The crystal structure described by YPdSi crystallizes in the orthorhombic Pmmn space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a 12-coordinate geometry to three equivalent Pd(1), three equivalent Pd(2), three equivalent Si(1), and three equivalent Si(2) atoms. In the second Y site, Y(2) is bonded in a 12-coordinate geometry to two equivalent Pd(2), four equivalent Pd(1), two equivalent Si(2), and four equivalent Si(1) atoms. In the third Y site, Y(3) is bonded in a 12-coordinate geometry to two equivalent Pd(1), four equivalent Pd(2), two equivalent Si(1), and four equivalent Si(2) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 10-coordinate geometry to one Y(3), two equivalent Y(2), three equivalent Y(1), one Pd(1), one Si(1), and two equivalent Si(2) atoms. In the second Pd site, Pd(2) is bonded in a 10-coordinate geometry to one Y(2), two equivalent Y(3), three equivalent Y(1), one Si(2), and three equivalent Si(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 10-coordinate geometry to one Y(3), two equivalent Y(2), three equivalent Y(1), one Pd(1), and three equivalent Pd(2) atoms. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to one Y(2), two equivalent Y(3), three equivalent Y(1), one Pd(2), two equivalent Pd(1), and one Si(2) atom. is represented by the CIF file [CIF]
data_YSiPd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.318
_cell_length_b   7.444
_cell_length_c   13.986
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   449.524
_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
  Y  Y0  1  0.500  0.790  0.748  1.0
  Y  Y1  1  0.000  0.210  0.752  1.0
  Y  Y2  1  0.500  0.790  0.252  1.0
  Y  Y3  1  0.000  0.210  0.248  1.0
  Y  Y4  1  0.500  0.708  0.000  1.0
  Y  Y5  1  0.000  0.292  0.500  1.0
  Y  Y6  1  0.500  0.700  0.500  1.0
  Y  Y7  1  0.000  0.300  0.000  1.0
  Si  Si8  1  0.500  0.408  0.646  1.0
  Si  Si9  1  0.000  0.592  0.854  1.0
  Si  Si10  1  0.500  0.408  0.354  1.0
  Si  Si11  1  0.000  0.592  0.146  1.0
  Si  Si12  1  0.500  0.091  0.092  1.0
  Si  Si13  1  0.000  0.909  0.408  1.0
  Si  Si14  1  0.500  0.091  0.908  1.0
  Si  Si15  1  0.000  0.909  0.592  1.0
  Pd  Pd16  1  0.500  0.076  0.608  1.0
  Pd  Pd17  1  0.000  0.924  0.892  1.0
  Pd  Pd18  1  0.500  0.076  0.392  1.0
  Pd  Pd19  1  0.000  0.924  0.108  1.0
  Pd  Pd20  1  0.500  0.418  0.156  1.0
  Pd  Pd21  1  0.000  0.582  0.344  1.0
  Pd  Pd22  1  0.500  0.418  0.844  1.0
  Pd  Pd23  1  0.000  0.582  0.656  1.0
[/CIF]
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The crystal structure described by YPdSi crystallizes in the orthorhombic Pmmn space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a 12-coordinate geometry to three equivalent Pd(1), three equivalent Pd(2), three equivalent Si(1), and three equivalent Si(2) atoms. In the second Y site, Y(2) is bonded in a 12-coordinate geometry to two equivalent Pd(2), four equivalent Pd(1), two equivalent Si(2), and four equivalent Si(1) atoms. In the third Y site, Y(3) is bonded in a 12-coordinate geometry to two equivalent Pd(1), four equivalent Pd(2), two equivalent Si(1), and four equivalent Si(2) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 10-coordinate geometry to one Y(3), two equivalent Y(2), three equivalent Y(1), one Pd(1), one Si(1), and two equivalent Si(2) atoms. In the second Pd site, Pd(2) is bonded in a 10-coordinate geometry to one Y(2), two equivalent Y(3), three equivalent Y(1), one Si(2), and three equivalent Si(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 10-coordinate geometry to one Y(3), two equivalent Y(2), three equivalent Y(1), one Pd(1), and three equivalent Pd(2) atoms. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to one Y(2), two equivalent Y(3), three equivalent Y(1), one Pd(2), two equivalent Pd(1), and one Si(2) atom. is represented by the CIF file [CIF]
data_YSiPd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.318
_cell_length_b   7.444
_cell_length_c   13.986
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   449.524
_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
  Y  Y0  1  0.500  0.790  0.748  1.0
  Y  Y1  1  0.000  0.210  0.752  1.0
  Y  Y2  1  0.500  0.790  0.252  1.0
  Y  Y3  1  0.000  0.210  0.248  1.0
  Y  Y4  1  0.500  0.708  0.000  1.0
  Y  Y5  1  0.000  0.292  0.500  1.0
  Y  Y6  1  0.500  0.700  0.500  1.0
  Y  Y7  1  0.000  0.300  0.000  1.0
  Si  Si8  1  0.500  0.408  0.646  1.0
  Si  Si9  1  0.000  0.592  0.854  1.0
  Si  Si10  1  0.500  0.408  0.354  1.0
  Si  Si11  1  0.000  0.592  0.146  1.0
  Si  Si12  1  0.500  0.091  0.092  1.0
  Si  Si13  1  0.000  0.909  0.408  1.0
  Si  Si14  1  0.500  0.091  0.908  1.0
  Si  Si15  1  0.000  0.909  0.592  1.0
  Pd  Pd16  1  0.500  0.076  0.608  1.0
  Pd  Pd17  1  0.000  0.924  0.892  1.0
  Pd  Pd18  1  0.500  0.076  0.392  1.0
  Pd  Pd19  1  0.000  0.924  0.108  1.0
  Pd  Pd20  1  0.500  0.418  0.156  1.0
  Pd  Pd21  1  0.000  0.582  0.344  1.0
  Pd  Pd22  1  0.500  0.418  0.844  1.0
  Pd  Pd23  1  0.000  0.582  0.656  1.0
[/CIF]
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