The material described by AlY2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 5-coordinate geometry to five equivalent Al(1) atoms. In the second Y site, Y(2) is bonded in a 3-coordinate geometry to five equivalent Al(1) atoms. Al(1) is bonded in a 10-coordinate geometry to five equivalent Y(1) and five equivalent Y(2) atoms. is represented by the CIF file [CIF]
data_Y2Al
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.113
_cell_length_b   6.609
_cell_length_c   9.490
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   320.693
_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
  Y  Y0  1  0.750  0.187  0.927  1.0
  Y  Y1  1  0.250  0.813  0.073  1.0
  Y  Y2  1  0.750  0.687  0.573  1.0
  Y  Y3  1  0.250  0.313  0.427  1.0
  Y  Y4  1  0.750  0.027  0.292  1.0
  Y  Y5  1  0.250  0.973  0.708  1.0
  Y  Y6  1  0.750  0.527  0.208  1.0
  Y  Y7  1  0.250  0.473  0.792  1.0
  Al  Al8  1  0.750  0.710  0.896  1.0
  Al  Al9  1  0.250  0.290  0.104  1.0
  Al  Al10  1  0.750  0.210  0.604  1.0
  Al  Al11  1  0.250  0.790  0.396  1.0
[/CIF]
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The material described by AlY2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 5-coordinate geometry to five equivalent Al(1) atoms. In the second Y site, Y(2) is bonded in a 3-coordinate geometry to five equivalent Al(1) atoms. Al(1) is bonded in a 10-coordinate geometry to five equivalent Y(1) and five equivalent Y(2) atoms. is represented by the CIF file [CIF]
data_Y2Al
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.113
_cell_length_b   6.609
_cell_length_c   9.490
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   320.693
_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
  Y  Y0  1  0.750  0.187  0.927  1.0
  Y  Y1  1  0.250  0.813  0.073  1.0
  Y  Y2  1  0.750  0.687  0.573  1.0
  Y  Y3  1  0.250  0.313  0.427  1.0
  Y  Y4  1  0.750  0.027  0.292  1.0
  Y  Y5  1  0.250  0.973  0.708  1.0
  Y  Y6  1  0.750  0.527  0.208  1.0
  Y  Y7  1  0.250  0.473  0.792  1.0
  Al  Al8  1  0.750  0.710  0.896  1.0
  Al  Al9  1  0.250  0.290  0.104  1.0
  Al  Al10  1  0.750  0.210  0.604  1.0
  Al  Al11  1  0.250  0.790  0.396  1.0
[/CIF]
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