The crystal structure described by AuTa2 crystallizes in the tetragonal P4_2/mnm space group. There are three inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 15-coordinate geometry to one Ta(1), two equivalent Ta(2), six equivalent Ta(3), two equivalent Au(1), and four equivalent Au(2) atoms. In the second Ta site, Ta(2) is bonded in a 4-coordinate geometry to one Ta(1) and four equivalent Au(2) atoms. In the third Ta site, Ta(3) is bonded in a 7-coordinate geometry to two equivalent Ta(3), three equivalent Ta(1), one Au(1), and four equivalent Au(2) atoms. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded to four equivalent Ta(1), four equivalent Ta(3), and four equivalent Au(2) atoms to form distorted edge-sharing AuTa8Au4 cuboctahedra. In the second Au site, Au(2) is bonded in a 12-coordinate geometry to two equivalent Ta(1), four equivalent Ta(2), four equivalent Ta(3), one Au(1), and one Au(2) atom. is represented by the CIF card [CIF]
data_Ta2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.201
_cell_length_b   10.068
_cell_length_c   10.068
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   527.123
_cell_formula_units_Z   10
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
  Ta  Ta0  1  0.500  0.104  0.896  1.0
  Ta  Ta1  1  0.500  0.896  0.104  1.0
  Ta  Ta2  1  0.000  0.396  0.396  1.0
  Ta  Ta3  1  0.000  0.604  0.604  1.0
  Ta  Ta4  1  0.500  0.371  0.965  1.0
  Ta  Ta5  1  0.500  0.629  0.035  1.0
  Ta  Ta6  1  0.000  0.129  0.465  1.0
  Ta  Ta7  1  0.000  0.871  0.535  1.0
  Ta  Ta8  1  0.500  0.965  0.371  1.0
  Ta  Ta9  1  0.500  0.035  0.629  1.0
  Ta  Ta10  1  0.000  0.465  0.129  1.0
  Ta  Ta11  1  0.000  0.535  0.871  1.0
  Ta  Ta12  1  0.250  0.317  0.683  1.0
  Ta  Ta13  1  0.250  0.683  0.317  1.0
  Ta  Ta14  1  0.750  0.183  0.183  1.0
  Ta  Ta15  1  0.750  0.817  0.817  1.0
  Ta  Ta16  1  0.750  0.683  0.317  1.0
  Ta  Ta17  1  0.750  0.317  0.683  1.0
  Ta  Ta18  1  0.250  0.817  0.817  1.0
  Ta  Ta19  1  0.250  0.183  0.183  1.0
  Au  Au20  1  0.500  0.500  0.500  1.0
  Au  Au21  1  0.000  0.000  0.000  1.0
  Au  Au22  1  0.500  0.436  0.233  1.0
  Au  Au23  1  0.500  0.564  0.767  1.0
  Au  Au24  1  0.000  0.064  0.733  1.0
  Au  Au25  1  0.000  0.936  0.267  1.0
  Au  Au26  1  0.500  0.233  0.436  1.0
  Au  Au27  1  0.500  0.767  0.564  1.0
  Au  Au28  1  0.000  0.733  0.064  1.0
  Au  Au29  1  0.000  0.267  0.936  1.0
[/CIF]
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The crystal structure described by AuTa2 crystallizes in the tetragonal P4_2/mnm space group. There are three inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 15-coordinate geometry to one Ta(1), two equivalent Ta(2), six equivalent Ta(3), two equivalent Au(1), and four equivalent Au(2) atoms. In the second Ta site, Ta(2) is bonded in a 4-coordinate geometry to one Ta(1) and four equivalent Au(2) atoms. In the third Ta site, Ta(3) is bonded in a 7-coordinate geometry to two equivalent Ta(3), three equivalent Ta(1), one Au(1), and four equivalent Au(2) atoms. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded to four equivalent Ta(1), four equivalent Ta(3), and four equivalent Au(2) atoms to form distorted edge-sharing AuTa8Au4 cuboctahedra. In the second Au site, Au(2) is bonded in a 12-coordinate geometry to two equivalent Ta(1), four equivalent Ta(2), four equivalent Ta(3), one Au(1), and one Au(2) atom. is represented by the CIF card [CIF]
data_Ta2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.201
_cell_length_b   10.068
_cell_length_c   10.068
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   527.123
_cell_formula_units_Z   10
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
  Ta  Ta0  1  0.500  0.104  0.896  1.0
  Ta  Ta1  1  0.500  0.896  0.104  1.0
  Ta  Ta2  1  0.000  0.396  0.396  1.0
  Ta  Ta3  1  0.000  0.604  0.604  1.0
  Ta  Ta4  1  0.500  0.371  0.965  1.0
  Ta  Ta5  1  0.500  0.629  0.035  1.0
  Ta  Ta6  1  0.000  0.129  0.465  1.0
  Ta  Ta7  1  0.000  0.871  0.535  1.0
  Ta  Ta8  1  0.500  0.965  0.371  1.0
  Ta  Ta9  1  0.500  0.035  0.629  1.0
  Ta  Ta10  1  0.000  0.465  0.129  1.0
  Ta  Ta11  1  0.000  0.535  0.871  1.0
  Ta  Ta12  1  0.250  0.317  0.683  1.0
  Ta  Ta13  1  0.250  0.683  0.317  1.0
  Ta  Ta14  1  0.750  0.183  0.183  1.0
  Ta  Ta15  1  0.750  0.817  0.817  1.0
  Ta  Ta16  1  0.750  0.683  0.317  1.0
  Ta  Ta17  1  0.750  0.317  0.683  1.0
  Ta  Ta18  1  0.250  0.817  0.817  1.0
  Ta  Ta19  1  0.250  0.183  0.183  1.0
  Au  Au20  1  0.500  0.500  0.500  1.0
  Au  Au21  1  0.000  0.000  0.000  1.0
  Au  Au22  1  0.500  0.436  0.233  1.0
  Au  Au23  1  0.500  0.564  0.767  1.0
  Au  Au24  1  0.000  0.064  0.733  1.0
  Au  Au25  1  0.000  0.936  0.267  1.0
  Au  Au26  1  0.500  0.233  0.436  1.0
  Au  Au27  1  0.500  0.767  0.564  1.0
  Au  Au28  1  0.000  0.733  0.064  1.0
  Au  Au29  1  0.000  0.267  0.936  1.0
[/CIF]
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