The material described by Ho11Sn10 crystallizes in the tetragonal I4/mmm space group. There are four inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to one Sn(1), one Sn(2), one Sn(4), and four equivalent Sn(5) atoms to form a mixture of distorted edge, corner, and face-sharing HoSn7 pentagonal bipyramids. In the second Ho site, Ho(2) is bonded in a 7-coordinate geometry to one Sn(3), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(5) atoms. In the third Ho site, Ho(3) is bonded in a 9-coordinate geometry to one Sn(2), four equivalent Sn(3), and four equivalent Sn(5) atoms. In the fourth Ho site, Ho(4) is bonded in a 7-coordinate geometry to one Sn(4), two equivalent Sn(1), two equivalent Sn(3), and two equivalent Sn(5) atoms. There are five inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 8-coordinate geometry to two equivalent Ho(1), two equivalent Ho(2), and four equivalent Ho(4) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to one Ho(3), four equivalent Ho(1), and four equivalent Ho(2) atoms. In the third Sn site, Sn(3) is bonded in a 11-coordinate geometry to one Ho(2), two equivalent Ho(3), four equivalent Ho(4), two equivalent Sn(3), and two equivalent Sn(5) atoms. In the fourth Sn site, Sn(4) is bonded in a 8-coordinate geometry to four equivalent Ho(1) and four equivalent Ho(4) atoms. In the fifth Sn site, Sn(5) is bonded in a 10-coordinate geometry to one Ho(2), one Ho(3), two equivalent Ho(4), four equivalent Ho(1), one Sn(3), and one Sn(5) atom. is represented by the CIF card [CIF]
data_Ho11Sn10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.450
_cell_length_b   11.450
_cell_length_c   11.669
_cell_angle_alpha   119.378
_cell_angle_beta   119.377
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   1101.671
_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
  Ho  Ho0  1  0.938  0.189  0.378  1.0
  Ho  Ho1  1  0.440  0.189  0.378  1.0
  Ho  Ho2  1  0.189  0.440  0.378  1.0
  Ho  Ho3  1  0.189  0.938  0.378  1.0
  Ho  Ho4  1  0.062  0.811  0.622  1.0
  Ho  Ho5  1  0.560  0.811  0.622  1.0
  Ho  Ho6  1  0.811  0.560  0.622  1.0
  Ho  Ho7  1  0.811  0.062  0.622  1.0
  Ho  Ho8  1  0.826  0.174  1.000  1.0
  Ho  Ho9  1  0.174  0.826  0.000  1.0
  Ho  Ho10  1  0.174  0.174  0.000  1.0
  Ho  Ho11  1  0.826  0.826  1.000  1.0
  Ho  Ho12  1  0.334  0.334  0.668  1.0
  Ho  Ho13  1  0.666  0.666  0.332  1.0
  Ho  Ho14  1  0.067  0.398  0.796  1.0
  Ho  Ho15  1  0.729  0.398  0.796  1.0
  Ho  Ho16  1  0.398  0.729  0.796  1.0
  Ho  Ho17  1  0.398  0.067  0.796  1.0
  Ho  Ho18  1  0.933  0.602  0.204  1.0
  Ho  Ho19  1  0.271  0.602  0.204  1.0
  Ho  Ho20  1  0.602  0.271  0.204  1.0
  Ho  Ho21  1  0.602  0.933  0.204  1.0
  Sn  Sn22  1  1.000  0.355  1.000  1.0
  Sn  Sn23  1  0.000  0.645  0.000  1.0
  Sn  Sn24  1  0.355  1.000  1.000  1.0
  Sn  Sn25  1  0.645  0.000  0.000  1.0
  Sn  Sn26  1  0.113  0.113  0.226  1.0
  Sn  Sn27  1  0.887  0.887  0.774  1.0
  Sn  Sn28  1  0.630  0.370  0.000  1.0
  Sn  Sn29  1  0.370  0.630  1.000  1.0
  Sn  Sn30  1  0.370  0.370  1.000  1.0
  Sn  Sn31  1  0.630  0.630  0.000  1.0
  Sn  Sn32  1  0.750  0.250  0.500  1.0
  Sn  Sn33  1  0.250  0.750  0.500  1.0
  Sn  Sn34  1  0.118  0.530  0.648  1.0
  Sn  Sn35  1  0.530  0.118  0.649  1.0
  Sn  Sn36  1  0.530  0.530  0.649  1.0
  Sn  Sn37  1  0.118  0.118  0.648  1.0
  Sn  Sn38  1  0.882  0.470  0.352  1.0
  Sn  Sn39  1  0.470  0.882  0.351  1.0
  Sn  Sn40  1  0.470  0.470  0.351  1.0
  Sn  Sn41  1  0.882  0.882  0.352  1.0
[/CIF]
.
