The compound described by LaPd2Al2 crystallizes in the tetragonal P4/nmm space group. La(1) is bonded in a 16-coordinate geometry to four equivalent Pd(1), four equivalent Pd(2), four equivalent Al(1), and four equivalent Al(2) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 4-coordinate geometry to four equivalent La(1) and four equivalent Al(2) atoms. In the second Pd site, Pd(2) is bonded in a 5-coordinate geometry to four equivalent La(1), one Al(2), and four equivalent Al(1) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to four equivalent La(1) and four equivalent Pd(2) atoms to form a mixture of distorted face and edge-sharing AlLa4Pd4 tetrahedra. In the second Al site, Al(2) is bonded in a 5-coordinate geometry to four equivalent La(1), one Pd(2), and four equivalent Pd(1) atoms. is represented by the CIF file [CIF]
data_La(AlPd)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.438
_cell_length_b   4.438
_cell_length_c   10.003
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   197.009
_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
  La  La0  1  0.000  0.500  0.247  1.0
  La  La1  1  0.500  0.000  0.753  1.0
  Al  Al2  1  0.000  0.000  0.500  1.0
  Al  Al3  1  0.500  0.500  0.500  1.0
  Al  Al4  1  0.000  0.500  0.879  1.0
  Al  Al5  1  0.500  0.000  0.121  1.0
  Pd  Pd6  1  0.000  0.000  0.000  1.0
  Pd  Pd7  1  0.500  0.500  0.000  1.0
  Pd  Pd8  1  0.000  0.500  0.628  1.0
  Pd  Pd9  1  0.500  0.000  0.372  1.0
[/CIF]
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The compound described by LaPd2Al2 crystallizes in the tetragonal P4/nmm space group. La(1) is bonded in a 16-coordinate geometry to four equivalent Pd(1), four equivalent Pd(2), four equivalent Al(1), and four equivalent Al(2) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 4-coordinate geometry to four equivalent La(1) and four equivalent Al(2) atoms. In the second Pd site, Pd(2) is bonded in a 5-coordinate geometry to four equivalent La(1), one Al(2), and four equivalent Al(1) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to four equivalent La(1) and four equivalent Pd(2) atoms to form a mixture of distorted face and edge-sharing AlLa4Pd4 tetrahedra. In the second Al site, Al(2) is bonded in a 5-coordinate geometry to four equivalent La(1), one Pd(2), and four equivalent Pd(1) atoms. is represented by the CIF file [CIF]
data_La(AlPd)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.438
_cell_length_b   4.438
_cell_length_c   10.003
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   197.009
_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
  La  La0  1  0.000  0.500  0.247  1.0
  La  La1  1  0.500  0.000  0.753  1.0
  Al  Al2  1  0.000  0.000  0.500  1.0
  Al  Al3  1  0.500  0.500  0.500  1.0
  Al  Al4  1  0.000  0.500  0.879  1.0
  Al  Al5  1  0.500  0.000  0.121  1.0
  Pd  Pd6  1  0.000  0.000  0.000  1.0
  Pd  Pd7  1  0.500  0.500  0.000  1.0
  Pd  Pd8  1  0.000  0.500  0.628  1.0
  Pd  Pd9  1  0.500  0.000  0.372  1.0
[/CIF]
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