data_Sc2Sn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.82
_cell_length_b   4.82
_cell_length_c   4.82
_cell_angle_alpha   119.36
_cell_angle_beta   119.36
_cell_angle_gamma   91.12
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sc2Sn
_chemical_formula_sum   'Sc2 Sn1'
_cell_volume   80.12
_cell_formula_units_Z   1
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
  Sc  Sc0  1  0.0  0.44  0.69  1.0
  Sc  Sc1  1  0.44  0.0  0.69  1.0
  Sn  Sn2  1  0.0  0.0  0.0  1.0

data_Sc2Sn
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.75
_cell_length_b   6.89
_cell_length_c   4.82
_cell_angle_alpha   90.0
_cell_angle_beta   134.44
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Sc2Sn
_chemical_formula_sum   'Sc4 Sn2'
_cell_volume   160.24
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Sc  Sc0  4  0.28  0.28  0.31  1.0
  Sn  Sn1  2  0.0  0.0  0.0  1.0

Sc Sc Sn
Sc2Sn is Fluorite structured and crystallizes in the monoclinic Cm space group. Sc(1) is bonded in a 1-coordinate geometry to three equivalent Sn(1) atoms. There are a spread of Sc(1)-Sn(1) bond distances ranging from 2.38-3.12 Å. Sn(1) is bonded in a 6-coordinate geometry to six equivalent Sc(1) atoms.