The material described by Ho11Sn10 crystallizes in the tetragonal I4/mmm space group. There are four inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to one Sn(1), one Sn(2), one Sn(4), and four equivalent Sn(5) atoms to form a mixture of distorted edge, corner, and face-sharing HoSn7 pentagonal bipyramids. In the second Ho site, Ho(2) is bonded in a 7-coordinate geometry to one Sn(3), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(5) atoms. In the third Ho site, Ho(3) is bonded in a 9-coordinate geometry to one Sn(2), four equivalent Sn(3), and four equivalent Sn(5) atoms. In the fourth Ho site, Ho(4) is bonded in a 7-coordinate geometry to one Sn(4), two equivalent Sn(1), two equivalent Sn(3), and two equivalent Sn(5) atoms. There are five inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 8-coordinate geometry to two equivalent Ho(1), two equivalent Ho(2), and four equivalent Ho(4) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to one Ho(3), four equivalent Ho(1), and four equivalent Ho(2) atoms. In the third Sn site, Sn(3) is bonded in a 11-coordinate geometry to one Ho(2), two equivalent Ho(3), four equivalent Ho(4), two equivalent Sn(3), and two equivalent Sn(5) atoms. In the fourth Sn site, Sn(4) is bonded in a 8-coordinate geometry to four equivalent Ho(1) and four equivalent Ho(4) atoms. In the fifth Sn site, Sn(5) is bonded in a 10-coordinate geometry to one Ho(2), one Ho(3), two equivalent Ho(4), four equivalent Ho(1), one Sn(3), and one Sn(5) atom. is represented by the CIF card [CIF]
data_Ho11Sn10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.450
_cell_length_b   11.450
_cell_length_c   11.669
_cell_angle_alpha   119.378
_cell_angle_beta   119.377
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   1101.671
_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
  Ho  Ho0  1  0.938  0.189  0.378  1.0
  Ho  Ho1  1  0.440  0.189  0.378  1.0
  Ho  Ho2  1  0.189  0.440  0.378  1.0
  Ho  Ho3  1  0.189  0.938  0.378  1.0
  Ho  Ho4  1  0.062  0.811  0.622  1.0
  Ho  Ho5  1  0.560  0.811  0.622  1.0
  Ho  Ho6  1  0.811  0.560  0.622  1.0
  Ho  Ho7  1  0.811  0.062  0.622  1.0
  Ho  Ho8  1  0.826  0.174  1.000  1.0
  Ho  Ho9  1  0.174  0.826  0.000  1.0
  Ho  Ho10  1  0.174  0.174  0.000  1.0
  Ho  Ho11  1  0.826  0.826  1.000  1.0
  Ho  Ho12  1  0.334  0.334  0.668  1.0
  Ho  Ho13  1  0.666  0.666  0.332  1.0
  Ho  Ho14  1  0.067  0.398  0.796  1.0
  Ho  Ho15  1  0.729  0.398  0.796  1.0
  Ho  Ho16  1  0.398  0.729  0.796  1.0
  Ho  Ho17  1  0.398  0.067  0.796  1.0
  Ho  Ho18  1  0.933  0.602  0.204  1.0
  Ho  Ho19  1  0.271  0.602  0.204  1.0
  Ho  Ho20  1  0.602  0.271  0.204  1.0
  Ho  Ho21  1  0.602  0.933  0.204  1.0
  Sn  Sn22  1  1.000  0.355  1.000  1.0
  Sn  Sn23  1  0.000  0.645  0.000  1.0
  Sn  Sn24  1  0.355  1.000  1.000  1.0
  Sn  Sn25  1  0.645  0.000  0.000  1.0
  Sn  Sn26  1  0.113  0.113  0.226  1.0
  Sn  Sn27  1  0.887  0.887  0.774  1.0
  Sn  Sn28  1  0.630  0.370  0.000  1.0
  Sn  Sn29  1  0.370  0.630  1.000  1.0
  Sn  Sn30  1  0.370  0.370  1.000  1.0
  Sn  Sn31  1  0.630  0.630  0.000  1.0
  Sn  Sn32  1  0.750  0.250  0.500  1.0
  Sn  Sn33  1  0.250  0.750  0.500  1.0
  Sn  Sn34  1  0.118  0.530  0.648  1.0
  Sn  Sn35  1  0.530  0.118  0.649  1.0
  Sn  Sn36  1  0.530  0.530  0.649  1.0
  Sn  Sn37  1  0.118  0.118  0.648  1.0
  Sn  Sn38  1  0.882  0.470  0.352  1.0
  Sn  Sn39  1  0.470  0.882  0.351  1.0
  Sn  Sn40  1  0.470  0.470  0.351  1.0
  Sn  Sn41  1  0.882  0.882  0.352  1.0
[/CIF]
.