The material described by Yb11Sb10 crystallizes in the monoclinic C2/m space group. There are seven inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 7-coordinate geometry to one Sb(2), one Sb(3), one Sb(4), one Sb(5), one Sb(6), and two equivalent Sb(8) atoms. In the second Yb site, Yb(2) is bonded in a 7-coordinate geometry to one Sb(1), one Sb(3), one Sb(4), one Sb(5), one Sb(6), and two equivalent Sb(8) atoms. In the third Yb site, Yb(3) is bonded in a 9-coordinate geometry to one Sb(1), one Sb(2), one Sb(7), two equivalent Sb(3), two equivalent Sb(5), and two equivalent Sb(6) atoms. In the fourth Yb site, Yb(4) is bonded in a 7-coordinate geometry to one Sb(1), one Sb(2), one Sb(5), two equivalent Sb(7), and two equivalent Sb(8) atoms. In the fifth Yb site, Yb(5) is bonded in a 7-coordinate geometry to one Sb(6), two equivalent Sb(3), two equivalent Sb(7), and two equivalent Sb(8) atoms. In the sixth Yb site, Yb(6) is bonded to one Sb(4), one Sb(7), one Sb(8), two equivalent Sb(1), and two equivalent Sb(3) atoms to form a mixture of distorted edge, face, and corner-sharing YbSb7 pentagonal bipyramids. In the seventh Yb site, Yb(7) is bonded to one Sb(4), one Sb(7), one Sb(8), two equivalent Sb(2), and two equivalent Sb(3) atoms to form a mixture of distorted edge, face, and corner-sharing YbSb7 pentagonal bipyramids. There are eight inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 10-coordinate geometry to one Yb(3), one Yb(4), two equivalent Yb(2), four equivalent Yb(6), one Sb(1), and one Sb(5) atom. In the second Sb site, Sb(2) is bonded in a 10-coordinate geometry to one Yb(3), one Yb(4), two equivalent Yb(1), four equivalent Yb(7), one Sb(2), and one Sb(5) atom. In the third Sb site, Sb(3) is bonded in a 10-coordinate geometry to one Yb(1), one Yb(2), one Yb(3), one Yb(5), two equivalent Yb(6), two equivalent Yb(7), one Sb(3), and one Sb(6) atom. In the fourth Sb site, Sb(4) is bonded in a 8-coordinate geometry to two equivalent Yb(1), two equivalent Yb(2), two equivalent Yb(6), and two equivalent Yb(7) atoms. In the fifth Sb site, Sb(5) is bonded in a 11-coordinate geometry to one Yb(4), two equivalent Yb(1), two equivalent Yb(2), two equivalent Yb(3), one Sb(1), one Sb(2), and two equivalent Sb(6) atoms. In the sixth Sb site, Sb(6) is bonded in a 11-coordinate geometry to one Yb(5), two equivalent Yb(1), two equivalent Yb(2), two equivalent Yb(3), two equivalent Sb(3), and two equivalent Sb(5) atoms. In the seventh Sb site, Sb(7) is bonded in a 9-coordinate geometry to one Yb(3), two equivalent Yb(4), two equivalent Yb(5), two equivalent Yb(6), and two equivalent Yb(7) atoms. In the eighth Sb site, Sb(8) is bonded in a 8-coordinate geometry to one Yb(4), one Yb(5), one Yb(6), one Yb(7), two equivalent Yb(1), and two equivalent Yb(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Yb11Sb10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.879
_cell_length_b   11.879
_cell_length_c   11.990
_cell_angle_alpha   119.687
_cell_angle_beta   119.687
_cell_angle_gamma   90.047
_symmetry_Int_Tables_number   1
_cell_volume   1207.047
_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  0.264  0.603  0.205  1.0
  Yb  Yb1  1  0.397  0.058  0.794  1.0
