The structure described by Sm3La is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to eight Sm(1,1,1) and four equivalent La(1) atoms to form SmLa4Sm8 cuboctahedra that share corners with four equivalent La(1)Sm12 cuboctahedra; corners with fourteen Sm(1,1)La4Sm8 cuboctahedra; edges with six equivalent La(1)Sm12 cuboctahedra; edges with twelve Sm(1,1,1)La4Sm8 cuboctahedra; faces with four equivalent La(1)Sm12 cuboctahedra; and faces with sixteen Sm(1,1,1)La4Sm8 cuboctahedra. In the second Sm site, Sm(1) is bonded to eight equivalent Sm(1) and four equivalent La(1) atoms to form SmLa4Sm8 cuboctahedra that share corners with four equivalent La(1)Sm12 cuboctahedra; corners with fourteen Sm(1,1)La4Sm8 cuboctahedra; edges with six equivalent La(1)Sm12 cuboctahedra; edges with twelve equivalent Sm(1)La4Sm8 cuboctahedra; faces with four equivalent La(1)Sm12 cuboctahedra; and faces with sixteen Sm(1,1,1)La4Sm8 cuboctahedra. In the third Sm site, Sm(1) is bonded to eight equivalent Sm(1) and four equivalent La(1) atoms to form SmLa4Sm8 cuboctahedra that share corners with four equivalent La(1)Sm12 cuboctahedra; corners with fourteen Sm(1,1)La4Sm8 cuboctahedra; edges with six equivalent La(1)Sm12 cuboctahedra; edges with twelve equivalent Sm(1)La4Sm8 cuboctahedra; faces with four equivalent La(1)Sm12 cuboctahedra; and faces with sixteen Sm(1,1,1)La4Sm8 cuboctahedra. La(1) is bonded to twelve Sm(1,1,1) atoms to form LaSm12 cuboctahedra that share corners with six equivalent La(1)Sm12 cuboctahedra; corners with twelve Sm(1,1)La4Sm8 cuboctahedra; edges with eighteen Sm(1,1,1)La4Sm8 cuboctahedra; faces with eight equivalent La(1)Sm12 cuboctahedra; and faces with twelve Sm(1,1,1)La4Sm8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_LaSm3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.485
_cell_length_b   7.485
_cell_length_c   5.840
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   283.352
_cell_formula_units_Z   2
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
  La  La0  1  0.333  0.667  0.750  1.0
  La  La1  1  0.667  0.333  0.250  1.0
  Sm  Sm2  1  0.834  0.166  0.750  1.0
  Sm  Sm3  1  0.331  0.166  0.750  1.0
  Sm  Sm4  1  0.834  0.669  0.750  1.0
  Sm  Sm5  1  0.166  0.834  0.250  1.0
  Sm  Sm6  1  0.166  0.331  0.250  1.0
  Sm  Sm7  1  0.669  0.834  0.250  1.0
[/CIF]
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The structure described by Sm3La is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to eight Sm(1,1,1) and four equivalent La(1) atoms to form SmLa4Sm8 cuboctahedra that share corners with four equivalent La(1)Sm12 cuboctahedra; corners with fourteen Sm(1,1)La4Sm8 cuboctahedra; edges with six equivalent La(1)Sm12 cuboctahedra; edges with twelve Sm(1,1,1)La4Sm8 cuboctahedra; faces with four equivalent La(1)Sm12 cuboctahedra; and faces with sixteen Sm(1,1,1)La4Sm8 cuboctahedra. In the second Sm site, Sm(1) is bonded to eight equivalent Sm(1) and four equivalent La(1) atoms to form SmLa4Sm8 cuboctahedra that share corners with four equivalent La(1)Sm12 cuboctahedra; corners with fourteen Sm(1,1)La4Sm8 cuboctahedra; edges with six equivalent La(1)Sm12 cuboctahedra; edges with twelve equivalent Sm(1)La4Sm8 cuboctahedra; faces with four equivalent La(1)Sm12 cuboctahedra; and faces with sixteen Sm(1,1,1)La4Sm8 cuboctahedra. In the third Sm site, Sm(1) is bonded to eight equivalent Sm(1) and four equivalent La(1) atoms to form SmLa4Sm8 cuboctahedra that share corners with four equivalent La(1)Sm12 cuboctahedra; corners with fourteen Sm(1,1)La4Sm8 cuboctahedra; edges with six equivalent La(1)Sm12 cuboctahedra; edges with twelve equivalent Sm(1)La4Sm8 cuboctahedra; faces with four equivalent La(1)Sm12 cuboctahedra; and faces with sixteen Sm(1,1,1)La4Sm8 cuboctahedra. La(1) is bonded to twelve Sm(1,1,1) atoms to form LaSm12 cuboctahedra that share corners with six equivalent La(1)Sm12 cuboctahedra; corners with twelve Sm(1,1)La4Sm8 cuboctahedra; edges with eighteen Sm(1,1,1)La4Sm8 cuboctahedra; faces with eight equivalent La(1)Sm12 cuboctahedra; and faces with twelve Sm(1,1,1)La4Sm8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_LaSm3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.485
_cell_length_b   7.485
_cell_length_c   5.840
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   283.352
_cell_formula_units_Z   2
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
  La  La0  1  0.333  0.667  0.750  1.0
  La  La1  1  0.667  0.333  0.250  1.0
  Sm  Sm2  1  0.834  0.166  0.750  1.0
  Sm  Sm3  1  0.331  0.166  0.750  1.0
  Sm  Sm4  1  0.834  0.669  0.750  1.0
  Sm  Sm5  1  0.166  0.834  0.250  1.0
  Sm  Sm6  1  0.166  0.331  0.250  1.0
  Sm  Sm7  1  0.669  0.834  0.250  1.0
[/CIF]
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