The structure described by Sm2Sb crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 4-coordinate geometry to four equivalent Sb(1) atoms. In the second Sm site, Sm(2) is bonded to five equivalent Sb(1) atoms to form a mixture of distorted edge and corner-sharing SmSb5 square pyramids. Sb(1) is bonded in a 9-coordinate geometry to four equivalent Sm(1) and five equivalent Sm(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm2Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.315
_cell_length_b   9.315
_cell_length_c   9.315
_cell_angle_alpha   152.019
_cell_angle_beta   152.019
_cell_angle_gamma   39.985
_symmetry_Int_Tables_number   1
_cell_volume   177.603
_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
  Sm  Sm0  1  0.000  0.500  0.500  1.0
  Sm  Sm1  1  0.500  0.000  0.500  1.0
  Sm  Sm2  1  0.821  0.821  0.000  1.0
  Sm  Sm3  1  0.179  0.179  0.000  1.0
  Sb  Sb4  1  0.639  0.639  0.000  1.0
  Sb  Sb5  1  0.361  0.361  0.000  1.0
[/CIF]
.
The structure described by Sm2Sb crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 4-coordinate geometry to four equivalent Sb(1) atoms. In the second Sm site, Sm(2) is bonded to five equivalent Sb(1) atoms to form a mixture of distorted edge and corner-sharing SmSb5 square pyramids. Sb(1) is bonded in a 9-coordinate geometry to four equivalent Sm(1) and five equivalent Sm(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm2Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.315
_cell_length_b   9.315
_cell_length_c   9.315
_cell_angle_alpha   152.019
_cell_angle_beta   152.019
_cell_angle_gamma   39.985
_symmetry_Int_Tables_number   1
_cell_volume   177.603
_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
  Sm  Sm0  1  0.000  0.500  0.500  1.0
  Sm  Sm1  1  0.500  0.000  0.500  1.0
  Sm  Sm2  1  0.821  0.821  0.000  1.0
  Sm  Sm3  1  0.179  0.179  0.000  1.0
  Sb  Sb4  1  0.639  0.639  0.000  1.0
  Sb  Sb5  1  0.361  0.361  0.000  1.0
[/CIF]
.