data_Li2CaTc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.25
_cell_length_b   5.25
_cell_length_c   5.25
_cell_angle_alpha   131.46
_cell_angle_beta   131.46
_cell_angle_gamma   71.08
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Li2CaTc
_chemical_formula_sum   'Li2 Ca1 Tc1'
_cell_volume   79.47
_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
  Li  Li1  1  0.16  0.0  0.14  1.0
  Li  Li2  1  0.0  0.16  0.14  1.0
  Ca  Ca0  1  0.0  0.0  0.0  1.0
  Tc  Tc3  1  0.0  0.0  0.27  1.0

data_Li2CaTc
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.1
_cell_length_b   6.1
_cell_length_c   5.25
_cell_angle_alpha   90.0
_cell_angle_beta   125.54
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Li2CaTc
_chemical_formula_sum   'Li4 Ca2 Tc2'
_cell_volume   158.94
_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
  Li  Li0  4  0.44  0.42  0.02  1.0
  Ca  Ca1  2  0.0  0.0  0.0  1.0
  Tc  Tc2  2  0.23  0.5  0.73  1.0

Li Li Ca Tc
Li2CaTc is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Li2CaTc clusters. Li(1) is bonded in a 2-coordinate geometry to one Ca(1) and one Tc(1) atom. The Li(1)-Ca(1) bond length is 0.64 Å. The Li(1)-Tc(1) bond length is 1.40 Å. Ca(1) is bonded in a distorted water-like geometry to two equivalent Li(1) and one Tc(1) atom. The Ca(1)-Tc(1) bond length is 1.42 Å. Tc(1) is bonded in a 3-coordinate geometry to two equivalent Li(1) and one Ca(1) atom.