The material described by SmPd3As2 crystallizes in the monoclinic C2/m space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 17-coordinate geometry to one Pd(3), two equivalent Pd(1), two equivalent Pd(4), three equivalent Pd(2), three equivalent Pd(5), two equivalent As(1), two equivalent As(2), and two equivalent As(3) atoms. In the second Sm site, Sm(2) is bonded to two equivalent Pd(1), four equivalent Pd(3), two equivalent As(1), and four equivalent As(2) atoms to form SmAs6Pd6 cuboctahedra that share edges with four equivalent Pd(4)Sm4As4Pd4 cuboctahedra and faces with two equivalent Sm(2)As6Pd6 cuboctahedra. There are five inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 12-coordinate geometry to one Sm(2), two equivalent Sm(1), one Pd(2), two equivalent Pd(3), two equivalent Pd(4), two equivalent As(2), and two equivalent As(3) atoms. In the second Pd site, Pd(2) is bonded in a 12-coordinate geometry to three equivalent Sm(1), one Pd(1), two equivalent Pd(2), two equivalent Pd(3), one As(1), and three equivalent As(3) atoms. In the third Pd site, Pd(3) is bonded in a 12-coordinate geometry to one Sm(1), two equivalent Sm(2), one Pd(5), two equivalent Pd(1), two equivalent Pd(2), one As(2), one As(3), and two equivalent As(1) atoms. In the fourth Pd site, Pd(4) is bonded to four equivalent Sm(1), four equivalent Pd(1), two equivalent As(2), and two equivalent As(3) atoms to form distorted PdSm4As4Pd4 cuboctahedra that share edges with four equivalent Sm(2)As6Pd6 cuboctahedra and faces with two equivalent Pd(4)Sm4As4Pd4 cuboctahedra. In the fifth Pd site, Pd(5) is bonded in a 6-coordinate geometry to three equivalent Sm(1), one Pd(3), one As(2), and three equivalent As(1) atoms. There are three inequivalent As sites. In the first As site, As(1) is bonded in a 9-coordinate geometry to one Sm(2), two equivalent Sm(1), one Pd(2), two equivalent Pd(3), and three equivalent Pd(5) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to two equivalent Sm(1), two equivalent Sm(2), one Pd(3), one Pd(4), one Pd(5), and two equivalent Pd(1) atoms. In the third As site, As(3) is bonded in a 9-coordinate geometry to two equivalent Sm(1), one Pd(3), one Pd(4), two equivalent Pd(1), and three equivalent Pd(2) atoms. is represented by the CIF file [CIF]
data_SmAs2Pd3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.569
_cell_length_b   8.569
_cell_length_c   10.034
_cell_angle_alpha   72.775
_cell_angle_beta   72.775
_cell_angle_gamma   27.597
_symmetry_Int_Tables_number   1
_cell_volume   325.049
_cell_formula_units_Z   3
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
  Sm  Sm0  1  0.846  0.846  0.701  1.0
  Sm  Sm1  1  0.154  0.154  0.299  1.0
  Sm  Sm2  1  0.000  0.000  0.000  1.0
  As  As3  1  0.801  0.801  0.131  1.0
  As  As4  1  0.199  0.199  0.869  1.0
  As  As5  1  0.539  0.539  0.213  1.0
  As  As6  1  0.461  0.461  0.787  1.0
  As  As7  1  0.636  0.636  0.546  1.0
  As  As8  1  0.364  0.364  0.454  1.0
  Pd  Pd9  1  0.957  0.957  0.332  1.0
  Pd  Pd10  1  0.043  0.043  0.668  1.0
  Pd  Pd11  1  0.778  0.778  0.390  1.0
  Pd  Pd12  1  0.222  0.222  0.610  1.0
  Pd  Pd13  1  0.377  0.377  0.200  1.0
  Pd  Pd14  1  0.623  0.623  0.800  1.0
  Pd  Pd15  1  0.500  0.500  0.500  1.0
  Pd  Pd16  1  0.679  0.679  0.034  1.0
  Pd  Pd17  1  0.321  0.321  0.966  1.0
[/CIF]
.
