The material described by Y4Ni11In20 crystallizes in the monoclinic C2/m space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 14-coordinate geometry to two equivalent Ni(2), two equivalent Ni(3), one In(5), one In(6), one In(9), two equivalent In(1), two equivalent In(3), and three equivalent In(10) atoms. In the second Y site, Y(2) is bonded in a 15-coordinate geometry to two equivalent Ni(1), two equivalent Ni(5), one In(1), one In(5), one In(7), one In(8), two equivalent In(4), two equivalent In(9), and three equivalent In(2) atoms. There are six inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to two equivalent Y(2), one In(7), one In(9), two equivalent In(1), and three equivalent In(2) atoms. In the second Ni site, Ni(2) is bonded in a 9-coordinate geometry to two equivalent Y(1), one In(3), one In(6), two equivalent In(5), and three equivalent In(10) atoms. In the third Ni site, Ni(3) is bonded in a 10-coordinate geometry to two equivalent Y(1), one In(1), one In(10), two equivalent In(6), two equivalent In(8), and two equivalent In(9) atoms. In the fourth Ni site, Ni(4) is bonded in a 9-coordinate geometry to two equivalent Ni(6), one In(5), two equivalent In(3), two equivalent In(4), and two equivalent In(7) atoms. In the fifth Ni site, Ni(5) is bonded in a 9-coordinate geometry to two equivalent Y(2), one In(4), one In(6), one In(9), two equivalent In(5), and two equivalent In(8) atoms. In the sixth Ni site, Ni(6) is bonded to four equivalent Ni(4), two equivalent In(3), two equivalent In(4), and four equivalent In(7) atoms to form distorted face-sharing NiIn8Ni4 cuboctahedra. There are ten inequivalent In sites. In the first In site, In(1) is bonded in a 10-coordinate geometry to one Y(2), two equivalent Y(1), one Ni(3), two equivalent Ni(1), one In(2), one In(3), and two equivalent In(9) atoms. In the second In site, In(2) is bonded in a 5-coordinate geometry to three equivalent Y(2), three equivalent Ni(1), and one In(1) atom. In the third In site, In(3) is bonded in a 6-coordinate geometry to two equivalent Y(1), one Ni(2), one Ni(6), two equivalent Ni(4), and one In(1) atom. In the fourth In site, In(4) is bonded in a 6-coordinate geometry to two equivalent Y(2), one Ni(5), one Ni(6), and two equivalent Ni(4) atoms. In the fifth In site, In(5) is bonded in a 5-coordinate geometry to one Y(1), one Y(2), one Ni(4), two equivalent Ni(2), two equivalent Ni(5), one In(10), and one In(8) atom. In the sixth In site, In(6) is bonded in a 10-coordinate geometry to one Y(1), one Ni(2), one Ni(5), two equivalent Ni(3), one In(9), two equivalent In(10), and two equivalent In(8) atoms. In the seventh In site, In(7) is bonded in a 3-coordinate geometry to one Y(2), one Ni(1), two equivalent Ni(4), and two equivalent Ni(6) atoms. In the eighth In site, In(8) is bonded in a 11-coordinate geometry to one Y(2), two equivalent Ni(3), two equivalent Ni(5), one In(5), one In(8), two equivalent In(6), and two equivalent In(9) atoms. In the ninth In site, In(9) is bonded in a 12-coordinate geometry to one Y(1), two equivalent Y(2), one Ni(1), one Ni(5), two equivalent Ni(3), one In(6), two equivalent In(1), and two equivalent In(8) atoms. In the tenth In site, In(10) is bonded in a 12-coordinate geometry to three equivalent Y(1), one Ni(3), three equivalent Ni(2), one In(5), two equivalent In(10), and two equivalent In(6) atoms. is represented by the CIF card [CIF]
