The compound described by PrAu3Al7 crystallizes in the trigonal R-3c space group. Pr(1) is bonded in a 18-coordinate geometry to six equivalent Au(1) and twelve equivalent Al(1) atoms. Au(1) is bonded in a 9-coordinate geometry to two equivalent Pr(1), one Al(2), and six equivalent Al(1) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted trigonal planar geometry to two equivalent Pr(1) and three equivalent Au(1) atoms. In the second Al site, Al(2) is bonded in a trigonal planar geometry to three equivalent Au(1) atoms. is represented by the CIF card [CIF]
data_PrAl7Au3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.526
_cell_length_b   8.526
_cell_length_c   8.526
_cell_angle_alpha   57.291
_cell_angle_beta   57.291
_cell_angle_gamma   57.291
_symmetry_Int_Tables_number   1
_cell_volume   410.871
_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
  Pr  Pr0  1  0.000  0.000  0.000  1.0
  Pr  Pr1  1  0.500  0.500  0.500  1.0
  Al  Al2  1  0.931  0.147  0.332  1.0
  Al  Al3  1  0.332  0.931  0.147  1.0
  Al  Al4  1  0.147  0.332  0.931  1.0
  Al  Al5  1  0.569  0.168  0.353  1.0
  Al  Al6  1  0.353  0.569  0.168  1.0
  Al  Al7  1  0.168  0.353  0.569  1.0
  Al  Al8  1  0.069  0.853  0.668  1.0
  Al  Al9  1  0.668  0.069  0.853  1.0
  Al  Al10  1  0.750  0.750  0.750  1.0
  Al  Al11  1  0.250  0.250  0.250  1.0
  Al  Al12  1  0.832  0.647  0.431  1.0
  Al  Al13  1  0.647  0.431  0.832  1.0
  Al  Al14  1  0.431  0.832  0.647  1.0
  Al  Al15  1  0.853  0.668  0.069  1.0
  Au  Au16  1  0.250  0.570  0.930  1.0
  Au  Au17  1  0.930  0.250  0.570  1.0
  Au  Au18  1  0.570  0.930  0.250  1.0
  Au  Au19  1  0.750  0.430  0.070  1.0
  Au  Au20  1  0.070  0.750  0.430  1.0
  Au  Au21  1  0.430  0.070  0.750  1.0
[/CIF]
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The compound described by PrAu3Al7 crystallizes in the trigonal R-3c space group. Pr(1) is bonded in a 18-coordinate geometry to six equivalent Au(1) and twelve equivalent Al(1) atoms. Au(1) is bonded in a 9-coordinate geometry to two equivalent Pr(1), one Al(2), and six equivalent Al(1) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted trigonal planar geometry to two equivalent Pr(1) and three equivalent Au(1) atoms. In the second Al site, Al(2) is bonded in a trigonal planar geometry to three equivalent Au(1) atoms. is represented by the CIF card [CIF]
data_PrAl7Au3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.526
_cell_length_b   8.526
_cell_length_c   8.526
_cell_angle_alpha   57.291
_cell_angle_beta   57.291
_cell_angle_gamma   57.291
_symmetry_Int_Tables_number   1
_cell_volume   410.871
_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
  Pr  Pr0  1  0.000  0.000  0.000  1.0
  Pr  Pr1  1  0.500  0.500  0.500  1.0
  Al  Al2  1  0.931  0.147  0.332  1.0
  Al  Al3  1  0.332  0.931  0.147  1.0
  Al  Al4  1  0.147  0.332  0.931  1.0
  Al  Al5  1  0.569  0.168  0.353  1.0
  Al  Al6  1  0.353  0.569  0.168  1.0
  Al  Al7  1  0.168  0.353  0.569  1.0
  Al  Al8  1  0.069  0.853  0.668  1.0
  Al  Al9  1  0.668  0.069  0.853  1.0
  Al  Al10  1  0.750  0.750  0.750  1.0
  Al  Al11  1  0.250  0.250  0.250  1.0
  Al  Al12  1  0.832  0.647  0.431  1.0
  Al  Al13  1  0.647  0.431  0.832  1.0
  Al  Al14  1  0.431  0.832  0.647  1.0
  Al  Al15  1  0.853  0.668  0.069  1.0
  Au  Au16  1  0.250  0.570  0.930  1.0
  Au  Au17  1  0.930  0.250  0.570  1.0
  Au  Au18  1  0.570  0.930  0.250  1.0
  Au  Au19  1  0.750  0.430  0.070  1.0
  Au  Au20  1  0.070  0.750  0.430  1.0
  Au  Au21  1  0.430  0.070  0.750  1.0
[/CIF]
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