The crystal structure described by K2Tc crystallizes in the orthorhombic Amm2 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 5-coordinate geometry to one Tc(1) and four equivalent Tc(2) atoms. In the second K site, K(2) is bonded in a 5-coordinate geometry to one Tc(1) and four equivalent Tc(2) atoms. In the third K site, K(3) is bonded to two equivalent Tc(1) and two equivalent Tc(2) atoms to form a mixture of distorted corner and edge-sharing KTc4 tetrahedra. In the fourth K site, K(4) is bonded to two equivalent Tc(1) and two equivalent Tc(2) atoms to form a mixture of distorted corner and edge-sharing KTc4 tetrahedra. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded in a 9-coordinate geometry to one K(1), two equivalent K(2), two equivalent K(3), and four equivalent K(4) atoms. In the second Tc site, Tc(2) is bonded in a 9-coordinate geometry to one K(3), two equivalent K(1), two equivalent K(4), and four equivalent K(2) atoms. is represented by the CIF card [CIF]
data_K2Tc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.970
_cell_length_b   9.583
_cell_length_c   9.710
_cell_angle_alpha   119.568
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   402.259
_cell_formula_units_Z   3
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  0.000  0.590  0.000  1.0
  K  K1  1  0.000  0.412  0.412  1.0
  K  K2  1  0.000  1.000  0.588  1.0
  K  K3  1  0.500  0.258  0.000  1.0
  K  K4  1  0.500  0.742  0.741  1.0
  K  K5  1  0.500  0.000  0.259  1.0
  Tc  Tc6  1  0.000  0.999  0.000  1.0
  Tc  Tc7  1  0.500  0.332  0.664  1.0
  Tc  Tc8  1  0.500  0.668  0.336  1.0
[/CIF]
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The crystal structure described by K2Tc crystallizes in the orthorhombic Amm2 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 5-coordinate geometry to one Tc(1) and four equivalent Tc(2) atoms. In the second K site, K(2) is bonded in a 5-coordinate geometry to one Tc(1) and four equivalent Tc(2) atoms. In the third K site, K(3) is bonded to two equivalent Tc(1) and two equivalent Tc(2) atoms to form a mixture of distorted corner and edge-sharing KTc4 tetrahedra. In the fourth K site, K(4) is bonded to two equivalent Tc(1) and two equivalent Tc(2) atoms to form a mixture of distorted corner and edge-sharing KTc4 tetrahedra. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded in a 9-coordinate geometry to one K(1), two equivalent K(2), two equivalent K(3), and four equivalent K(4) atoms. In the second Tc site, Tc(2) is bonded in a 9-coordinate geometry to one K(3), two equivalent K(1), two equivalent K(4), and four equivalent K(2) atoms. is represented by the CIF card [CIF]
data_K2Tc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.970
_cell_length_b   9.583
_cell_length_c   9.710
_cell_angle_alpha   119.568
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   402.259
_cell_formula_units_Z   3
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  0.000  0.590  0.000  1.0
  K  K1  1  0.000  0.412  0.412  1.0
  K  K2  1  0.000  1.000  0.588  1.0
  K  K3  1  0.500  0.258  0.000  1.0
  K  K4  1  0.500  0.742  0.741  1.0
  K  K5  1  0.500  0.000  0.259  1.0
  Tc  Tc6  1  0.000  0.999  0.000  1.0
  Tc  Tc7  1  0.500  0.332  0.664  1.0
  Tc  Tc8  1  0.500  0.668  0.336  1.0
[/CIF]
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