The material described by Nd(CrAl10)2 crystallizes in the cubic Fd-3m space group. Nd(1) is bonded in a 16-coordinate geometry to four equivalent Cr(1) and twelve equivalent Al(2) atoms. Cr(1) is bonded in a 14-coordinate geometry to two equivalent Nd(1) and twelve equivalent Al(2) atoms. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded to two equivalent Al(3), four equivalent Al(1), and six equivalent Al(2) atoms to form distorted AlAl12 cuboctahedra that share corners with two equivalent Al(1)Al12 cuboctahedra, corners with sixteen equivalent Al(2)NdAl9Cr2 cuboctahedra, edges with two equivalent Al(3)Al12 cuboctahedra, faces with two equivalent Al(3)Al12 cuboctahedra, faces with nine equivalent Al(1)Al12 cuboctahedra, and faces with fourteen equivalent Al(2)NdAl9Cr2 cuboctahedra. In the second Al site, Al(3) is bonded to six equivalent Al(1) and six equivalent Al(2) atoms to form AlAl12 cuboctahedra that share corners with six equivalent Al(3)Al12 cuboctahedra, edges with six equivalent Al(1)Al12 cuboctahedra, edges with eighteen equivalent Al(2)NdAl9Cr2 cuboctahedra, faces with six equivalent Al(1)Al12 cuboctahedra, and faces with six equivalent Al(2)NdAl9Cr2 cuboctahedra. In the third Al site, Al(2) is bonded to one Nd(1), two equivalent Cr(1), one Al(3), three equivalent Al(1), and five equivalent Al(2) atoms to form AlNdAl9Cr2 cuboctahedra that share corners with eight equivalent Al(1)Al12 cuboctahedra, corners with fifteen equivalent Al(2)NdAl9Cr2 cuboctahedra, edges with two equivalent Al(2)NdAl9Cr2 cuboctahedra, edges with three equivalent Al(3)Al12 cuboctahedra,  a faceface with one Al(3)Al12 cuboctahedra, faces with seven equivalent Al(1)Al12 cuboctahedra, and faces with fifteen equivalent Al(2)NdAl9Cr2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nd(Al10Cr)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.439
_cell_length_b   10.439
_cell_length_c   10.439
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   804.304
_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
  Nd  Nd0  1  0.500  0.500  0.500  1.0
  Nd  Nd1  1  0.750  0.750  0.750  1.0
  Al  Al2  1  0.862  0.862  0.138  1.0
  Al  Al3  1  0.138  0.138  0.862  1.0
  Al  Al4  1  0.862  0.138  0.862  1.0
  Al  Al5  1  0.138  0.862  0.138  1.0
  Al  Al6  1  0.138  0.862  0.862  1.0
  Al  Al7  1  0.862  0.138  0.138  1.0
  Al  Al8  1  0.388  0.388  0.112  1.0
  Al  Al9  1  0.112  0.112  0.388  1.0
  Al  Al10  1  0.388  0.112  0.388  1.0
  Al  Al11  1  0.112  0.388  0.112  1.0
  Al  Al12  1  0.112  0.388  0.388  1.0
  Al  Al13  1  0.388  0.112  0.112  1.0
  Al  Al14  1  0.570  0.301  0.301  1.0
  Al  Al15  1  0.301  0.570  0.828  1.0
  Al  Al16  1  0.301  0.828  0.570  1.0
  Al  Al17  1  0.828  0.301  0.301  1.0
  Al  Al18  1  0.301  0.301  0.570  1.0
  Al  Al19  1  0.570  0.828  0.301  1.0
  Al  Al20  1  0.828  0.570  0.301  1.0
  Al  Al21  1  0.301  0.301  0.828  1.0
  Al  Al22  1  0.301  0.570  0.301  1.0
  Al  Al23  1  0.828  0.301  0.570  1.0
  Al  Al24  1  0.570  0.301  0.828  1.0
  Al  Al25  1  0.301  0.828  0.301  1.0
  Al  Al26  1  0.680  0.949  0.949  1.0
  Al  Al27  1  0.949  0.680  0.422  1.0
  Al  Al28  1  0.949  0.422  0.680  1.0
  Al  Al29  1  0.422  0.949  0.949  1.0
  Al  Al30  1  0.949  0.949  0.680  1.0
  Al  Al31  1  0.680  0.422  0.949  1.0
  Al  Al32  1  0.422  0.680  0.949  1.0
  Al  Al33  1  0.949  0.949  0.422  1.0
  Al  Al34  1  0.949  0.680  0.949  1.0
  Al  Al35  1  0.422  0.949  0.680  1.0
  Al  Al36  1  0.680  0.949  0.422  1.0
  Al  Al37  1  0.949  0.422  0.949  1.0
  Al  Al38  1  0.625  0.125  0.125  1.0
  Al  Al39  1  0.125  0.625  0.125  1.0
  Al  Al40  1  0.125  0.125  0.625  1.0
  Al  Al41  1  0.125  0.125  0.125  1.0
  Cr  Cr42  1  0.125  0.625  0.625  1.0
  Cr  Cr43  1  0.625  0.125  0.625  1.0
  Cr  Cr44  1  0.625  0.625  0.125  1.0
  Cr  Cr45  1  0.625  0.625  0.625  1.0
[/CIF]
.
