The compound described by Eu2Pd3AuSi4 crystallizes in the tetragonal P-4m2 space group. Eu(1) is bonded in a 16-coordinate geometry to two equivalent Pd(1), two equivalent Pd(2), two equivalent Pd(3), two equivalent Au(1), four equivalent Si(1), and four equivalent Si(2) atoms. There are three inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 4-coordinate geometry to four equivalent Eu(1) and four equivalent Si(2) atoms. In the second Pd site, Pd(2) 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 four equivalent Pd(2)Eu4Si4Au4 cuboctahedra, faces with four equivalent Pd(2)Eu4Si4Au4 cuboctahedra, and faces with four equivalent Au(1)Eu4Si4Pd4 tetrahedra. In the third Pd site, Pd(3) is bonded in a 4-coordinate geometry to four equivalent Eu(1) and four equivalent Si(2) atoms. Au(1) is bonded to four equivalent Eu(1), four equivalent Pd(2), and four equivalent Si(1) atoms to form distorted AuEu4Si4Pd4 tetrahedra that share corners with four equivalent Au(1)Eu4Si4Pd4 tetrahedra, faces with four equivalent Pd(2)Eu4Si4Au4 cuboctahedra, and faces with four equivalent Au(1)Eu4Si4Pd4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four equivalent Eu(1), two equivalent Pd(2), two equivalent Au(1), and one Si(2) atom. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to four equivalent Eu(1), two equivalent Pd(1), two equivalent Pd(3), and one Si(1) atom. is represented by the CIF file [CIF]
data_Eu2Si4Pd3Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.282
_cell_length_b   4.282
_cell_length_c   9.946
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   182.375
_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  0.500  0.000  0.748  1.0
  Eu  Eu1  1  0.000  0.500  0.252  1.0
  Si  Si2  1  0.000  0.500  0.864  1.0
  Si  Si3  1  0.500  0.000  0.373  1.0
  Si  Si4  1  0.500  0.000  0.136  1.0
  Si  Si5  1  0.000  0.500  0.627  1.0
  Pd  Pd6  1  0.000  0.000  0.500  1.0
  Pd  Pd7  1  0.000  0.000  0.000  1.0
  Pd  Pd8  1  0.500  0.500  0.500  1.0
  Au  Au9  1  0.500  0.500  0.000  1.0
[/CIF]
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The compound described by Eu2Pd3AuSi4 crystallizes in the tetragonal P-4m2 space group. Eu(1) is bonded in a 16-coordinate geometry to two equivalent Pd(1), two equivalent Pd(2), two equivalent Pd(3), two equivalent Au(1), four equivalent Si(1), and four equivalent Si(2) atoms. There are three inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 4-coordinate geometry to four equivalent Eu(1) and four equivalent Si(2) atoms. In the second Pd site, Pd(2) 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 four equivalent Pd(2)Eu4Si4Au4 cuboctahedra, faces with four equivalent Pd(2)Eu4Si4Au4 cuboctahedra, and faces with four equivalent Au(1)Eu4Si4Pd4 tetrahedra. In the third Pd site, Pd(3) is bonded in a 4-coordinate geometry to four equivalent Eu(1) and four equivalent Si(2) atoms. Au(1) is bonded to four equivalent Eu(1), four equivalent Pd(2), and four equivalent Si(1) atoms to form distorted AuEu4Si4Pd4 tetrahedra that share corners with four equivalent Au(1)Eu4Si4Pd4 tetrahedra, faces with four equivalent Pd(2)Eu4Si4Au4 cuboctahedra, and faces with four equivalent Au(1)Eu4Si4Pd4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four equivalent Eu(1), two equivalent Pd(2), two equivalent Au(1), and one Si(2) atom. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to four equivalent Eu(1), two equivalent Pd(1), two equivalent Pd(3), and one Si(1) atom. is represented by the CIF file [CIF]
data_Eu2Si4Pd3Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.282
_cell_length_b   4.282
_cell_length_c   9.946
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   182.375
_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  0.500  0.000  0.748  1.0
  Eu  Eu1  1  0.000  0.500  0.252  1.0
  Si  Si2  1  0.000  0.500  0.864  1.0
  Si  Si3  1  0.500  0.000  0.373  1.0
  Si  Si4  1  0.500  0.000  0.136  1.0
  Si  Si5  1  0.000  0.500  0.627  1.0
  Pd  Pd6  1  0.000  0.000  0.500  1.0
  Pd  Pd7  1  0.000  0.000  0.000  1.0
  Pd  Pd8  1  0.500  0.500  0.500  1.0
  Au  Au9  1  0.500  0.500  0.000  1.0
[/CIF]
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