The crystal structure described by La5Au3Cu2Al15 crystallizes in the tetragonal I4mm space group. There are five inequivalent La sites. In the first La site, La(1) is bonded in a 16-coordinate geometry to four equivalent Cu(1), four equivalent Al(10), four equivalent Al(5), and four equivalent Al(6) atoms. In the second La site, La(2) is bonded in a 16-coordinate geometry to four equivalent Cu(2), four equivalent Al(1), four equivalent Al(6), and four equivalent Al(7) atoms. In the third La site, La(3) is bonded in a 16-coordinate geometry to four equivalent Au(1), four equivalent Al(2), four equivalent Al(7), and four equivalent Al(8) atoms. In the fourth La site, La(4) is bonded in a 16-coordinate geometry to four equivalent Au(2), four equivalent Al(3), four equivalent Al(8), and four equivalent Al(9) atoms. In the fifth La site, La(5) is bonded in a 16-coordinate geometry to four equivalent Au(3), four equivalent Al(10), four equivalent Al(4), and four equivalent Al(9) atoms. There are three inequivalent Au sites. In the first Au site, Au(1) is bonded in a 5-coordinate geometry to four equivalent La(3), one Al(2), and four equivalent Al(8) atoms. In the second Au site, Au(2) is bonded in a 5-coordinate geometry to four equivalent La(4), one Al(3), and four equivalent Al(9) atoms. In the third Au site, Au(3) is bonded in a 5-coordinate geometry to four equivalent La(5), one Al(4), and four equivalent Al(10) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 5-coordinate geometry to four equivalent La(1), one Al(5), and four equivalent Al(6) atoms. In the second Cu site, Cu(2) is bonded in a 5-coordinate geometry to four equivalent La(2), one Al(1), and four equivalent Al(7) atoms. There are ten inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted single-bond geometry to four equivalent La(2), one Cu(2), and four equivalent Al(6) atoms. In the second Al site, Al(2) is bonded in a distorted single-bond geometry to four equivalent La(3) and one Au(1) atom. In the third Al site, Al(3) is bonded in a distorted single-bond geometry to four equivalent La(4) and one Au(2) atom. In the fourth Al site, Al(4) is bonded in a distorted single-bond geometry to four equivalent La(5) and one Au(3) atom. In the fifth Al site, Al(5) is bonded in a distorted single-bond geometry to four equivalent La(1) and one Cu(1) atom. In the sixth Al site, Al(6) is bonded in a distorted bent 120 degrees geometry to two equivalent La(1), two equivalent La(2), two equivalent Cu(1), and two equivalent Al(1) atoms. In the seventh Al site, Al(7) is bonded in a distorted bent 120 degrees geometry to two equivalent La(2), two equivalent La(3), and two equivalent Cu(2) atoms. In the eighth Al site, Al(8) is bonded in a distorted bent 120 degrees geometry to two equivalent La(3), two equivalent La(4), and two equivalent Au(1) atoms. In the ninth Al site, Al(9) is bonded in a distorted bent 120 degrees geometry to two equivalent La(4), two equivalent La(5), and two equivalent Au(2) atoms. In the tenth Al site, Al(10) is bonded in a distorted bent 120 degrees geometry to two equivalent La(1), two equivalent La(5), and two equivalent Au(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_La5Al15Cu2Au3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.370
_cell_length_b   4.370
_cell_length_c   27.165
_cell_angle_alpha   85.387
_cell_angle_beta   85.387
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   515.339
_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
  La  La0  1  0.001  0.001  0.998  1.0
  La  La1  1  0.402  0.402  0.197  1.0
  La  La2  1  0.803  0.803  0.395  1.0
  La  La3  1  0.202  0.202  0.595  1.0
  La  La4  1  0.602  0.602  0.795  1.0
  Al  Al5  1  0.920  0.920  0.160  1.0
  Al  Al6  1  0.322  0.322  0.356  1.0
  Al  Al7  1  0.721  0.721  0.558  1.0
  Al  Al8  1  0.121  0.121  0.759  1.0
  Al  Al9  1  0.519  0.519  0.962  1.0
  Al  Al10  1  0.451  0.951  0.098  1.0
  Al  Al11  1  0.852  0.352  0.297  1.0
  Al  Al12  1  0.250  0.750  0.500  1.0
  Al  Al13  1  0.650  0.150  0.700  1.0
  Al  Al14  1  0.049  0.549  0.901  1.0
  Al  Al15  1  0.951  0.451  0.098  1.0
  Al  Al16  1  0.352  0.852  0.297  1.0
  Al  Al17  1  0.750  0.250  0.500  1.0
  Al  Al18  1  0.150  0.650  0.700  1.0
  Al  Al19  1  0.549  0.049  0.901  1.0
  Cu  Cu20  1  0.474  0.474  0.052  1.0
  Cu  Cu21  1  0.875  0.875  0.251  1.0
  Au  Au22  1  0.275  0.275  0.450  1.0
  Au  Au23  1  0.675  0.675  0.651  1.0
  Au  Au24  1  0.074  0.074  0.851  1.0
[/CIF]
