The crystal structure described by Dy11Sn10 crystallizes in the tetragonal I4/mmm space group. There are four inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 7-coordinate geometry to one Sn(5), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(3) atoms. In the second Dy site, Dy(2) is bonded to one Sn(2), one Sn(4), one Sn(5), and four equivalent Sn(1) atoms to form a mixture of distorted edge, face, and corner-sharing DySn7 pentagonal bipyramids. In the third Dy site, Dy(3) is bonded in a 7-coordinate geometry to one Sn(3), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(4) atoms. In the fourth Dy site, Dy(4) is bonded in a 9-coordinate geometry to one Sn(4), four equivalent Sn(1), and four equivalent Sn(3) atoms. There are five inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 10-coordinate geometry to one Dy(3), one Dy(4), two equivalent Dy(1), four equivalent Dy(2), one Sn(1), and one Sn(3) atom. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to two equivalent Dy(2), two equivalent Dy(3), and four equivalent Dy(1) atoms. In the third Sn site, Sn(3) is bonded in a 11-coordinate geometry to one Dy(3), two equivalent Dy(4), four equivalent Dy(1), two equivalent Sn(1), and two equivalent Sn(3) atoms. In the fourth Sn site, Sn(4) is bonded in a 9-coordinate geometry to one Dy(4), four equivalent Dy(2), and four equivalent Dy(3) atoms. In the fifth Sn site, Sn(5) is bonded in a 8-coordinate geometry to four equivalent Dy(1) and four equivalent Dy(2) atoms. is represented by the CIF card [CIF]
data_Dy11Sn10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.586
_cell_length_b   11.586
_cell_length_c   11.824
_cell_angle_alpha   119.340
_cell_angle_beta   119.338
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1144.358
_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
  Dy  Dy0  1  0.271  0.601  0.203  1.0
  Dy  Dy1  1  0.399  0.068  0.797  1.0
  Dy  Dy2  1  0.932  0.601  0.203  1.0
  Dy  Dy3  1  0.601  0.932  0.203  1.0
  Dy  Dy4  1  0.601  0.271  0.203  1.0
  Dy  Dy5  1  0.729  0.399  0.797  1.0
  Dy  Dy6  1  0.068  0.399  0.797  1.0
  Dy  Dy7  1  0.399  0.729  0.797  1.0
  Dy  Dy8  1  0.189  0.937  0.378  1.0
  Dy  Dy9  1  0.559  0.811  0.622  1.0
  Dy  Dy10  1  0.063  0.811  0.622  1.0
  Dy  Dy11  1  0.811  0.063  0.622  1.0
  Dy  Dy12  1  0.811  0.559  0.622  1.0
  Dy  Dy13  1  0.441  0.189  0.378  1.0
  Dy  Dy14  1  0.937  0.189  0.378  1.0
  Dy  Dy15  1  0.189  0.441  0.378  1.0
  Dy  Dy16  1  0.826  0.826  1.000  1.0
  Dy  Dy17  1  0.174  0.826  1.000  1.0
  Dy  Dy18  1  0.826  0.174  0.000  1.0
  Dy  Dy19  1  0.174  0.174  0.000  1.0
  Dy  Dy20  1  0.665  0.665  0.329  1.0
  Dy  Dy21  1  0.335  0.335  0.671  1.0
  Sn  Sn22  1  0.117  0.118  0.647  1.0
  Sn  Sn23  1  0.471  0.471  0.353  1.0
  Sn  Sn24  1  0.883  0.882  0.353  1.0
  Sn  Sn25  1  0.471  0.882  0.353  1.0
  Sn  Sn26  1  0.883  0.471  0.353  1.0
  Sn  Sn27  1  0.529  0.118  0.647  1.0
  Sn  Sn28  1  0.117  0.529  0.647  1.0
  Sn  Sn29  1  0.529  0.529  0.647  1.0
  Sn  Sn30  1  0.645  0.000  0.000  1.0
  Sn  Sn31  1  1.000  0.645  1.000  1.0
  Sn  Sn32  1  0.000  0.355  0.000  1.0
  Sn  Sn33  1  0.355  0.000  0.000  1.0
  Sn  Sn34  1  0.628  0.628  0.000  1.0
  Sn  Sn35  1  0.372  0.628  0.000  1.0
  Sn  Sn36  1  0.628  0.372  1.000  1.0
  Sn  Sn37  1  0.372  0.372  1.000  1.0
  Sn  Sn38  1  0.886  0.886  0.771  1.0
  Sn  Sn39  1  0.114  0.114  0.229  1.0
  Sn  Sn40  1  0.750  0.250  0.500  1.0
  Sn  Sn41  1  0.250  0.750  0.500  1.0
[/CIF]
.