data_Y4In20Ni11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.510
_cell_length_b   11.510
_cell_length_c   16.668
_cell_angle_alpha   56.921
_cell_angle_beta   56.921
_cell_angle_gamma   21.750
_symmetry_Int_Tables_number   1
_cell_volume   680.169
_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  0.228  0.228  0.674  1.0
  Y  Y1  1  0.118  0.118  0.168  1.0
  Y  Y2  1  0.882  0.882  0.832  1.0
  Y  Y3  1  0.772  0.772  0.326  1.0
  In  In4  1  0.245  0.245  0.210  1.0
  In  In5  1  0.702  0.702  0.998  1.0
  In  In6  1  0.387  0.387  0.191  1.0
  In  In7  1  0.613  0.613  0.809  1.0
  In  In8  1  0.459  0.459  0.877  1.0
  In  In9  1  0.936  0.936  0.290  1.0
  In  In10  1  0.600  0.600  0.509  1.0
  In  In11  1  0.755  0.755  0.790  1.0
  In  In12  1  0.113  0.113  0.949  1.0
  In  In13  1  0.541  0.541  0.123  1.0
  In  In14  1  0.988  0.988  0.596  1.0
  In  In15  1  0.012  0.012  0.404  1.0
  In  In16  1  0.400  0.400  0.491  1.0
  In  In17  1  0.628  0.628  0.303  1.0
  In  In18  1  0.797  0.797  0.503  1.0
  In  In19  1  0.298  0.298  0.002  1.0
  In  In20  1  0.203  0.203  0.497  1.0
  In  In21  1  0.887  0.887  0.051  1.0
  In  In22  1  0.372  0.372  0.697  1.0
  In  In23  1  0.064  0.064  0.710  1.0
  Ni  Ni24  1  0.252  0.252  0.883  1.0
  Ni  Ni25  1  0.346  0.346  0.379  1.0
  Ni  Ni26  1  0.862  0.862  0.604  1.0
  Ni  Ni27  1  0.021  0.021  0.899  1.0
  Ni  Ni28  1  0.492  0.492  0.694  1.0
  Ni  Ni29  1  0.979  0.979  0.101  1.0
  Ni  Ni30  1  0.500  0.500  0.000  1.0
  Ni  Ni31  1  0.654  0.654  0.621  1.0
  Ni  Ni32  1  0.138  0.138  0.396  1.0
  Ni  Ni33  1  0.508  0.508  0.306  1.0
  Ni  Ni34  1  0.748  0.748  0.117  1.0
[/CIF]
.
The material described by Y4Ni11In20 crystallizes in the monoclinic C2/m space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 14-coordinate geometry to two equivalent Ni(2), two equivalent Ni(3), one In(5), one In(6), one In(9), two equivalent In(1), two equivalent In(3), and three equivalent In(10) atoms. In the second Y site, Y(2) is bonded in a 15-coordinate geometry to two equivalent Ni(1), two equivalent Ni(5), one In(1), one In(5), one In(7), one In(8), two equivalent In(4), two equivalent In(9), and three equivalent In(2) atoms. There are six inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to two equivalent Y(2), one In(7), one In(9), two equivalent In(1), and three equivalent In(2) atoms. In the second Ni site, Ni(2) is bonded in a 9-coordinate geometry to two equivalent Y(1), one In(3), one In(6), two equivalent In(5), and three equivalent In(10) atoms. In the third Ni site, Ni(3) is bonded in a 10-coordinate geometry to two equivalent Y(1), one In(1), one In(10), two equivalent In(6), two equivalent In(8), and two equivalent In(9) atoms. In the fourth Ni site, Ni(4) is bonded in a 9-coordinate geometry to two equivalent Ni(6), one In(5), two equivalent In(3), two equivalent In(4), and two equivalent In(7) atoms. In the fifth Ni site, Ni(5) is bonded in a 9-coordinate geometry to two equivalent Y(2), one In(4), one In(6), one In(9), two equivalent In(5), and two equivalent In(8) atoms. In the sixth Ni site, Ni(6) is bonded to four equivalent Ni(4), two equivalent In(3), two equivalent In(4), and four equivalent In(7) atoms to form distorted face-sharing NiIn8Ni4 cuboctahedra. There are ten inequivalent In sites. In the first In site, In(1) is bonded in a 