The structure described by RuCu2Al7 crystallizes in the tetragonal P4/mnc space group. Ru(1) is bonded in a 9-coordinate geometry to one Al(2), four equivalent Al(1), and four equivalent Al(3) atoms. Cu(1) is bonded in a 10-coordinate geometry to two equivalent Cu(1), two equivalent Al(2), and six equivalent Al(3) atoms. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Ru(1) atoms. In the second Al site, Al(2) is bonded in a 5-coordinate geometry to one Ru(1) and four equivalent Cu(1) atoms. In the third Al site, Al(3) is bonded in a 4-coordinate geometry to one Ru(1) and three equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_Al7Cu2Ru
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.387
_cell_length_b   6.387
_cell_length_c   14.774
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   602.678
_cell_formula_units_Z   4
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
  Al  Al0  1  0.157  0.657  0.250  1.0
  Al  Al1  1  0.843  0.343  0.750  1.0
  Al  Al2  1  0.843  0.343  0.250  1.0
  Al  Al3  1  0.343  0.157  0.250  1.0
  Al  Al4  1  0.157  0.657  0.750  1.0
  Al  Al5  1  0.657  0.843  0.750  1.0
  Al  Al6  1  0.657  0.843  0.250  1.0
  Al  Al7  1  0.343  0.157  0.750  1.0
  Al  Al8  1  0.000  0.000  0.130  1.0
  Al  Al9  1  0.000  0.000  0.870  1.0
  Al  Al10  1  0.500  0.500  0.370  1.0
  Al  Al11  1  0.500  0.500  0.630  1.0
  Al  Al12  1  0.201  0.415  0.097  1.0
  Al  Al13  1  0.799  0.585  0.903  1.0
  Al  Al14  1  0.799  0.585  0.097  1.0
  Al  Al15  1  0.585  0.201  0.097  1.0
  Al  Al16  1  0.299  0.915  0.403  1.0
  Al  Al17  1  0.201  0.415  0.903  1.0
  Al  Al18  1  0.415  0.799  0.903  1.0
  Al  Al19  1  0.701  0.085  0.597  1.0
  Al  Al20  1  0.415  0.799  0.097  1.0
  Al  Al21  1  0.701  0.085  0.403  1.0
  Al  Al22  1  0.585  0.201  0.903  1.0
  Al  Al23  1  0.299  0.915  0.597  1.0
  Al  Al24  1  0.915  0.701  0.403  1.0
  Al  Al25  1  0.085  0.299  0.597  1.0
  Al  Al26  1  0.085  0.299  0.403  1.0
  Al  Al27  1  0.915  0.701  0.597  1.0
  Cu  Cu28  1  0.268  0.089  0.000  1.0
  Cu  Cu29  1  0.732  0.911  0.000  1.0
  Cu  Cu30  1  0.911  0.268  0.000  1.0
  Cu  Cu31  1  0.232  0.589  0.500  1.0
  Cu  Cu32  1  0.089  0.732  0.000  1.0
  Cu  Cu33  1  0.768  0.411  0.500  1.0
  Cu  Cu34  1  0.589  0.768  0.500  1.0
  Cu  Cu35  1  0.411  0.232  0.500  1.0
  Ru  Ru36  1  0.000  0.000  0.299  1.0
  Ru  Ru37  1  0.000  0.000  0.701  1.0
  Ru  Ru38  1  0.500  0.500  0.201  1.0
  Ru  Ru39  1  0.500  0.500  0.799  1.0
[/CIF]
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The structure described by RuCu2Al7 crystallizes in the tetragonal P4/mnc space group. Ru(1) is bonded in a 9-coordinate geometry to one Al(2), four equivalent Al(1), and four equivalent Al(3) atoms. Cu(1) is bonded in a 10-coordinate geometry to two equivalent Cu(1), two equivalent Al(2), and six equivalent Al(3) atoms. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Ru(1) atoms. In the second Al site, Al(2) is bonded in a 5-coordinate geometry to one Ru(1) and four equivalent Cu(1) atoms. In the third Al site, Al(3) is bonded in a 4-coordinate geometry to one Ru(1) and three equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_Al7Cu2Ru
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.387
_cell_length_b   6.387
_cell_length_c   14.774
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   602.678
_cell_formula_units_Z   4
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
  Al  Al0  1  0.157  0.657  0.250  1.0
  Al  Al1  1  0.843  0.343  0.750  1.0
  Al  Al2  1  0.843  0.343  0.250  1.0
  Al  Al3  1  0.343  0.157  0.250  1.0
  Al  Al4  1  0.157  0.657  0.750  1.0
  Al  Al5  1  0.657  0.843  0.750  1.0
  Al  Al6  1  0.657  0.843  0.250  1.0
  Al  Al7  1  0.343  0.157  0.750  1.0
  Al  Al8  1  0.000  0.000  0.130  1.0
  Al  Al9  1  0.000  0.000  0.870  1.0
  Al  Al10  1  0.500  0.500  0.370  1.0
  Al  Al11  1  0.500  0.500  0.630  1.0
  Al  Al12  1  0.201  0.415  0.097  1.0
  Al  Al13  1  0.799  0.585  0.903  1.0
  Al  Al14  1  0.799  0.585  0.097  1.0
  Al  Al15  1  0.585  0.201  0.097  1.0
  Al  Al16  1  0.299  0.915  0.403  1.0
  Al  Al17  1  0.201  0.415  0.903  1.0
  Al  Al18  1  0.415  0.799  0.903  1.0
  Al  Al19  1  0.701  0.085  0.597  1.0
  Al  Al20  1  0.415  0.799  0.097  1.0
  Al  Al21  1  0.701  0.085  0.403  1.0
  Al  Al22  1  0.585  0.201  0.903  1.0
  Al  Al23  1  0.299  0.915  0.597  1.0
  Al  Al24  1  0.915  0.701  0.403  1.0
  Al  Al25  1  0.085  0.299  0.597  1.0
  Al  Al26  1  0.085  0.299  0.403  1.0
  Al  Al27  1  0.915  0.701  0.597  1.0
  Cu  Cu28  1  0.268  0.089  0.000  1.0
  Cu  Cu29  1  0.732  0.911  0.000  1.0
  Cu  Cu30  1  0.911  0.268  0.000  1.0
  Cu  Cu31  1  0.232  0.589  0.500  1.0
  Cu  Cu32  1  0.089  0.732  0.000  1.0
  Cu  Cu33  1  0.768  0.411  0.500  1.0
  Cu  Cu34  1  0.589  0.768  0.500  1.0
  Cu  Cu35  1  0.411  0.232  0.500  1.0
  Ru  Ru36  1  0.000  0.000  0.299  1.0
  Ru  Ru37  1  0.000  0.000  0.701  1.0
  Ru  Ru38  1  0.500  0.500  0.201  1.0
  Ru  Ru39  1  0.500  0.500  0.799  1.0
[/CIF]
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