The material described by LaSn2 is Zirconium Disilicide-like structured and crystallizes in the orthorhombic Cmmm space group. La(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 La(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 La(1) and four equivalent Sn(1) atoms. In the third Sn site, Sn(3) is bonded in a 8-coordinate geometry to six equivalent La(1) and two equivalent Sn(3) atoms. is represented by the CIF file [CIF]
data_LaSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.686
_cell_length_b   8.686
_cell_length_c   4.683
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   149.819
_symmetry_Int_Tables_number   1
_cell_volume   177.598
_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  0.143  0.857  0.000  1.0
  La  La1  1  0.857  0.143  0.000  1.0
  Sn  Sn2  1  0.500  0.500  0.000  1.0
  Sn  Sn3  1  0.000  0.000  0.500  1.0
  Sn  Sn4  1  0.309  0.691  0.500  1.0
  Sn  Sn5  1  0.691  0.309  0.500  1.0
[/CIF]
.
The material described by LaSn2 is Zirconium Disilicide-like structured and crystallizes in the orthorhombic Cmmm space group. La(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 La(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 La(1) and four equivalent Sn(1) atoms. In the third Sn site, Sn(3) is bonded in a 8-coordinate geometry to six equivalent La(1) and two equivalent Sn(3) atoms. is represented by the CIF file [CIF]
data_LaSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.686
_cell_length_b   8.686
_cell_length_c   4.683
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   149.819
_symmetry_Int_Tables_number   1
_cell_volume   177.598
_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  0.143  0.857  0.000  1.0
  La  La1  1  0.857  0.143  0.000  1.0
  Sn  Sn2  1  0.500  0.500  0.000  1.0
  Sn  Sn3  1  0.000  0.000  0.500  1.0
  Sn  Sn4  1  0.309  0.691  0.500  1.0
  Sn  Sn5  1  0.691  0.309  0.500  1.0
[/CIF]
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