The crystal structure described by AuSn2 crystallizes in the orthorhombic Pbca space group. Au(1) is bonded to three equivalent Sn(1) and three equivalent Sn(2) atoms to form a mixture of edge and corner-sharing AuSn6 octahedra. The corner-sharing octahedral tilt angles range from 48-66°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 3-coordinate geometry to three equivalent Au(1) atoms. In the second Sn site, Sn(2) is bonded in a 3-coordinate geometry to three equivalent Au(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sn2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.956
_cell_length_b   7.066
_cell_length_c   12.036
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   591.643
_cell_formula_units_Z   8
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
  Sn  Sn0  1  0.629  0.519  0.326  1.0
  Sn  Sn1  1  0.129  0.981  0.674  1.0
  Sn  Sn2  1  0.371  0.019  0.174  1.0
  Sn  Sn3  1  0.871  0.481  0.826  1.0
  Sn  Sn4  1  0.371  0.481  0.674  1.0
  Sn  Sn5  1  0.871  0.019  0.326  1.0
  Sn  Sn6  1  0.629  0.981  0.826  1.0
  Sn  Sn7  1  0.129  0.519  0.174  1.0
  Sn  Sn8  1  0.856  0.243  0.088  1.0
  Sn  Sn9  1  0.356  0.257  0.912  1.0
  Sn  Sn10  1  0.144  0.743  0.412  1.0
  Sn  Sn11  1  0.644  0.757  0.588  1.0
  Sn  Sn12  1  0.144  0.757  0.912  1.0
  Sn  Sn13  1  0.644  0.743  0.088  1.0
  Sn  Sn14  1  0.856  0.257  0.588  1.0
  Sn  Sn15  1  0.356  0.243  0.412  1.0
  Au  Au16  1  0.510  0.883  0.381  1.0
  Au  Au17  1  0.010  0.617  0.619  1.0
  Au  Au18  1  0.490  0.383  0.119  1.0
  Au  Au19  1  0.990  0.117  0.881  1.0
  Au  Au20  1  0.490  0.117  0.619  1.0
  Au  Au21  1  0.990  0.383  0.381  1.0
  Au  Au22  1  0.510  0.617  0.881  1.0
  Au  Au23  1  0.010  0.883  0.119  1.0
[/CIF]
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The crystal structure described by AuSn2 crystallizes in the orthorhombic Pbca space group. Au(1) is bonded to three equivalent Sn(1) and three equivalent Sn(2) atoms to form a mixture of edge and corner-sharing AuSn6 octahedra. The corner-sharing octahedral tilt angles range from 48-66°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 3-coordinate geometry to three equivalent Au(1) atoms. In the second Sn site, Sn(2) is bonded in a 3-coordinate geometry to three equivalent Au(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sn2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.956
_cell_length_b   7.066
_cell_length_c   12.036
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   591.643
_cell_formula_units_Z   8
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
  Sn  Sn0  1  0.629  0.519  0.326  1.0
  Sn  Sn1  1  0.129  0.981  0.674  1.0
  Sn  Sn2  1  0.371  0.019  0.174  1.0
  Sn  Sn3  1  0.871  0.481  0.826  1.0
  Sn  Sn4  1  0.371  0.481  0.674  1.0
  Sn  Sn5  1  0.871  0.019  0.326  1.0
  Sn  Sn6  1  0.629  0.981  0.826  1.0
  Sn  Sn7  1  0.129  0.519  0.174  1.0
  Sn  Sn8  1  0.856  0.243  0.088  1.0
  Sn  Sn9  1  0.356  0.257  0.912  1.0
  Sn  Sn10  1  0.144  0.743  0.412  1.0
  Sn  Sn11  1  0.644  0.757  0.588  1.0
  Sn  Sn12  1  0.144  0.757  0.912  1.0
  Sn  Sn13  1  0.644  0.743  0.088  1.0
  Sn  Sn14  1  0.856  0.257  0.588  1.0
  Sn  Sn15  1  0.356  0.243  0.412  1.0
  Au  Au16  1  0.510  0.883  0.381  1.0
  Au  Au17  1  0.010  0.617  0.619  1.0
  Au  Au18  1  0.490  0.383  0.119  1.0
  Au  Au19  1  0.990  0.117  0.881  1.0
  Au  Au20  1  0.490  0.117  0.619  1.0
  Au  Au21  1  0.990  0.383  0.381  1.0
  Au  Au22  1  0.510  0.617  0.881  1.0
  Au  Au23  1  0.010  0.883  0.119  1.0
[/CIF]
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