The material described by SmPd3As2 crystallizes in the monoclinic C2/m space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 17-coordinate geometry to one Pd(3), two equivalent Pd(1), two equivalent Pd(4), three equivalent Pd(2), three equivalent Pd(5), two equivalent As(1), two equivalent As(2), and two equivalent As(3) atoms. In the second Sm site, Sm(2) is bonded to two equivalent Pd(1), four equivalent Pd(3), two equivalent As(1), and four equivalent As(2) atoms to form SmAs6Pd6 cuboctahedra that share edges with four equivalent Pd(4)Sm4As4Pd4 cuboctahedra and faces with two equivalent Sm(2)As6Pd6 cuboctahedra. There are five inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 12-coordinate geometry to one Sm(2), two equivalent Sm(1), one Pd(2), two equivalent Pd(3), two equivalent Pd(4), two equivalent As(2), and two equivalent As(3) atoms. In the second Pd site, Pd(2) is bonded in a 12-coordinate geometry to three equivalent Sm(1), one Pd(1), two equivalent Pd(2), two equivalent Pd(3), one As(1), and three equivalent As(3) atoms. In the third Pd site, Pd(3) is bonded in a 12-coordinate geometry to one Sm(1), two equivalent Sm(2), one Pd(5), two equivalent Pd(1), two equivalent Pd(2), one As(2), one As(3), and two equivalent As(1) atoms. In the fourth Pd site, Pd(4) is bonded to four equivalent Sm(1), four equivalent Pd(1), two equivalent As(2), and two equivalent As(3) atoms to form distorted PdSm4As4Pd4 cuboctahedra that share edges with four equivalent Sm(2)As6Pd6 cuboctahedra and faces with two equivalent Pd(4)Sm4As4Pd4 cuboctahedra. In the fifth Pd site, Pd(5) is bonded in a 6-coordinate geometry to three equivalent Sm(1), one Pd(3), one As(2), and three equivalent As(1) atoms. There are three inequivalent As sites. In the first As site, As(1) is bonded in a 9-coordinate geometry to one Sm(2), two equivalent Sm(1), one Pd(2), two equivalent Pd(3), and three equivalent Pd(5) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to two equivalent Sm(1), two equivalent Sm(2), one Pd(3), one Pd(4), one Pd(5), and two equivalent Pd(1) atoms. In the third As site, As(3) is bonded in a 9-coordinate geometry to two equivalent Sm(1), one Pd(3), one Pd(4), two equivalent Pd(1), and three equivalent Pd(2) atoms. is represented by the CIF file [CIF]
data_SmAs2Pd3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.569
_cell_length_b   8.569
_cell_length_c   10.034
_cell_angle_alpha   72.775
_cell_angle_beta   72.775
_cell_angle_gamma   27.597
_symmetry_Int_Tables_number   1
_cell_volume   325.049
_cell_formula_units_Z   3
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
  Sm  Sm0  1  0.846  0.846  0.701  1.0
  Sm  Sm1  1  0.154  0.154  0.299  1.0
  Sm  Sm2  1  0.000  0.000  0.000  1.0
  As  As3  1  0.801  0.801  0.131  1.0
  As  As4  1  0.199  0.199  0.869  1.0
  As  As5  1  0.539  0.539  0.213  1.0
  As  As6  1  0.461  0.461  0.787  1.0
  As  As7  1  0.636  0.636  0.546  1.0
  As  As8  1  0.364  0.364  0.454  1.0
  Pd  Pd9  1  0.957  0.957  0.332  1.0
  Pd  Pd10  1  0.043  0.043  0.668  1.0
  Pd  Pd11  1  0.778  0.778  0.390  1.0
  Pd  Pd12  1  0.222  0.222  0.610  1.0
  Pd  Pd13  1  0.377  0.377  0.200  1.0
  Pd  Pd14  1  0.623  0.623  0.800  1.0
  Pd  Pd15  1  0.500  0.500  0.500  1.0
  Pd  Pd16  1  0.679  0.679  0.034  1.0
  Pd  Pd17  1  0.321  0.321  0.966  1.0
[/CIF]
.