data_CuTcSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.66
_cell_length_b   4.66
_cell_length_c   3.27
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuTcSn2
_chemical_formula_sum   'Cu1 Tc1 Sn2'
_cell_volume   70.85
_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  0.33  0.33  0.0  1.0
  Sn  Sn1  1  0.0  0.33  0.63  1.0
  Sn  Sn2  1  0.33  0.0  0.63  1.0

data_CuTcSn2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.59
_cell_length_b   6.59
_cell_length_c   3.27
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CuTcSn2
_chemical_formula_sum   'Cu2 Tc2 Sn4'
_cell_volume   141.71
_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
  Tc  Tc1  2  0.33  0.0  -0.0  1.0
  Sn  Sn2  4  0.16  0.16  0.63  1.0

Cu Tc Sn Sn
Cu Tc Sn Sn 0 3 o o - 0 2 o o - 0 1 o o o 1 2 o o - 1 3 o o - 2 3 o o o 
TcCuSn2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two TcCuSn2 clusters. Tc(1) is bonded in a 2-coordinate geometry to two equivalent Sn(1) atoms. Both Tc(1)-Sn(1) bond lengths are 1.94 Å. Cu(1) is bonded in a 2-coordinate geometry to two equivalent Sn(1) atoms. Both Cu(1)-Sn(1) bond lengths are 1.94 Å. Sn(1) is bonded in a 2-coordinate geometry to one Tc(1) and one Cu(1) atom.