The material described by Nd(CrAl10)2 crystallizes in the cubic Fd-3m space group. Nd(1) is bonded in a 16-coordinate geometry to four equivalent Cr(1) and twelve equivalent Al(2) atoms. Cr(1) is bonded in a 14-coordinate geometry to two equivalent Nd(1) and twelve equivalent Al(2) atoms. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded to two equivalent Al(3), four equivalent Al(1), and six equivalent Al(2) atoms to form distorted AlAl12 cuboctahedra that share corners with two equivalent Al(1)Al12 cuboctahedra, corners with sixteen equivalent Al(2)NdAl9Cr2 cuboctahedra, edges with two equivalent Al(3)Al12 cuboctahedra, faces with two equivalent Al(3)Al12 cuboctahedra, faces with nine equivalent Al(1)Al12 cuboctahedra, and faces with fourteen equivalent Al(2)NdAl9Cr2 cuboctahedra. In the second Al site, Al(3) is bonded to six equivalent Al(1) and six equivalent Al(2) atoms to form AlAl12 cuboctahedra that share corners with six equivalent Al(3)Al12 cuboctahedra, edges with six equivalent Al(1)Al12 cuboctahedra, edges with eighteen equivalent Al(2)NdAl9Cr2 cuboctahedra, faces with six equivalent Al(1)Al12 cuboctahedra, and faces with six equivalent Al(2)NdAl9Cr2 cuboctahedra. In the third Al site, Al(2) is bonded to one Nd(1), two equivalent Cr(1), one Al(3), three equivalent Al(1), and five equivalent Al(2) atoms to form AlNdAl9Cr2 cuboctahedra that share corners with eight equivalent Al(1)Al12 cuboctahedra, corners with fifteen equivalent Al(2)NdAl9Cr2 cuboctahedra, edges with two equivalent Al(2)NdAl9Cr2 cuboctahedra, edges with three equivalent Al(3)Al12 cuboctahedra,  a faceface with one Al(3)Al12 cuboctahedra, faces with seven equivalent Al(1)Al12 cuboctahedra, and faces with fifteen equivalent Al(2)NdAl9Cr2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nd(Al10Cr)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.439
_cell_length_b   10.439
_cell_length_c   10.439
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   804.304
_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
  Nd  Nd0  1  0.500  0.500  0.500  1.0
  Nd  Nd1  1  0.750  0.750  0.750  1.0
  Al  Al2  1  0.862  0.862  0.138  1.0
  Al  Al3  1  0.138  0.138  0.862  1.0
  Al  Al4  1  0.862  0.138  0.862  1.0
  Al  Al5  1  0.138  0.862  0.138  1.0
  Al  Al6  1  0.138  0.862  0.862  1.0
  Al  Al7  1  0.862  0.138  0.138  1.0
  Al  Al8  1  0.388  0.388  0.112  1.0
  Al  Al9  1  0.112  0.112  0.388  1.0
  Al  Al10  1  0.388  0.112  0.388  1.0
  Al  Al11  1  0.112  0.388  0.112  1.0
  Al  Al12  1  0.112  0.388  0.388  1.0
  Al  Al13  1  0.388  0.112  0.112  1.0
  Al  Al14  1  0.570  0.301  0.301  1.0
  Al  Al15  1  0.301  0.570  0.828  1.0
  Al  Al16  1  0.301  0.828  0.570  1.0
  Al  Al17  1  0.828  0.301  0.301  1.0
  Al  Al18  1  0.301  0.301  0.570  1.0
  Al  Al19  1  0.570  0.828  0.301  1.0
  Al  Al20  1  0.828  0.570  0.301  1.0
  Al  Al21  1  0.301  0.301  0.828  1.0
  Al  Al22  1  0.301  0.570  0.301  1.0
  Al  Al23  1  0.828  0.301  0.570  1.0
  Al  Al24  1  0.570  0.301  0.828  1.0
  Al  Al25  1  0.301  0.828  0.301  1.0
  Al  Al26  1  0.680  0.949  0.949  1.0
  Al  Al27  1  0.949  0.680  0.422  1.0
  Al  Al28  1  0.949  0.422  0.680  1.0
  Al  Al29  1  0.422  0.949  0.949  1.0
  Al  Al30  1  0.949  0.949  0.680  1.0
  Al  Al31  1  0.680  0.422  0.949  1.0
  Al  Al32  1  0.422  0.680  0.949  1.0
  Al  Al33  1  0.949  0.949  0.422  1.0
  Al  Al34  1  0.949  0.680  0.949  1.0
  Al  Al35  1  0.422  0.949  0.680  1.0
  Al  Al36  1  0.680  0.949  0.422  1.0
  Al  Al37  1  0.949  0.422  0.949  1.0
  Al  Al38  1  0.625  0.125  0.125  1.0
  Al  Al39  1  0.125  0.625  0.125  1.0
  Al  Al40  1  0.125  0.125  0.625  1.0
  Al  Al41  1  0.125  0.125  0.125  1.0
  Cr  Cr42  1  0.125  0.625  0.625  1.0
  Cr  Cr43  1  0.625  0.125  0.625  1.0
  Cr  Cr44  1  0.625  0.625  0.125  1.0
  Cr  Cr45  1  0.625  0.625  0.625  1.0
[/CIF]
.