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The crystal structure described by La5Au3Cu2Al15 crystallizes in the tetragonal I4mm space group. There are five inequivalent La sites. In the first La site, La(1) is bonded in a 16-coordinate geometry to four equivalent Cu(1), four equivalent Al(10), four equivalent Al(5), and four equivalent Al(6) atoms. In the second La site, La(2) is bonded in a 16-coordinate geometry to four equivalent Cu(2), four equivalent Al(1), four equivalent Al(6), and four equivalent Al(7) atoms. In the third La site, La(3) is bonded in a 16-coordinate geometry to four equivalent Au(1), four equivalent Al(2), four equivalent Al(7), and four equivalent Al(8) atoms. In the fourth La site, La(4) is bonded in a 16-coordinate geometry to four equivalent Au(2), four equivalent Al(3), four equivalent Al(8), and four equivalent Al(9) atoms. In the fifth La site, La(5) is bonded in a 16-coordinate geometry to four equivalent Au(3), four equivalent Al(10), four equivalent Al(4), and four equivalent Al(9) atoms. There are three inequivalent Au sites. In the first Au site, Au(1) is bonded in a 5-coordinate geometry to four equivalent La(3), one Al(2), and four equivalent Al(8) atoms. In the second Au site, Au(2) is bonded in a 5-coordinate geometry to four equivalent La(4), one Al(3), and four equivalent Al(9) atoms. In the third Au site, Au(3) is bonded in a 5-coordinate geometry to four equivalent La(5), one Al(4), and four equivalent Al(10) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 5-coordinate geometry to four equivalent La(1), one Al(5), and four equivalent Al(6) atoms. In the second Cu site, Cu(2) is bonded in a 5-coordinate geometry to four equivalent La(2), one Al(1), and four equivalent Al(7) atoms. There are ten inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted single-bond geometry to four equivalent La(2), one Cu(2), and four equivalent Al(6) atoms. In the second Al site, Al(2) is bonded in a distorted single-bond geometry to four equivalent La(3) and one Au(1) atom. In the third Al site, Al(3) is bonded in a distorted single-bond geometry to four equivalent La(4) and one Au(2) atom. In the fourth Al site, Al(4) is bonded in a distorted single-bond geometry to four equivalent La(5) and one Au(3) atom. In the fifth Al site, Al(5) is bonded in a distorted single-bond geometry to four equivalent La(1) and one Cu(1) atom. In the sixth Al site, Al(6) is bonded in a distorted bent 120 degrees geometry to two equivalent La(1), two equivalent La(2), two equivalent Cu(1), and two equivalent Al(1) atoms. In the seventh Al site, Al(7) is bonded in a distorted bent 120 degrees geometry to two equivalent La(2), two equivalent La(3), and two equivalent Cu(2) atoms. In the eighth Al site, Al(8) is bonded in a distorted bent 120 degrees geometry to two equivalent La(3), two equivalent La(4), and two equivalent Au(1) atoms. In the ninth Al site, Al(9) is bonded in a distorted bent 120 degrees geometry to two equivalent La(4), two equivalent La(5), and two equivalent Au(2) atoms. In the tenth Al site, Al(10) is bonded in a distorted bent 120 degrees geometry to two equivalent La(1), two equivalent La(5), and two equivalent Au(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_La5Al15Cu2Au3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.370
_cell_length_b   4.370
_cell_length_c   27.165
_cell_angle_alpha   85.387
_cell_angle_beta   85.387
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   515.339
_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
  La  La0  1  0.001  0.001  0.998  1.0
  La  La1  1  0.402  0.402  0.197  1.0
  La  La2  1  0.803  0.803  0.395  1.0
  La  La3  1  0.202  0.202  0.595  1.0
  La  La4  1  0.602  0.602  0.795  1.0
  Al  Al5  1  0.920  0.920  0.160  1.0
  Al  Al6  1  0.322  0.322  0.356  1.0
  Al  Al7  1  0.721  0.721  0.558  1.0
  Al  Al8  1  0.121  0.121  0.759  1.0
  Al  Al9  1  0.519  0.519  0.962  1.0
  Al  Al10  1  0.451  0.951  0.098  1.0
  Al  Al11  1  0.852  0.352  0.297  1.0
  Al  Al12  1  0.250  0.750  0.500  1.0
  Al  Al13  1  0.650  0.150  0.700  1.0
  Al  Al14  1  0.049  0.549  0.901  1.0
  Al  Al15  1  0.951  0.451  0.098  1.0
  Al  Al16  1  0.352  0.852  0.297  1.0
  Al  Al17  1  0.750  0.250  0.500  1.0
  Al  Al18  1  0.150  0.650  0.700  1.0
  Al  Al19  1  0.549  0.049  0.901  1.0
  Cu  Cu20  1  0.474  0.474  0.052  1.0
  Cu  Cu21  1  0.875  0.875  0.251  1.0
  Au  Au22  1  0.275  0.275  0.450  1.0
  Au  Au23  1  0.675  0.675  0.651  1.0
  Au  Au24  1  0.074  0.074  0.851  1.0
[/CIF]
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