data_ZnFeSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.45
_cell_length_b   8.45
_cell_length_c   8.45
_cell_angle_alpha   22.29
_cell_angle_beta   22.29
_cell_angle_gamma   22.29
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnFeSn2
_chemical_formula_sum   'Zn1 Fe1 Sn2'
_cell_volume   76.12
_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
  Zn  Zn3  1  0.0  0.0  0.35  1.0
  Fe  Fe0  1  0.0  0.0  0.0  1.0
  Sn  Sn1  1  0.0  0.0  0.4  1.0
  Sn  Sn2  1  0.0  0.0  0.31  1.0

data_ZnFeSn2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.66
_cell_length_b   3.27
_cell_length_c   8.45
_cell_angle_alpha   90.0
_cell_angle_beta   102.9
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   ZnFeSn2
_chemical_formula_sum   'Zn2 Fe2 Sn4'
_cell_volume   152.23
_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
  Zn  Zn0  2  0.0  0.0  0.65  1.0
  Fe  Fe1  2  0.0  0.0  0.0  1.0
  Sn  Sn2  2  0.0  0.0  0.6  1.0
  Sn  Sn3  2  0.0  0.0  0.69  1.0

Zn Fe Sn Sn
FeZnSn2 is Cyanogen Chloride-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two FeZnSn2 clusters. Fe(1) is bonded in a single-bond geometry to one Sn(2) atom. The Fe(1)-Sn(2) bond length is 2.58 Å. Zn(1) is bonded in a linear geometry to one Sn(1) and one Sn(2) atom. The Zn(1)-Sn(1) bond length is 0.41 Å. The Zn(1)-Sn(2) bond length is 0.41 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a single-bond geometry to one Zn(1) atom. In the second Sn site, Sn(2) is bonded in a single-bond geometry to one Fe(1) and one Zn(1) atom.