The structure described by La2Au is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent La sites. In the first La site, La(1) is bonded to four equivalent Au(1) atoms to form a mixture of distorted edge and corner-sharing LaAu4 tetrahedra. In the second La site, La(2) is bonded in a 3-coordinate geometry to three equivalent Au(1) atoms. Au(1) is bonded in a 7-coordinate geometry to three equivalent La(2) and four equivalent La(1) atoms. is represented by the CIF file [CIF]
data_La2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.178
_cell_length_b   7.462
_cell_length_c   9.489
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   366.636
_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
  La  La0  1  0.750  0.649  0.593  1.0
  La  La1  1  0.750  0.149  0.907  1.0
  La  La2  1  0.250  0.351  0.407  1.0
  La  La3  1  0.250  0.851  0.093  1.0
  La  La4  1  0.750  0.000  0.328  1.0
  La  La5  1  0.750  0.500  0.172  1.0
  La  La6  1  0.250  1.000  0.672  1.0
  La  La7  1  0.250  0.500  0.828  1.0
  Au  Au8  1  0.750  0.242  0.591  1.0
  Au  Au9  1  0.750  0.742  0.909  1.0
  Au  Au10  1  0.250  0.758  0.409  1.0
  Au  Au11  1  0.250  0.258  0.091  1.0
[/CIF]
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The structure described by La2Au is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent La sites. In the first La site, La(1) is bonded to four equivalent Au(1) atoms to form a mixture of distorted edge and corner-sharing LaAu4 tetrahedra. In the second La site, La(2) is bonded in a 3-coordinate geometry to three equivalent Au(1) atoms. Au(1) is bonded in a 7-coordinate geometry to three equivalent La(2) and four equivalent La(1) atoms. is represented by the CIF file [CIF]
data_La2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.178
_cell_length_b   7.462
_cell_length_c   9.489
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   366.636
_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
  La  La0  1  0.750  0.649  0.593  1.0
  La  La1  1  0.750  0.149  0.907  1.0
  La  La2  1  0.250  0.351  0.407  1.0
  La  La3  1  0.250  0.851  0.093  1.0
  La  La4  1  0.750  0.000  0.328  1.0
  La  La5  1  0.750  0.500  0.172  1.0
  La  La6  1  0.250  1.000  0.672  1.0
  La  La7  1  0.250  0.500  0.828  1.0
  Au  Au8  1  0.750  0.242  0.591  1.0
  Au  Au9  1  0.750  0.742  0.909  1.0
  Au  Au10  1  0.250  0.758  0.409  1.0
  Au  Au11  1  0.250  0.258  0.091  1.0
[/CIF]
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