The structure described by PrCuAl3 crystallizes in the tetragonal I4mm space group. Pr(1) is bonded in a 16-coordinate geometry to four equivalent Cu(1), four equivalent Al(1), and eight equivalent Al(2) atoms. Cu(1) is bonded in a 5-coordinate geometry to four equivalent Pr(1), one Al(1), and four equivalent Al(2) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted single-bond geometry to four equivalent Pr(1), one Cu(1), and four equivalent Al(2) atoms. In the second Al site, Al(2) is bonded in a distorted bent 120 degrees geometry to four equivalent Pr(1), two equivalent Cu(1), and two equivalent Al(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_PrAl3Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.097
_cell_length_b   6.097
_cell_length_c   6.097
_cell_angle_alpha   139.331
_cell_angle_beta   139.331
_cell_angle_gamma   58.871
_symmetry_Int_Tables_number   1
_cell_volume   95.355
_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
  Pr  Pr0  1  0.999  0.999  0.000  1.0
  Al  Al1  1  0.407  0.407  0.000  1.0
  Al  Al2  1  0.249  0.749  0.500  1.0
  Al  Al3  1  0.749  0.249  0.500  1.0
  Cu  Cu4  1  0.633  0.633  0.000  1.0
[/CIF]
.
The structure described by PrCuAl3 crystallizes in the tetragonal I4mm space group. Pr(1) is bonded in a 16-coordinate geometry to four equivalent Cu(1), four equivalent Al(1), and eight equivalent Al(2) atoms. Cu(1) is bonded in a 5-coordinate geometry to four equivalent Pr(1), one Al(1), and four equivalent Al(2) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted single-bond geometry to four equivalent Pr(1), one Cu(1), and four equivalent Al(2) atoms. In the second Al site, Al(2) is bonded in a distorted bent 120 degrees geometry to four equivalent Pr(1), two equivalent Cu(1), and two equivalent Al(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_PrAl3Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.097
_cell_length_b   6.097
_cell_length_c   6.097
_cell_angle_alpha   139.331
_cell_angle_beta   139.331
_cell_angle_gamma   58.871
_symmetry_Int_Tables_number   1
_cell_volume   95.355
_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
  Pr  Pr0  1  0.999  0.999  0.000  1.0
  Al  Al1  1  0.407  0.407  0.000  1.0
  Al  Al2  1  0.249  0.749  0.500  1.0
  Al  Al3  1  0.749  0.249  0.500  1.0
  Cu  Cu4  1  0.633  0.633  0.000  1.0
[/CIF]
.