data_CuAg2Sn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.0
_cell_length_b   5.0
_cell_length_c   5.0
_cell_angle_alpha   129.51
_cell_angle_beta   129.51
_cell_angle_gamma   74.19
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuAg2Sn
_chemical_formula_sum   'Cu1 Ag2 Sn1'
_cell_volume   72.53
_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
  Cu  Cu2  1  0.0  0.0  0.0  1.0
  Ag  Ag0  1  0.0  0.0  0.99  1.0
  Ag  Ag1  1  0.13  0.0  0.99  1.0
  Sn  Sn3  1  0.0  0.13  0.99  1.0

data_CuAg2Sn
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.03
_cell_length_b   6.03
_cell_length_c   5.0
_cell_angle_alpha   90.0
_cell_angle_beta   127.09
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CuAg2Sn
_chemical_formula_sum   'Cu2 Ag4 Sn2'
_cell_volume   145.06
_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
  Cu  Cu0  2  0.0  0.0  0.0  1.0
  Ag  Ag1  2  0.0  0.0  0.14  1.0
  Ag  Ag2  2  0.01  0.0  0.01  1.0
  Sn  Sn3  2  0.14  0.0  0.14  1.0

Cu Ag Ag Sn
Cu Ag Ag Sn 0 1 o o - 0 2 o o - 0 3 o o - 1 2 o o o 1 3 o o o 
Ag2CuSn is Copper structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Ag2CuSn cluster. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a distorted single-bond geometry to one Ag(2), one Cu(1), and one Sn(1) atom. The Ag(1)-Ag(2) bond length is 0.64 Å. The Ag(1)-Cu(1) bond length is 0.06 Å. The Ag(1)-Sn(1) bond length is 0.64 Å. In the second Ag site, Ag(2) is bonded in a 2-coordinate geometry to one Ag(1) and one Sn(1) atom. The Ag(2)-Sn(1) bond length is 0.80 Å. Cu(1) is bonded in a single-bond geometry to one Ag(1) atom. Sn(1) is bonded in a distorted single-bond geometry to one Ag(1) and one Ag(2) atom.