The structure described by Y4NiSn8 crystallizes in the orthorhombic Pmm2 space group. There are four inequivalent Y sites. In the first Y site, Y(1) is bonded in a 10-coordinate geometry to two equivalent Sn(2), two equivalent Sn(5), two equivalent Sn(7), and four equivalent Sn(3) atoms. In the second Y site, Y(2) is bonded in a 10-coordinate geometry to two equivalent Sn(1), two equivalent Sn(6), two equivalent Sn(8), and four equivalent Sn(4) atoms. In the third Y site, Y(3) is bonded in a 14-coordinate geometry to four equivalent Ni(1), two equivalent Sn(4), two equivalent Sn(5), two equivalent Sn(7), and four equivalent Sn(1) atoms. In the fourth Y site, Y(4) is bonded in a 10-coordinate geometry to two equivalent Sn(3), two equivalent Sn(6), two equivalent Sn(8), and four equivalent Sn(2) atoms. Ni(1) is bonded in a 5-coordinate geometry to four equivalent Y(3), one Sn(1), two equivalent Sn(5), and two equivalent Sn(7) atoms. There are eight inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to two equivalent Y(2), four equivalent Y(3), one Ni(1), and two equivalent Sn(4) atoms. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to two equivalent Y(1), four equivalent Y(4), and two equivalent Sn(3) atoms. In the third Sn site, Sn(3) is bonded in a 8-coordinate geometry to two equivalent Y(4), four equivalent Y(1), and two equivalent Sn(2) atoms. In the fourth Sn site, Sn(4) is bonded in a 8-coordinate geometry to two equivalent Y(3), four equivalent Y(2), and two equivalent Sn(1) atoms. In the fifth Sn site, Sn(5) is bonded in a 10-coordinate geometry to two equivalent Y(1), two equivalent Y(3), two equivalent Ni(1), and four equivalent Sn(7) atoms. In the sixth Sn site, Sn(6) is bonded in a 8-coordinate geometry to two equivalent Y(2), two equivalent Y(4), and four equivalent Sn(8) atoms. In the seventh Sn site, Sn(7) is bonded in a 10-coordinate geometry to two equivalent Y(1), two equivalent Y(3), two equivalent Ni(1), and four equivalent Sn(5) atoms. In the eighth Sn site, Sn(8) is bonded in a 8-coordinate geometry to two equivalent Y(2), two equivalent Y(4), and four equivalent Sn(6) atoms. is represented by the CIF card [CIF]
data_Y4NiSn8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.412
_cell_length_b   4.403
_cell_length_c   16.909
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   328.466
_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
  Y  Y0  1  0.250  0.000  0.098  1.0
  Y  Y1  1  0.250  0.500  0.603  1.0
  Y  Y2  1  0.750  0.500  0.397  1.0
  Y  Y3  1  0.750  0.000  0.899  1.0
  Ni  Ni4  1  0.250  0.000  0.310  1.0
  Sn  Sn5  1  0.250  0.000  0.456  1.0
  Sn  Sn6  1  0.250  0.500  0.936  1.0
  Sn  Sn7  1  0.750  0.500  0.058  1.0
  Sn  Sn8  1  0.750  0.000  0.571  1.0
  Sn  Sn9  1  0.250  0.500  0.237  1.0
  Sn  Sn10  1  0.250  0.000  0.747  1.0
  Sn  Sn11  1  0.750  0.000  0.238  1.0
  Sn  Sn12  1  0.750  0.500  0.754  1.0
[/CIF]
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The structure described by Y4NiSn8 crystallizes in the orthorhombic Pmm2 space group. There are four inequivalent Y sites. In the first Y site, Y(1) is bonded in a 10-coordinate geometry to two equivalent Sn(2), two equivalent Sn(5), two equivalent Sn(7), and four equivalent Sn(3) atoms. In the second Y site, Y(2) is bonded in a 10-coordinate geometry to two equivalent Sn(1), two equivalent Sn(6), two equivalent Sn(8), and four equivalent Sn(4) atoms. In the third Y site, Y(3) is bonded in a 14-coordinate geometry to four equivalent Ni(1), two equivalent Sn(4), two equivalent Sn(5), two equivalent Sn(7), and four equivalent Sn(1) atoms. In the fourth Y site, Y(4) is bonded in a 10-coordinate geometry to two equivalent Sn(3), two equivalent Sn(6), two equivalent Sn(8), and four equivalent Sn(2) atoms. Ni(1) is bonded in a 5-coordinate geometry to four equivalent Y(3), one Sn(1), two equivalent Sn(5), and two equivalent Sn(7) atoms. There are eight inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to two equivalent Y(2), four equivalent Y(3), one Ni(1), and two equivalent Sn(4) atoms. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to two equivalent Y(1), four equivalent Y(4), and two equivalent Sn(3) atoms. In the third Sn site, Sn(3) is bonded in a 8-coordinate geometry to two equivalent Y(4), four equivalent Y(1), and two equivalent Sn(2) atoms. In the fourth Sn site, Sn(4) is bonded in a 8-coordinate geometry to two equivalent Y(3), four equivalent Y(2), and two equivalent Sn(1) atoms. In the fifth Sn site, Sn(5) is bonded in a 10-coordinate geometry to two equivalent Y(1), two equivalent Y(3), two equivalent Ni(1), and four equivalent Sn(7) atoms. In the sixth Sn site, Sn(6) is bonded in a 8-coordinate geometry to two equivalent Y(2), two equivalent Y(4), and four equivalent Sn(8) atoms. In the seventh Sn site, Sn(7) is bonded in a 10-coordinate geometry to two equivalent Y(1), two equivalent Y(3), two equivalent Ni(1), and four equivalent Sn(5) atoms. In the eighth Sn site, Sn(8) is bonded in a 8-coordinate geometry to two equivalent Y(2), two equivalent Y(4), and four equivalent Sn(6) atoms. is represented by the CIF card [CIF]
data_Y4NiSn8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.412
_cell_length_b   4.403
_cell_length_c   16.909
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   328.466
_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
  Y  Y0  1  0.250  0.000  0.098  1.0
  Y  Y1  1  0.250  0.500  0.603  1.0
  Y  Y2  1  0.750  0.500  0.397  1.0
  Y  Y3  1  0.750  0.000  0.899  1.0
  Ni  Ni4  1  0.250  0.000  0.310  1.0
  Sn  Sn5  1  0.250  0.000  0.456  1.0
  Sn  Sn6  1  0.250  0.500  0.936  1.0
  Sn  Sn7  1  0.750  0.500  0.058  1.0
  Sn  Sn8  1  0.750  0.000  0.571  1.0
  Sn  Sn9  1  0.250  0.500  0.237  1.0
  Sn  Sn10  1  0.250  0.000  0.747  1.0
  Sn  Sn11  1  0.750  0.000  0.238  1.0
  Sn  Sn12  1  0.750  0.500  0.754  1.0
[/CIF]
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