data_FeCuSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.0
_cell_length_b   3.0
_cell_length_c   6.35
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   FeCuSn
_chemical_formula_sum   'Fe1 Cu1 Sn1'
_cell_volume   49.45
_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
  Fe  Fe1  1  0.0  0.0  0.01  1.0
  Cu  Cu0  1  1.0  0.73  0.12  1.0
  Sn  Sn2  1  0.5  0.87  0.22  1.0

data_FeCuSn
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.0
_cell_length_b   3.0
_cell_length_c   6.35
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   FeCuSn
_chemical_formula_sum   'Fe1 Cu1 Sn1'
_cell_volume   49.45
_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
  Fe  Fe0  1  0.0  0.0  0.01  1.0
  Cu  Cu1  1  1.0  0.73  0.12  1.0
  Sn  Sn2  1  0.5  0.87  0.22  1.0

Fe Cu Sn
FeCuSn crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one FeCuSn cluster. Fe(1) is bonded in a distorted single-bond geometry to one Cu(1) atom. The Fe(1)-Cu(1) bond length is 1.07 Å. Cu(1) is bonded in a 2-coordinate geometry to one Fe(1) and one Sn(1) atom. The Cu(1)-Sn(1) bond length is 1.46 Å. Sn(1) is bonded in a 1-coordinate geometry to one Cu(1) atom.