0.000  1.0
  Tl  Tl20  1  0.173  0.835  0.500  1.0
  Tl  Tl21  1  0.500  0.500  0.500  1.0
[/CIF]
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The compound described by Yb8Tl3 crystallizes in the triclinic P-1 space group. There are eight inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 4-coordinate geometry to one Tl(3), one Tl(4), and two equivalent Tl(2) atoms. In the second Yb site, Yb(2) is bonded in a 4-coordinate geometry to one Tl(2), one Tl(3), and two equivalent Tl(1) atoms. In the third Yb site, Yb(3) is bonded in a 3-coordinate geometry to one Tl(1) and two equivalent Tl(2) atoms. In the fourth Yb site, Yb(4) is bonded in a 3-coordinate geometry to one Tl(3), one Tl(4), and two equivalent Tl(1) atoms. In the fifth Yb site, Yb(5) is bonded in a distorted trigonal non-coplanar geometry to one Tl(1), one Tl(2), and one Tl(4) atom. In the sixth Yb site, Yb(6) is bonded in a 4-coordinate geometry to one Tl(2), one Tl(3), and two equivalent Tl(1) atoms. In the seventh Yb site, Yb(7) is bonded in a distorted trigonal non-coplanar geometry to one Tl(1), one Tl(2), and one Tl(4) atom. In the eighth Yb site, Yb(8) is bonded in a 4-coordinate geometry to one Tl(1), one Tl(4), and two equivalent Tl(2) atoms. There are four inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 10-coordinate geometry to one Yb(3), one Yb(5), one Yb(7), one Yb(8), two equivalent Yb(2), two equivalent Yb(4), and two equivalent Yb(6) atoms. In the second Tl site, Tl(2) is bonded in a 10-coordinate geometry to one Yb(2), one Yb(5), one Yb(6), one Yb(7), two equivalent Yb(1), two equivalent Yb(3), and two equivalent Yb(8) atoms. In the third Tl site, Tl(3) is bonded in a body-centered cubic geometry to two equivalent Yb(1), two equivalent Yb(2), two equivalent Yb(4), and two equivalent Yb(6) atoms. In the fourth Tl site, Tl(4) is bonded in a distorted q6 geometry to two equivalent Yb(1), two equivalent Yb(4), two equivalent Yb(5), two equivalent Yb(7), and two equivalent Yb(8) atoms. is represented by the CIF file [CIF]
data_Yb8Tl3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.351
_cell_length_b   9.368
_cell_length_c   9.423
_cell_angle_alpha   99.015
_cell_angle_beta   100.912
_cell_angle_gamma   119.877
_symmetry_Int_Tables_number   1
_cell_volume   671.576
_cell_formula_units_Z   2
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
  Yb  Yb0  1  0.121  0.100  0.356  1.0
  Yb  Yb1  1  0.296  0.002  0.884  1.0
  Yb  Yb2  1  0.962  0.561  0.671  1.0
  Yb  Yb3  1  0.331  0.380  0.113  1.0
  Yb  Yb4  1  0.534  0.201  0.290  1.0
  Yb  Yb5  1  0.669  0.620  0.887  1.0
  Yb  Yb6  1  0.879  0.900  0.644  1.0
  Yb  Yb7  1  0.921  0.268  0.892  1.0
  Yb  Yb8  1  0.230  0.350  0.705  1.0
  Yb  Yb9  1  0.038  0.439  0.329  1.0
  Yb  Yb10  1  0.466  0.799  0.710  1.0
  Yb  Yb11  1  0.770  0.650  0.295  1.0
  Yb  Yb12  1  0.534  0.203  0.647  1.0
  Yb  Yb13  1  0.079  0.732  0.108  1.0
  Yb  Yb14  1  0.466  0.797  0.353  1.0
  Yb  Yb15  1  0.704  0.998  0.116  1.0
  Tl  Tl16  1  0.675  0.336  0.022  1.0
  Tl  Tl17  1  0.827  0.165  0.500  1.0
  Tl  Tl18  1  0.325  0.664  0.978  1.0
  Tl  Tl19  1  0.000  0.000  0.000  1.0
  Tl  Tl20  1  0.173  0.835  0.500  1.0
  Tl  Tl21  1  0.500  0.500  0.500  1.0
[/CIF]
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