The compound described by Yb7Ni4Sn13 crystallizes in the tetragonal P4/m space group. There are three inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 16-coordinate geometry to four equivalent Ni(1), four equivalent Sn(1), and eight equivalent Sn(2) atoms. In the second Yb site, Yb(2) is bonded in a 11-coordinate geometry to two equivalent Ni(1), one Sn(2), two equivalent Sn(1), two equivalent Sn(4), and four equivalent Sn(3) atoms. In the third Yb site, Yb(3) is bonded in a 14-coordinate geometry to four equivalent Ni(1), two equivalent Sn(2), four equivalent Sn(1), and four equivalent Sn(3) atoms. Ni(1) is bonded in a 5-coordinate geometry to one Yb(1), two equivalent Yb(2), two equivalent Yb(3), one Sn(3), two equivalent Sn(1), and two equivalent Sn(2) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 8-coordinate geometry to one Yb(1), two equivalent Yb(2), two equivalent Yb(3), two equivalent Ni(1), and one Sn(3) atom. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to one Yb(2), one Yb(3), two equivalent Yb(1), and two equivalent Ni(1) atoms. In the third Sn site, Sn(3) is bonded in a 9-coordinate geometry to two equivalent Yb(3), four equivalent Yb(2), one Ni(1), one Sn(1), and one Sn(4) atom. In the fourth Sn site, Sn(4) is bonded to eight equivalent Yb(2) and four equivalent Sn(3) atoms to form face-sharing SnYb8Sn4 cuboctahedra. is represented by the CIF file [CIF]
data_Yb7Ni4Sn13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.209
_cell_length_b   11.209
_cell_length_c   4.584
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   575.985
_cell_formula_units_Z   1
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  0.000  0.000  0.000  1.0
  Yb  Yb1  1  0.338  0.671  0.500  1.0
  Yb  Yb2  1  0.662  0.329  0.500  1.0
  Yb  Yb3  1  0.329  0.338  0.500  1.0
  Yb  Yb4  1  0.671  0.662  0.500  1.0
  Yb  Yb5  1  0.500  0.000  0.500  1.0
  Yb  Yb6  1  0.000  0.500  0.500  1.0
  Ni  Ni7  1  0.120  0.724  0.000  1.0
  Ni  Ni8  1  0.880  0.276  0.000  1.0
  Ni  Ni9  1  0.276  0.120  0.000  1.0
  Ni  Ni10  1  0.724  0.880  0.000  1.0
  Sn  Sn11  1  0.284  0.889  0.000  1.0
  Sn  Sn12  1  0.716  0.111  0.000  1.0
  Sn  Sn13  1  0.111  0.284  0.000  1.0
  Sn  Sn14  1  0.889  0.716  0.000  1.0
  Sn  Sn15  1  0.077  0.810  0.500  1.0
  Sn  Sn16  1  0.923  0.190  0.500  1.0
  Sn  Sn17  1  0.190  0.077  0.500  1.0
  Sn  Sn18  1  0.810  0.923  0.500  1.0
  Sn  Sn19  1  0.519  0.785  0.000  1.0
  Sn  Sn20  1  0.481  0.215  0.000  1.0
  Sn  Sn21  1  0.215  0.519  0.000  1.0
  Sn  Sn22  1  0.785  0.481  0.000  1.0
  Sn  Sn23  1  0.500  0.500  0.000  1.0
[/CIF]
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The compound described by Yb7Ni4Sn13 crystallizes in the tetragonal P4/m space group. There are three inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 16-coordinate geometry to four equivalent Ni(1), four equivalent Sn(1), and eight equivalent Sn(2) atoms. In the second Yb site, Yb(2) is bonded in a 11-coordinate geometry to two equivalent Ni(1), one Sn(2), two equivalent Sn(1), two equivalent Sn(4), and four equivalent Sn(3) atoms. In the third Yb site, Yb(3) is bonded in a 14-coordinate geometry to four equivalent Ni(1), two equivalent Sn(2), four equivalent Sn(1), and four equivalent Sn(3) atoms. Ni(1) is bonded in a 5-coordinate geometry to one Yb(1), two equivalent Yb(2), two equivalent Yb(3), one Sn(3), two equivalent Sn(1), and two equivalent Sn(2) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 8-coordinate geometry to one Yb(1), two equivalent Yb(2), two equivalent Yb(3), two equivalent Ni(1), and one Sn(3) atom. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to one Yb(2), one Yb(3), two equivalent Yb(1), and two equivalent Ni(1) atoms. In the third Sn site, Sn(3) is bonded in a 9-coordinate geometry to two equivalent Yb(3), four equivalent Yb(2), one Ni(1), one Sn(1), and one Sn(4) atom. In the fourth Sn site, Sn(4) is bonded to eight equivalent Yb(2) and four equivalent Sn(3) atoms to form face-sharing SnYb8Sn4 cuboctahedra. is represented by the CIF file [CIF]
data_Yb7Ni4Sn13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.209
_cell_length_b   11.209
_cell_length_c   4.584
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   575.985
_cell_formula_units_Z   1
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  0.000  0.000  0.000  1.0
  Yb  Yb1  1  0.338  0.671  0.500  1.0
  Yb  Yb2  1  0.662  0.329  0.500  1.0
  Yb  Yb3  1  0.329  0.338  0.500  1.0
  Yb  Yb4  1  0.671  0.662  0.500  1.0
  Yb  Yb5  1  0.500  0.000  0.500  1.0
  Yb  Yb6  1  0.000  0.500  0.500  1.0
  Ni  Ni7  1  0.120  0.724  0.000  1.0
  Ni  Ni8  1  0.880  0.276  0.000  1.0
  Ni  Ni9  1  0.276  0.120  0.000  1.0
  Ni  Ni10  1  0.724  0.880  0.000  1.0
  Sn  Sn11  1  0.284  0.889  0.000  1.0
  Sn  Sn12  1  0.716  0.111  0.000  1.0
  Sn  Sn13  1  0.111  0.284  0.000  1.0
  Sn  Sn14  1  0.889  0.716  0.000  1.0
  Sn  Sn15  1  0.077  0.810  0.500  1.0
  Sn  Sn16  1  0.923  0.190  0.500  1.0
  Sn  Sn17  1  0.190  0.077  0.500  1.0
  Sn  Sn18  1  0.810  0.923  0.500  1.0
  Sn  Sn19  1  0.519  0.785  0.000  1.0
  Sn  Sn20  1  0.481  0.215  0.000  1.0
  Sn  Sn21  1  0.215  0.519  0.000  1.0
  Sn  Sn22  1  0.785  0.481  0.000  1.0
  Sn  Sn23  1  0.500  0.500  0.000  1.0
[/CIF]
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