The structure described by EuPdAuSi2 crystallizes in the tetragonal I-4m2 space group. Eu(1) is bonded in a 16-coordinate geometry to four equivalent Pd(1), four equivalent Au(1), and eight equivalent Si(1) atoms. Pd(1) is bonded to four equivalent Eu(1), four equivalent Au(1), and four equivalent Si(1) atoms to form distorted PdEu4Si4Au4 cuboctahedra that share corners with twelve equivalent Pd(1)Eu4Si4Au4 cuboctahedra, corners with four equivalent Au(1)Eu4Si4Pd4 tetrahedra, edges with two equivalent Au(1)Eu4Si4Pd4 tetrahedra, faces with four equivalent Pd(1)Eu4Si4Au4 cuboctahedra, and faces with four equivalent Au(1)Eu4Si4Pd4 tetrahedra. Au(1) is bonded to four equivalent Eu(1), four equivalent Pd(1), and four equivalent Si(1) atoms to form distorted AuEu4Si4Pd4 tetrahedra that share corners with four equivalent Pd(1)Eu4Si4Au4 cuboctahedra, corners with twelve equivalent Au(1)Eu4Si4Pd4 tetrahedra, edges with two equivalent Pd(1)Eu4Si4Au4 cuboctahedra, faces with four equivalent Pd(1)Eu4Si4Au4 cuboctahedra, and faces with four equivalent Au(1)Eu4Si4Pd4 tetrahedra. Si(1) is bonded in a 9-coordinate geometry to four equivalent Eu(1), two equivalent Pd(1), two equivalent Au(1), and one Si(1) atom. is represented by the CIF file [CIF]
data_EuSi2PdAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.900
_cell_length_b   5.900
_cell_length_c   5.900
_cell_angle_alpha   136.720
_cell_angle_beta   136.720
_cell_angle_gamma   62.868
_symmetry_Int_Tables_number   1
_cell_volume   95.334
_cell_formula_units_Z   1
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
  Eu  Eu0  1  0.000  0.000  0.000  1.0
  Si  Si1  1  0.618  0.618  0.000  1.0
  Si  Si2  1  0.382  0.382  0.000  1.0
  Pd  Pd3  1  0.750  0.250  0.500  1.0
  Au  Au4  1  0.250  0.750  0.500  1.0
[/CIF]
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The structure described by EuPdAuSi2 crystallizes in the tetragonal I-4m2 space group. Eu(1) is bonded in a 16-coordinate geometry to four equivalent Pd(1), four equivalent Au(1), and eight equivalent Si(1) atoms. Pd(1) is bonded to four equivalent Eu(1), four equivalent Au(1), and four equivalent Si(1) atoms to form distorted PdEu4Si4Au4 cuboctahedra that share corners with twelve equivalent Pd(1)Eu4Si4Au4 cuboctahedra, corners with four equivalent Au(1)Eu4Si4Pd4 tetrahedra, edges with two equivalent Au(1)Eu4Si4Pd4 tetrahedra, faces with four equivalent Pd(1)Eu4Si4Au4 cuboctahedra, and faces with four equivalent Au(1)Eu4Si4Pd4 tetrahedra. Au(1) is bonded to four equivalent Eu(1), four equivalent Pd(1), and four equivalent Si(1) atoms to form distorted AuEu4Si4Pd4 tetrahedra that share corners with four equivalent Pd(1)Eu4Si4Au4 cuboctahedra, corners with twelve equivalent Au(1)Eu4Si4Pd4 tetrahedra, edges with two equivalent Pd(1)Eu4Si4Au4 cuboctahedra, faces with four equivalent Pd(1)Eu4Si4Au4 cuboctahedra, and faces with four equivalent Au(1)Eu4Si4Pd4 tetrahedra. Si(1) is bonded in a 9-coordinate geometry to four equivalent Eu(1), two equivalent Pd(1), two equivalent Au(1), and one Si(1) atom. is represented by the CIF file [CIF]
data_EuSi2PdAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.900
_cell_length_b   5.900
_cell_length_c   5.900
_cell_angle_alpha   136.720
_cell_angle_beta   136.720
_cell_angle_gamma   62.868
_symmetry_Int_Tables_number   1
_cell_volume   95.334
_cell_formula_units_Z   1
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
  Eu  Eu0  1  0.000  0.000  0.000  1.0
  Si  Si1  1  0.618  0.618  0.000  1.0
  Si  Si2  1  0.382  0.382  0.000  1.0
  Pd  Pd3  1  0.750  0.250  0.500  1.0
  Au  Au4  1  0.250  0.750  0.500  1.0
[/CIF]
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