The structure described by SmSn2 is Zirconium Disilicide-like structured and crystallizes in the orthorhombic Cmmm space group. Sm(1) is bonded in a 10-coordinate geometry to two equivalent Sn(1), two equivalent Sn(2), and six equivalent Sn(3) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted square co-planar geometry to four equivalent Sm(1) and four equivalent Sn(2) atoms. In the second Sn site, Sn(2) is bonded in a distorted square co-planar geometry to four equivalent Sm(1) and four equivalent Sn(1) atoms. In the third Sn site, Sn(3) is bonded in a 8-coordinate geometry to six equivalent Sm(1) and two equivalent Sn(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SmSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.440
_cell_length_b   4.529
_cell_length_c   8.415
_cell_angle_alpha   90.000
_cell_angle_beta   105.298
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   163.222
_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  0.144  0.000  0.288  1.0
  Sm  Sm1  1  0.856  0.000  0.712  1.0
  Sn  Sn2  1  0.500  0.000  0.000  1.0
  Sn  Sn3  1  0.000  0.500  0.000  1.0
  Sn  Sn4  1  0.312  0.500  0.625  1.0
  Sn  Sn5  1  0.688  0.500  0.375  1.0
[/CIF]
.
The structure described by SmSn2 is Zirconium Disilicide-like structured and crystallizes in the orthorhombic Cmmm space group. Sm(1) is bonded in a 10-coordinate geometry to two equivalent Sn(1), two equivalent Sn(2), and six equivalent Sn(3) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted square co-planar geometry to four equivalent Sm(1) and four equivalent Sn(2) atoms. In the second Sn site, Sn(2) is bonded in a distorted square co-planar geometry to four equivalent Sm(1) and four equivalent Sn(1) atoms. In the third Sn site, Sn(3) is bonded in a 8-coordinate geometry to six equivalent Sm(1) and two equivalent Sn(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SmSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.440
_cell_length_b   4.529
_cell_length_c   8.415
_cell_angle_alpha   90.000
_cell_angle_beta   105.298
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   163.222
_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  0.144  0.000  0.288  1.0
  Sm  Sm1  1  0.856  0.000  0.712  1.0
  Sn  Sn2  1  0.500  0.000  0.000  1.0
  Sn  Sn3  1  0.000  0.500  0.000  1.0
  Sn  Sn4  1  0.312  0.500  0.625  1.0
  Sn  Sn5  1  0.688  0.500  0.375  1.0
[/CIF]
.