The material described by Al11Nd3 crystallizes in the orthorhombic Immm space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded to four equivalent Al(2), four equivalent Al(4), and eight equivalent Al(3) atoms to form distorted NdAl16 cuboctahedra that share corners with four equivalent Al(1)Nd4Al8 cuboctahedra, faces with two equivalent Nd(1)Al16 cuboctahedra, faces with two equivalent Al(1)Nd4Al8 cuboctahedra, and faces with four equivalent Al(2)Nd4Al8 cuboctahedra. In the second Nd site, Nd(2) is bonded in a 12-coordinate geometry to two equivalent Al(1), two equivalent Al(2), four equivalent Al(3), and six equivalent Al(4) atoms. There are four inequivalent Al sites. In the first Al site, Al(1) is bonded to four equivalent Nd(2), four equivalent Al(2), and four equivalent Al(4) atoms to form distorted AlNd4Al8 cuboctahedra that share corners with four equivalent Nd(1)Al16 cuboctahedra, faces with two equivalent Nd(1)Al16 cuboctahedra, faces with two equivalent Al(1)Nd4Al8 cuboctahedra, and faces with four equivalent Al(2)Nd4Al8 cuboctahedra. In the second Al site, Al(2) is bonded to two equivalent Nd(1), two equivalent Nd(2), two equivalent Al(1), two equivalent Al(3), and four equivalent Al(4) atoms to form distorted AlNd4Al8 cuboctahedra that share corners with four equivalent Al(2)Nd4Al8 cuboctahedra,  an edgeedge with one Al(2)Nd4Al8 cuboctahedra, faces with two equivalent Nd(1)Al16 cuboctahedra, faces with two equivalent Al(1)Nd4Al8 cuboctahedra, and faces with three equivalent Al(2)Nd4Al8 cuboctahedra. In the third Al site, Al(3) is bonded in a 9-coordinate geometry to two equivalent Nd(1), two equivalent Nd(2), one Al(2), one Al(3), and three equivalent Al(4) atoms. In the fourth Al site, Al(4) is bonded in a 10-coordinate geometry to one Nd(1), three equivalent Nd(2), one Al(1), two equivalent Al(2), and three equivalent Al(3) atoms. is represented by the CIF card [CIF]
data_Nd3Al11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.363
_cell_length_b   8.462
_cell_length_c   8.462
_cell_angle_alpha   72.222
_cell_angle_beta   75.060
_cell_angle_gamma   75.060
_symmetry_Int_Tables_number   1
_cell_volume   281.954
_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
  Nd  Nd0  1  0.000  0.000  0.000  1.0
  Nd  Nd1  1  0.317  0.683  0.683  1.0
  Nd  Nd2  1  0.683  0.317  0.317  1.0
  Al  Al3  1  0.000  0.500  0.500  1.0
  Al  Al4  1  0.500  0.285  0.715  1.0
  Al  Al5  1  0.500  0.715  0.285  1.0
  Al  Al6  1  0.334  0.298  0.034  1.0
  Al  Al7  1  0.666  0.702  0.966  1.0
  Al  Al8  1  0.334  0.034  0.298  1.0
  Al  Al9  1  0.666  0.966  0.702  1.0
  Al  Al10  1  0.136  0.590  0.139  1.0
  Al  Al11  1  0.864  0.410  0.861  1.0
  Al  Al12  1  0.136  0.139  0.590  1.0
  Al  Al13  1  0.864  0.861  0.410  1.0
[/CIF]
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The material described by Al11Nd3 crystallizes in the orthorhombic Immm space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded to four equivalent Al(2), four equivalent Al(4), and eight equivalent Al(3) atoms to form distorted NdAl16 cuboctahedra that share corners with four equivalent Al(1)Nd4Al8 cuboctahedra, faces with two equivalent Nd(1)Al16 cuboctahedra, faces with two equivalent Al(1)Nd4Al8 cuboctahedra, and faces with four equivalent Al(2)Nd4Al8 cuboctahedra. In the second Nd site, Nd(2) is bonded in a 12-coordinate geometry to two equivalent Al(1), two equivalent Al(2), four equivalent Al(3), and six equivalent Al(4) atoms. There are four inequivalent Al sites. In the first Al site, Al(1) is bonded to four equivalent Nd(2), four equivalent Al(2), and four equivalent Al(4) atoms to form distorted AlNd4Al8 cuboctahedra that share corners with four equivalent Nd(1)Al16 cuboctahedra, faces with two equivalent Nd(1)Al16 cuboctahedra, faces with two equivalent Al(1)Nd4Al8 cuboctahedra, and faces with four equivalent Al(2)Nd4Al8 cuboctahedra. In the second Al site, Al(2) is bonded to two equivalent Nd(1), two equivalent Nd(2), two equivalent Al(1), two equivalent Al(3), and four equivalent Al(4) atoms to form distorted AlNd4Al8 cuboctahedra that share corners with four equivalent Al(2)Nd4Al8 cuboctahedra,  an edgeedge with one Al(2)Nd4Al8 cuboctahedra, faces with two equivalent Nd(1)Al16 cuboctahedra, faces with two equivalent Al(1)Nd4Al8 cuboctahedra, and faces with three equivalent Al(2)Nd4Al8 cuboctahedra. In the third Al site, Al(3) is bonded in a 9-coordinate geometry to two equivalent Nd(1), two equivalent Nd(2), one Al(2), one Al(3), and three equivalent Al(4) atoms. In the fourth Al site, Al(4) is bonded in a 10-coordinate geometry to one Nd(1), three equivalent Nd(2), one Al(1), two equivalent Al(2), and three equivalent Al(3) atoms. is represented by the CIF card [CIF]
data_Nd3Al11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.363
_cell_length_b   8.462
_cell_length_c   8.462
_cell_angle_alpha   72.222
_cell_angle_beta   75.060
_cell_angle_gamma   75.060
_symmetry_Int_Tables_number   1
_cell_volume   281.954
_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
  Nd  Nd0  1  0.000  0.000  0.000  1.0
  Nd  Nd1  1  0.317  0.683  0.683  1.0
  Nd  Nd2  1  0.683  0.317  0.317  1.0
  Al  Al3  1  0.000  0.500  0.500  1.0
  Al  Al4  1  0.500  0.285  0.715  1.0
  Al  Al5  1  0.500  0.715  0.285  1.0
  Al  Al6  1  0.334  0.298  0.034  1.0
  Al  Al7  1  0.666  0.702  0.966  1.0
  Al  Al8  1  0.334  0.034  0.298  1.0
  Al  Al9  1  0.666  0.966  0.702  1.0
  Al  Al10  1  0.136  0.590  0.139  1.0
  Al  Al11  1  0.864  0.410  0.861  1.0
  Al  Al12  1  0.136  0.139  0.590  1.0
  Al  Al13  1  0.864  0.861  0.410  1.0
[/CIF]
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