The compound described by Ce2PtPdAl2 crystallizes in the orthorhombic Pmc2_1 space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 11-coordinate geometry to one Pt(1), four equivalent Pd(1), two equivalent Al(1), and four equivalent Al(2) atoms. In the second Ce site, Ce(2) is bonded in a 11-coordinate geometry to four equivalent Pt(1), one Pd(1), two equivalent Al(2), and four equivalent Al(1) atoms. Pt(1) is bonded in a 9-coordinate geometry to one Ce(1), four equivalent Ce(2), two equivalent Al(1), and two equivalent Al(2) atoms. Pd(1) is bonded in a 9-coordinate geometry to one Ce(2), four equivalent Ce(1), two equivalent Al(1), and two equivalent Al(2) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to two equivalent Ce(1), four equivalent Ce(2), two equivalent Pt(1), and two equivalent Pd(1) atoms to form a mixture of distorted face and corner-sharing AlCe6Pd2Pt2 tetrahedra. In the second Al site, Al(2) is bonded in a 4-coordinate geometry to two equivalent Ce(2), four equivalent Ce(1), two equivalent Pt(1), and two equivalent Pd(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ce2Al2PdPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.448
_cell_length_b   7.213
_cell_length_c   7.879
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   252.780
_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
  Ce  Ce0  1  0.500  0.468  0.569  1.0
  Ce  Ce1  1  0.500  0.968  0.431  1.0
  Ce  Ce2  1  0.000  0.528  0.929  1.0
  Ce  Ce3  1  0.000  0.028  0.071  1.0
  Al  Al4  1  0.500  0.352  0.180  1.0
  Al  Al5  1  0.500  0.852  0.820  1.0
  Al  Al6  1  0.000  0.649  0.315  1.0
  Al  Al7  1  0.000  0.149  0.685  1.0
  Pd  Pd8  1  0.000  0.783  0.639  1.0
  Pd  Pd9  1  0.000  0.283  0.361  1.0
  Pt  Pt10  1  0.500  0.219  0.862  1.0
  Pt  Pt11  1  0.500  0.719  0.138  1.0
[/CIF]
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The compound described by Ce2PtPdAl2 crystallizes in the orthorhombic Pmc2_1 space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 11-coordinate geometry to one Pt(1), four equivalent Pd(1), two equivalent Al(1), and four equivalent Al(2) atoms. In the second Ce site, Ce(2) is bonded in a 11-coordinate geometry to four equivalent Pt(1), one Pd(1), two equivalent Al(2), and four equivalent Al(1) atoms. Pt(1) is bonded in a 9-coordinate geometry to one Ce(1), four equivalent Ce(2), two equivalent Al(1), and two equivalent Al(2) atoms. Pd(1) is bonded in a 9-coordinate geometry to one Ce(2), four equivalent Ce(1), two equivalent Al(1), and two equivalent Al(2) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to two equivalent Ce(1), four equivalent Ce(2), two equivalent Pt(1), and two equivalent Pd(1) atoms to form a mixture of distorted face and corner-sharing AlCe6Pd2Pt2 tetrahedra. In the second Al site, Al(2) is bonded in a 4-coordinate geometry to two equivalent Ce(2), four equivalent Ce(1), two equivalent Pt(1), and two equivalent Pd(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ce2Al2PdPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.448
_cell_length_b   7.213
_cell_length_c   7.879
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   252.780
_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
  Ce  Ce0  1  0.500  0.468  0.569  1.0
  Ce  Ce1  1  0.500  0.968  0.431  1.0
  Ce  Ce2  1  0.000  0.528  0.929  1.0
  Ce  Ce3  1  0.000  0.028  0.071  1.0
  Al  Al4  1  0.500  0.352  0.180  1.0
  Al  Al5  1  0.500  0.852  0.820  1.0
  Al  Al6  1  0.000  0.649  0.315  1.0
  Al  Al7  1  0.000  0.149  0.685  1.0
  Pd  Pd8  1  0.000  0.783  0.639  1.0
  Pd  Pd9  1  0.000  0.283  0.361  1.0
  Pt  Pt10  1  0.500  0.219  0.862  1.0
  Pt  Pt11  1  0.500  0.719  0.138  1.0
[/CIF]
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