The crystal structure described by Sm3Pr is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Sm(1) is bonded to eight equivalent Sm(1) and four equivalent Pr(1) atoms to form SmPr4Sm8 cuboctahedra that share corners with four equivalent Pr(1)Sm12 cuboctahedra, corners with fourteen equivalent Sm(1)Pr4Sm8 cuboctahedra, edges with six equivalent Pr(1)Sm12 cuboctahedra, edges with twelve equivalent Sm(1)Pr4Sm8 cuboctahedra, faces with four equivalent Pr(1)Sm12 cuboctahedra, and faces with sixteen equivalent Sm(1)Pr4Sm8 cuboctahedra. Pr(1) is bonded to twelve equivalent Sm(1) atoms to form PrSm12 cuboctahedra that share corners with six equivalent Pr(1)Sm12 cuboctahedra, corners with twelve equivalent Sm(1)Pr4Sm8 cuboctahedra, edges with eighteen equivalent Sm(1)Pr4Sm8 cuboctahedra, faces with eight equivalent Pr(1)Sm12 cuboctahedra, and faces with twelve equivalent Sm(1)Pr4Sm8 cuboctahedra. is represented by the CIF card [CIF]
data_PrSm3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.448
_cell_length_b   7.448
_cell_length_c   5.839
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   280.481
_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
  Pr  Pr0  1  0.333  0.667  0.750  1.0
  Pr  Pr1  1  0.667  0.333  0.250  1.0
  Sm  Sm2  1  0.166  0.333  0.250  1.0
  Sm  Sm3  1  0.667  0.834  0.250  1.0
  Sm  Sm4  1  0.166  0.834  0.250  1.0
  Sm  Sm5  1  0.834  0.667  0.750  1.0
  Sm  Sm6  1  0.333  0.166  0.750  1.0
  Sm  Sm7  1  0.834  0.166  0.750  1.0
[/CIF]
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The crystal structure described by Sm3Pr is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Sm(1) is bonded to eight equivalent Sm(1) and four equivalent Pr(1) atoms to form SmPr4Sm8 cuboctahedra that share corners with four equivalent Pr(1)Sm12 cuboctahedra, corners with fourteen equivalent Sm(1)Pr4Sm8 cuboctahedra, edges with six equivalent Pr(1)Sm12 cuboctahedra, edges with twelve equivalent Sm(1)Pr4Sm8 cuboctahedra, faces with four equivalent Pr(1)Sm12 cuboctahedra, and faces with sixteen equivalent Sm(1)Pr4Sm8 cuboctahedra. Pr(1) is bonded to twelve equivalent Sm(1) atoms to form PrSm12 cuboctahedra that share corners with six equivalent Pr(1)Sm12 cuboctahedra, corners with twelve equivalent Sm(1)Pr4Sm8 cuboctahedra, edges with eighteen equivalent Sm(1)Pr4Sm8 cuboctahedra, faces with eight equivalent Pr(1)Sm12 cuboctahedra, and faces with twelve equivalent Sm(1)Pr4Sm8 cuboctahedra. is represented by the CIF card [CIF]
data_PrSm3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.448
_cell_length_b   7.448
_cell_length_c   5.839
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   280.481
_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
  Pr  Pr0  1  0.333  0.667  0.750  1.0
  Pr  Pr1  1  0.667  0.333  0.250  1.0
  Sm  Sm2  1  0.166  0.333  0.250  1.0
  Sm  Sm3  1  0.667  0.834  0.250  1.0
  Sm  Sm4  1  0.166  0.834  0.250  1.0
  Sm  Sm5  1  0.834  0.667  0.750  1.0
  Sm  Sm6  1  0.333  0.166  0.750  1.0
  Sm  Sm7  1  0.834  0.166  0.750  1.0
[/CIF]
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