data_KCuTc2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.56
_cell_length_b   10.56
_cell_length_c   10.56
_cell_angle_alpha   17.27
_cell_angle_beta   17.27
_cell_angle_gamma   17.27
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KCuTc2
_chemical_formula_sum   'K1 Cu1 Tc2'
_cell_volume   90.55
_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
  K  K1  1  0.0  0.0  0.0  1.0
  Cu  Cu0  1  0.0  0.0  0.6  1.0
  Tc  Tc2  1  0.0  0.0  0.77  1.0
  Tc  Tc3  1  0.0  0.0  0.42  1.0

data_KCuTc2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.49
_cell_length_b   3.17
_cell_length_c   10.56
_cell_angle_alpha   90.0
_cell_angle_beta   99.99
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   KCuTc2
_chemical_formula_sum   'K2 Cu2 Tc4'
_cell_volume   181.1
_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
  K  K0  2  0.0  0.0  0.0  1.0
  Tc  Tc1  2  0.0  0.0  0.23  1.0
  Cu  Cu2  2  0.0  0.0  0.4  1.0
  Tc  Tc3  2  0.0  0.0  0.58  1.0

K Cu Tc Tc
KTc2Cu crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two KTc2Cu clusters. K(1) is bonded in a single-bond geometry to one Tc(1) atom. The K(1)-Tc(1) bond length is 2.42 Å. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded in a distorted linear geometry to one K(1) and one Cu(1) atom. The Tc(1)-Cu(1) bond length is 1.82 Å. In the second Tc site, Tc(2) is bonded in a single-bond geometry to one Cu(1) atom. The Tc(2)-Cu(1) bond length is 1.82 Å. Cu(1) is bonded in a linear geometry to one Tc(1) and one Tc(2) atom.