  Yb  Yb2  1  0.942  0.603  0.206  1.0
  Yb  Yb3  1  0.603  0.942  0.206  1.0
  Yb  Yb4  1  0.603  0.264  0.205  1.0
  Yb  Yb5  1  0.736  0.397  0.795  1.0
  Yb  Yb6  1  0.058  0.397  0.794  1.0
  Yb  Yb7  1  0.397  0.736  0.795  1.0
  Yb  Yb8  1  0.665  0.665  0.329  1.0
  Yb  Yb9  1  0.335  0.335  0.671  1.0
  Yb  Yb10  1  0.834  0.834  1.000  1.0
  Yb  Yb11  1  0.166  0.834  0.000  1.0
  Yb  Yb12  1  0.834  0.166  0.000  1.0
  Yb  Yb13  1  0.166  0.166  0.000  1.0
  Yb  Yb14  1  0.189  0.937  0.378  1.0
  Yb  Yb15  1  0.559  0.811  0.622  1.0
  Yb  Yb16  1  0.063  0.811  0.622  1.0
  Yb  Yb17  1  0.811  0.063  0.622  1.0
  Yb  Yb18  1  0.811  0.559  0.622  1.0
  Yb  Yb19  1  0.441  0.189  0.378  1.0
  Yb  Yb20  1  0.937  0.189  0.378  1.0
  Yb  Yb21  1  0.189  0.441  0.378  1.0
  Sb  Sb22  1  0.118  0.118  0.649  1.0
  Sb  Sb23  1  0.469  0.469  0.351  1.0
  Sb  Sb24  1  0.882  0.882  0.351  1.0
  Sb  Sb25  1  0.469  0.882  0.352  1.0
  Sb  Sb26  1  0.882  0.469  0.352  1.0
  Sb  Sb27  1  0.531  0.118  0.648  1.0
  Sb  Sb28  1  0.118  0.531  0.648  1.0
  Sb  Sb29  1  0.531  0.531  0.649  1.0
  Sb  Sb30  1  0.750  0.250  0.500  1.0
  Sb  Sb31  1  0.250  0.750  0.500  1.0
  Sb  Sb32  1  0.628  0.628  0.000  1.0
  Sb  Sb33  1  0.374  0.626  0.000  1.0
  Sb  Sb34  1  0.626  0.374  0.000  1.0
  Sb  Sb35  1  0.372  0.372  1.000  1.0
  Sb  Sb36  1  0.873  0.873  0.745  1.0
  Sb  Sb37  1  0.127  0.127  0.255  1.0
  Sb  Sb38  1  0.652  1.000  0.000  1.0
  Sb  Sb39  1  1.000  0.652  0.000  1.0
  Sb  Sb40  1  0.000  0.348  1.000  1.0
  Sb  Sb41  1  0.348  0.000  1.000  1.0
[/CIF]
.
The material described by Yb11Sb10 crystallizes in the monoclinic C2/m space group. There are seven inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 7-coordinate geometry to one Sb(2), one Sb(3), one Sb(4), one Sb(5), one Sb(6), and two equivalent Sb(8) atoms. In the second Yb site, Yb(2) is bonded in a 7-coordinate geometry to one Sb(1), one Sb(3), one Sb(4), one Sb(5), one Sb(6), and two equivalent Sb(8) atoms. In the third Yb site, Yb(3) is bonded in a 9-coordinate geometry to one Sb(1), one Sb(2), one Sb(7), two equivalent Sb(3), two equivalent Sb(5), and two equivalent Sb(6) atoms. In the fourth Yb site, Yb(4) is bonded in a 7-coordinate geometry to one Sb(1), one Sb(2), one Sb(5), two equivalent Sb(7), and two equivalent Sb(8) atoms. In the fifth Yb site, Yb(5) is bonded in a 7-coordinate geometry to one Sb(6), two equivalent Sb(3), two equivalent Sb(7), and two equivalent Sb(8) atoms. In the sixth Yb site, Yb(6) is bonded to one Sb(4), one Sb(7), one Sb(8), two equivalent Sb(1), and two equivalent Sb(3) atoms to form a mixture of distorted edge, face, and corner-sharing YbSb7 pentagonal bipyramids. In the seventh Yb site, Yb(7) is bonded to one Sb(4), one Sb(7), one Sb(8), two equivalent Sb(2), and two equivalent Sb(3) atoms to form a mixture of distorted edge, face, and corner-sharing YbSb7 pentagonal bipyramids. There are eight inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 10-coordinate geometry to one Yb(3), one Yb(4), two equivalent Yb(2), four equivalent Yb(6), one Sb(1), and one Sb(5) atom. In the second Sb site, Sb(2) is bonded in a 10-coordinate geometry