The structure described by Sm3Cd is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to four equivalent Sm(1), four equivalent Sm(2), and four equivalent Cd(1) atoms to form distorted SmSm8Cd4 cuboctahedra that share corners with twelve equivalent Sm(1)Sm8Cd4 cuboctahedra, edges with eight equivalent Sm(1)Sm8Cd4 cuboctahedra, edges with eight equivalent Sm(2)Sm8Cd4 cuboctahedra, edges with eight equivalent Cd(1)Sm12 cuboctahedra, faces with four equivalent Sm(2)Sm8Cd4 cuboctahedra, faces with four equivalent Cd(1)Sm12 cuboctahedra, and faces with ten equivalent Sm(1)Sm8Cd4 cuboctahedra. In the second Sm site, Sm(2) is bonded to eight equivalent Sm(1) and four equivalent Cd(1) atoms to form distorted SmSm8Cd4 cuboctahedra that share corners with four equivalent Sm(2)Sm8Cd4 cuboctahedra, corners with eight equivalent Cd(1)Sm12 cuboctahedra, edges with eight equivalent Sm(2)Sm8Cd4 cuboctahedra, edges with sixteen equivalent Sm(1)Sm8Cd4 cuboctahedra, faces with four equivalent Sm(2)Sm8Cd4 cuboctahedra, faces with six equivalent Cd(1)Sm12 cuboctahedra, and faces with eight equivalent Sm(1)Sm8Cd4 cuboctahedra. Cd(1) is bonded to four equivalent Sm(2) and eight equivalent Sm(1) atoms to form CdSm12 cuboctahedra that share corners with four equivalent Cd(1)Sm12 cuboctahedra, corners with eight equivalent Sm(2)Sm8Cd4 cuboctahedra, edges with eight equivalent Cd(1)Sm12 cuboctahedra, edges with sixteen equivalent Sm(1)Sm8Cd4 cuboctahedra, faces with four equivalent Cd(1)Sm12 cuboctahedra, faces with six equivalent Sm(2)Sm8Cd4 cuboctahedra, and faces with eight equivalent Sm(1)Sm8Cd4 cuboctahedra. is represented by the CIF card [CIF]
data_Sm3Cd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.075
_cell_length_b   6.075
_cell_length_c   6.075
_cell_angle_alpha   132.403
_cell_angle_beta   132.403
_cell_angle_gamma   69.594
_symmetry_Int_Tables_number   1
_cell_volume   119.908
_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
  Sm  Sm0  1  0.750  0.250  0.500  1.0
  Sm  Sm1  1  0.250  0.750  0.500  1.0
  Sm  Sm2  1  0.500  0.500  0.000  1.0
  Cd  Cd3  1  0.000  0.000  0.000  1.0
[/CIF]
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The structure described by Sm3Cd is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to four equivalent Sm(1), four equivalent Sm(2), and four equivalent Cd(1) atoms to form distorted SmSm8Cd4 cuboctahedra that share corners with twelve equivalent Sm(1)Sm8Cd4 cuboctahedra, edges with eight equivalent Sm(1)Sm8Cd4 cuboctahedra, edges with eight equivalent Sm(2)Sm8Cd4 cuboctahedra, edges with eight equivalent Cd(1)Sm12 cuboctahedra, faces with four equivalent Sm(2)Sm8Cd4 cuboctahedra, faces with four equivalent Cd(1)Sm12 cuboctahedra, and faces with ten equivalent Sm(1)Sm8Cd4 cuboctahedra. In the second Sm site, Sm(2) is bonded to eight equivalent Sm(1) and four equivalent Cd(1) atoms to form distorted SmSm8Cd4 cuboctahedra that share corners with four equivalent Sm(2)Sm8Cd4 cuboctahedra, corners with eight equivalent Cd(1)Sm12 cuboctahedra, edges with eight equivalent Sm(2)Sm8Cd4 cuboctahedra, edges with sixteen equivalent Sm(1)Sm8Cd4 cuboctahedra, faces with four equivalent Sm(2)Sm8Cd4 cuboctahedra, faces with six equivalent Cd(1)Sm12 cuboctahedra, and faces with eight equivalent Sm(1)Sm8Cd4 cuboctahedra. Cd(1) is bonded to four equivalent Sm(2) and eight equivalent Sm(1) atoms to form CdSm12 cuboctahedra that share corners with four equivalent Cd(1)Sm12 cuboctahedra, corners with eight equivalent Sm(2)Sm8Cd4 cuboctahedra, edges with eight equivalent Cd(1)Sm12 cuboctahedra, edges with sixteen equivalent Sm(1)Sm8Cd4 cuboctahedra, faces with four equivalent Cd(1)Sm12 cuboctahedra, faces with six equivalent Sm(2)Sm8Cd4 cuboctahedra, and faces with eight equivalent Sm(1)Sm8Cd4 cuboctahedra. is represented by the CIF card [CIF]
data_Sm3Cd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.075
_cell_length_b   6.075
_cell_length_c   6.075
_cell_angle_alpha   132.403
_cell_angle_beta   132.403
_cell_angle_gamma   69.594
_symmetry_Int_Tables_number   1
_cell_volume   119.908
_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
  Sm  Sm0  1  0.750  0.250  0.500  1.0
  Sm  Sm1  1  0.250  0.750  0.500  1.0
  Sm  Sm2  1  0.500  0.500  0.000  1.0
  Cd  Cd3  1  0.000  0.000  0.000  1.0
[/CIF]
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