data_CuTcSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.68
_cell_length_b   4.68
_cell_length_c   5.25
_cell_angle_alpha   102.36
_cell_angle_beta   102.36
_cell_angle_gamma   41.7
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuTcSn2
_chemical_formula_sum   'Cu1 Tc1 Sn2'
_cell_volume   74.55
_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  Cu0  1  0.0  0.0  0.0  1.0
  Tc  Tc3  1  0.78  0.0  0.55  1.0
  Sn  Sn1  1  0.27  0.0  0.78  1.0
  Sn  Sn2  1  0.29  0.0  0.32  1.0

data_CuTcSn2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.33
_cell_length_b   4.68
_cell_length_c   5.25
_cell_angle_alpha   102.36
_cell_angle_beta   90.0
_cell_angle_gamma   110.85
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuTcSn2
_chemical_formula_sum   'Cu1 Tc1 Sn2'
_cell_volume   74.55
_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  Cu0  1  0.0  0.0  0.0  1.0
  Tc  Tc1  1  0.0  0.22  0.45  1.0
  Sn  Sn2  1  0.0  0.71  0.68  1.0
  Sn  Sn3  1  0.0  0.73  0.22  1.0

Cu Tc Sn Sn
Cu Tc Sn Sn 0 2 o o - 0 3 o o o 0 1 - o - 1 3 o o o 1 2 + o o 
TcCuSn2 crystallizes in the triclinic P1 space group. Tc(1) is bonded in a 10-coordinate geometry to two equivalent Tc(1), two equivalent Cu(1), three equivalent Sn(1), and three equivalent Sn(2) atoms. Both Tc(1)-Tc(1) bond lengths are 3.33 Å. There is one shorter (2.35 Å) and one longer (3.29 Å) Tc(1)-Cu(1) bond length. There are a spread of Tc(1)-Sn(1) bond distances ranging from 2.35-3.35 Å. There are a spread of Tc(1)-Sn(2) bond distances ranging from 2.35-3.35 Å. Cu(1) is bonded in a distorted L-shaped geometry to two equivalent Tc(1), one Sn(1), and one Sn(2) atom. The Cu(1)-Sn(1) bond length is 1.85 Å. The Cu(1)-Sn(2) bond length is 1.92 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 1-coordinate geometry to three equivalent Tc(1) and one Cu(1) atom. In the second Sn site, Sn(2) is bonded in a 2-coordinate geometry to three equivalent Tc(1) and one Cu(1) atom.