to one Yb(3), one Yb(4), two equivalent Yb(1), four equivalent Yb(7), one Sb(2), and one Sb(5) atom. In the third Sb site, Sb(3) is bonded in a 10-coordinate geometry to one Yb(1), one Yb(2), one Yb(3), one Yb(5), two equivalent Yb(6), two equivalent Yb(7), one Sb(3), and one Sb(6) atom. In the fourth Sb site, Sb(4) is bonded in a 8-coordinate geometry to two equivalent Yb(1), two equivalent Yb(2), two equivalent Yb(6), and two equivalent Yb(7) atoms. In the fifth Sb site, Sb(5) is bonded in a 11-coordinate geometry to one Yb(4), two equivalent Yb(1), two equivalent Yb(2), two equivalent Yb(3), one Sb(1), one Sb(2), and two equivalent Sb(6) atoms. In the sixth Sb site, Sb(6) is bonded in a 11-coordinate geometry to one Yb(5), two equivalent Yb(1), two equivalent Yb(2), two equivalent Yb(3), two equivalent Sb(3), and two equivalent Sb(5) atoms. In the seventh Sb site, Sb(7) is bonded in a 9-coordinate geometry to one Yb(3), two equivalent Yb(4), two equivalent Yb(5), two equivalent Yb(6), and two equivalent Yb(7) atoms. In the eighth Sb site, Sb(8) is bonded in a 8-coordinate geometry to one Yb(4), one Yb(5), one Yb(6), one Yb(7), two equivalent Yb(1), and two equivalent Yb(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Yb11Sb10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.879
_cell_length_b   11.879
_cell_length_c   11.990
_cell_angle_alpha   119.687
_cell_angle_beta   119.687
_cell_angle_gamma   90.047
_symmetry_Int_Tables_number   1
_cell_volume   1207.047
_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  0.264  0.603  0.205  1.0
  Yb  Yb1  1  0.397  0.058  0.794  1.0
  Yb  Yb2  1  0.942  0.603  0.206  1.0
  Yb  Yb3  1  0.603  0.942  0.206  1.0
  Yb  Yb4  1  0.603  0.264  0.205  1.0
  Yb  Yb5  1  0.736  0.397  0.795  1.0
  Yb  Yb6  1  0.058  0.397  0.794  1.0
  Yb  Yb7  1  0.397  0.736  0.795  1.0
  Yb  Yb8  1  0.665  0.665  0.329  1.0
  Yb  Yb9  1  0.335  0.335  0.671  1.0
  Yb  Yb10  1  0.834  0.834  1.000  1.0
  Yb  Yb11  1  0.166  0.834  0.000  1.0
  Yb  Yb12  1  0.834  0.166  0.000  1.0
  Yb  Yb13  1  0.166  0.166  0.000  1.0
  Yb  Yb14  1  0.189  0.937  0.378  1.0
  Yb  Yb15  1  0.559  0.811  0.622  1.0
  Yb  Yb16  1  0.063  0.811  0.622  1.0
  Yb  Yb17  1  0.811  0.063  0.622  1.0
  Yb  Yb18  1  0.811  0.559  0.622  1.0
  Yb  Yb19  1  0.441  0.189  0.378  1.0
  Yb  Yb20  1  0.937  0.189  0.378  1.0
  Yb  Yb21  1  0.189  0.441  0.378  1.0
  Sb  Sb22  1  0.118  0.118  0.649  1.0
  Sb  Sb23  1  0.469  0.469  0.351  1.0
  Sb  Sb24  1  0.882  0.882  0.351  1.0
  Sb  Sb25  1  0.469  0.882  0.352  1.0
  Sb  Sb26  1  0.882  0.469  0.352  1.0
  Sb  Sb27  1  0.531  0.118  0.648  1.0
  Sb  Sb28  1  0.118  0.531  0.648  1.0
  Sb  Sb29  1  0.531  0.531  0.649  1.0
  Sb  Sb30  1  0.750  0.250  0.500  1.0
  Sb  Sb31  1  0.250  0.750  0.500  1.0
  Sb  Sb32  1  0.628  0.628  0.000  1.0
  Sb  Sb33  1  0.374  0.626  0.000  1.0
  Sb  Sb34  1  0.626  0.374  0.000  1.0
  Sb  Sb35  1  0.372  0.372  1.000  1.0
  Sb  Sb36  1  0.873  0.873  0.745  1.0
  Sb  Sb37  1  0.127  0.127  0.255  1.0
  Sb  Sb38  1  0.652  1.000  0.000  1.0
  Sb  Sb39  1  1.000  0.652  0.000  1.0
  Sb  Sb40  1  0.000  0.348  1.000  1.0
  Sb  Sb41  1  0.348  0.000  1.000  1.0
[/CIF]
.