The crystal structure described by Dy11Sn10 crystallizes in the tetragonal I4/mmm space group. There are four inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 7-coordinate geometry to one Sn(5), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(3) atoms. In the second Dy site, Dy(2) is bonded to one Sn(2), one Sn(4), one Sn(5), and four equivalent Sn(1) atoms to form a mixture of distorted edge, face, and corner-sharing DySn7 pentagonal bipyramids. In the third Dy site, Dy(3) is bonded in a 7-coordinate geometry to one Sn(3), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(4) atoms. In the fourth Dy site, Dy(4) is bonded in a 9-coordinate geometry to one Sn(4), four equivalent Sn(1), and four equivalent Sn(3) atoms. There are five inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 10-coordinate geometry to one Dy(3), one Dy(4), two equivalent Dy(1), four equivalent Dy(2), one Sn(1), and one Sn(3) atom. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to two equivalent Dy(2), two equivalent Dy(3), and four equivalent Dy(1) atoms. In the third Sn site, Sn(3) is bonded in a 11-coordinate geometry to one Dy(3), two equivalent Dy(4), four equivalent Dy(1), two equivalent Sn(1), and two equivalent Sn(3) atoms. In the fourth Sn site, Sn(4) is bonded in a 9-coordinate geometry to one Dy(4), four equivalent Dy(2), and four equivalent Dy(3) atoms. In the fifth Sn site, Sn(5) is bonded in a 8-coordinate geometry to four equivalent Dy(1) and four equivalent Dy(2) atoms. is represented by the CIF card [CIF]
data_Dy11Sn10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.586
_cell_length_b   11.586
_cell_length_c   11.824
_cell_angle_alpha   119.340
_cell_angle_beta   119.338
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1144.358
_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
  Dy  Dy0  1  0.271  0.601  0.203  1.0
  Dy  Dy1  1  0.399  0.068  0.797  1.0
  Dy  Dy2  1  0.932  0.601  0.203  1.0
  Dy  Dy3  1  0.601  0.932  0.203  1.0
  Dy  Dy4  1  0.601  0.271  0.203  1.0
  Dy  Dy5  1  0.729  0.399  0.797  1.0
  Dy  Dy6  1  0.068  0.399  0.797  1.0
  Dy  Dy7  1  0.399  0.729  0.797  1.0
  Dy  Dy8  1  0.189  0.937  0.378  1.0
  Dy  Dy9  1  0.559  0.811  0.622  1.0
  Dy  Dy10  1  0.063  0.811  0.622  1.0
  Dy  Dy11  1  0.811  0.063  0.622  1.0
  Dy  Dy12  1  0.811  0.559  0.622  1.0
  Dy  Dy13  1  0.441  0.189  0.378  1.0
  Dy  Dy14  1  0.937  0.189  0.378  1.0
  Dy  Dy15  1  0.189  0.441  0.378  1.0
  Dy  Dy16  1  0.826  0.826  1.000  1.0
  Dy  Dy17  1  0.174  0.826  1.000  1.0
  Dy  Dy18  1  0.826  0.174  0.000  1.0
  Dy  Dy19  1  0.174  0.174  0.000  1.0
  Dy  Dy20  1  0.665  0.665  0.329  1.0
  Dy  Dy21  1  0.335  0.335  0.671  1.0
  Sn  Sn22  1  0.117  0.118  0.647  1.0
  Sn  Sn23  1  0.471  0.471  0.353  1.0
  Sn  Sn24  1  0.883  0.882  0.353  1.0
  Sn  Sn25  1  0.471  0.882  0.353  1.0
  Sn  Sn26  1  0.883  0.471  0.353  1.0
  Sn  Sn27  1  0.529  0.118  0.647  1.0
  Sn  Sn28  1  0.117  0.529  0.647  1.0
  Sn  Sn29  1  0.529  0.529  0.647  1.0
  Sn  Sn30  1  0.645  0.000  0.000  1.0
  Sn  Sn31  1  1.000  0.645  1.000  1.0
  Sn  Sn32  1  0.000  0.355  0.000  1.0
  Sn  Sn33  1  0.355  0.000  0.000  1.0
  Sn  Sn34  1  0.628  0.628  0.000  1.0
  Sn  Sn35  1  0.372  0.628  0.000  1.0
  Sn  Sn36  1  0.628  0.372  1.000  1.0
  Sn  Sn37  1  0.372  0.372  1.000  1.0
  Sn  Sn38  1  0.886  0.886  0.771  1.0
  Sn  Sn39  1  0.114  0.114  0.229  1.0
  Sn  Sn40  1  0.750  0.250  0.500  1.0
  Sn  Sn41  1  0.250  0.750  0.500  1.0
[/CIF]
.