10-coordinate geometry to one Y(2), two equivalent Y(1), one Ni(3), two equivalent Ni(1), one In(2), one In(3), and two equivalent In(9) atoms. In the second In site, In(2) is bonded in a 5-coordinate geometry to three equivalent Y(2), three equivalent Ni(1), and one In(1) atom. In the third In site, In(3) is bonded in a 6-coordinate geometry to two equivalent Y(1), one Ni(2), one Ni(6), two equivalent Ni(4), and one In(1) atom. In the fourth In site, In(4) is bonded in a 6-coordinate geometry to two equivalent Y(2), one Ni(5), one Ni(6), and two equivalent Ni(4) atoms. In the fifth In site, In(5) is bonded in a 5-coordinate geometry to one Y(1), one Y(2), one Ni(4), two equivalent Ni(2), two equivalent Ni(5), one In(10), and one In(8) atom. In the sixth In site, In(6) is bonded in a 10-coordinate geometry to one Y(1), one Ni(2), one Ni(5), two equivalent Ni(3), one In(9), two equivalent In(10), and two equivalent In(8) atoms. In the seventh In site, In(7) is bonded in a 3-coordinate geometry to one Y(2), one Ni(1), two equivalent Ni(4), and two equivalent Ni(6) atoms. In the eighth In site, In(8) is bonded in a 11-coordinate geometry to one Y(2), two equivalent Ni(3), two equivalent Ni(5), one In(5), one In(8), two equivalent In(6), and two equivalent In(9) atoms. In the ninth In site, In(9) is bonded in a 12-coordinate geometry to one Y(1), two equivalent Y(2), one Ni(1), one Ni(5), two equivalent Ni(3), one In(6), two equivalent In(1), and two equivalent In(8) atoms. In the tenth In site, In(10) is bonded in a 12-coordinate geometry to three equivalent Y(1), one Ni(3), three equivalent Ni(2), one In(5), two equivalent In(10), and two equivalent In(6) atoms. is represented by the CIF card [CIF]
data_Y4In20Ni11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.510
_cell_length_b   11.510
_cell_length_c   16.668
_cell_angle_alpha   56.921
_cell_angle_beta   56.921
_cell_angle_gamma   21.750
_symmetry_Int_Tables_number   1
_cell_volume   680.169
_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  0.228  0.228  0.674  1.0
  Y  Y1  1  0.118  0.118  0.168  1.0
  Y  Y2  1  0.882  0.882  0.832  1.0
  Y  Y3  1  0.772  0.772  0.326  1.0
  In  In4  1  0.245  0.245  0.210  1.0
  In  In5  1  0.702  0.702  0.998  1.0
  In  In6  1  0.387  0.387  0.191  1.0
  In  In7  1  0.613  0.613  0.809  1.0
  In  In8  1  0.459  0.459  0.877  1.0
  In  In9  1  0.936  0.936  0.290  1.0
  In  In10  1  0.600  0.600  0.509  1.0
  In  In11  1  0.755  0.755  0.790  1.0
  In  In12  1  0.113  0.113  0.949  1.0
  In  In13  1  0.541  0.541  0.123  1.0
  In  In14  1  0.988  0.988  0.596  1.0
  In  In15  1  0.012  0.012  0.404  1.0
  In  In16  1  0.400  0.400  0.491  1.0
  In  In17  1  0.628  0.628  0.303  1.0
  In  In18  1  0.797  0.797  0.503  1.0
  In  In19  1  0.298  0.298  0.002  1.0
  In  In20  1  0.203  0.203  0.497  1.0
  In  In21  1  0.887  0.887  0.051  1.0
  In  In22  1  0.372  0.372  0.697  1.0
  In  In23  1  0.064  0.064  0.710  1.0
  Ni  Ni24  1  0.252  0.252  0.883  1.0
  Ni  Ni25  1  0.346  0.346  0.379  1.0
  Ni  Ni26  1  0.862  0.862  0.604  1.0
  Ni  Ni27  1  0.021  0.021  0.899  1.0
  Ni  Ni28  1  0.492  0.492  0.694  1.0
  Ni  Ni29  1  0.979  0.979  0.101  1.0
  Ni  Ni30  1  0.500  0.500  0.000  1.0
  Ni  Ni31  1  0.654  0.654  0.621  1.0
  Ni  Ni32  1  0.138  0.138  0.396  1.0
  Ni  Ni33  1  0.508  0.508  0.306  1.0
  Ni  Ni34  1  0.748  0.748  0.117  1.0
[/CIF]
.