data_K2YTc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.25
_cell_length_b   3.25
_cell_length_c   13.0
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   115.06
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2YTc
_chemical_formula_sum   'K2 Y1 Tc1'
_cell_volume   124.04
_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  K0  1  0.74  0.0  0.67  1.0
  K  K1  1  0.74  0.0  0.34  1.0
  Y  Y3  1  0.0  0.0  0.0  1.0
  Tc  Tc2  1  0.0  0.0  0.5  1.0

data_K2YTc
_symmetry_space_group_name_H-M   Pm
_cell_length_a   3.25
_cell_length_b   13.0
_cell_length_c   3.25
_cell_angle_alpha   90.0
_cell_angle_beta   115.06
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   K2YTc
_chemical_formula_sum   'K2 Y1 Tc1'
_cell_volume   124.04
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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  K0  2  0.74  0.33  0.0  1.0
  Y  Y1  1  0.0  0.0  0.0  1.0
  Tc  Tc2  1  0.0  0.5  0.0  1.0

K K Y Tc
K2YTc crystallizes in the triclinic P1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a single-bond geometry to one Y(1) and one Tc(1) atom. The K(1)-Y(1) bond length is 4.42 Å. The K(1)-Tc(1) bond length is 2.30 Å. In the second K site, K(2) is bonded in a single-bond geometry to one Y(1) and one Tc(1) atom. The K(2)-Y(1) bond length is 4.46 Å. The K(2)-Tc(1) bond length is 2.30 Å. Y(1) is bonded to one K(1), one K(2), and six equivalent Y(1) atoms to form a mixture of edge and corner-sharing YK2Y6 hexagonal bipyramids. There are four shorter (3.25 Å) and two longer (3.48 Å) Y(1)-Y(1) bond lengths. Tc(1) is bonded in a distorted bent 150 degrees geometry to one K(1) and one K(2) atom.