data_LiMnTc2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.78
_cell_length_b   3.78
_cell_length_c   3.56
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LiMnTc2
_chemical_formula_sum   'Li1 Mn1 Tc2'
_cell_volume   50.85
_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
  Li  Li0  1  0.0  0.0  0.0  1.0
  Mn  Mn1  1  0.89  0.89  0.0  1.0
  Tc  Tc2  1  0.89  0.0  0.78  1.0
  Tc  Tc3  1  0.0  0.89  0.78  1.0

data_LiMnTc2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.35
_cell_length_b   5.35
_cell_length_c   3.56
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LiMnTc2
_chemical_formula_sum   'Li2 Mn2 Tc4'
_cell_volume   101.71
_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
  Li  Li0  2  0.0  0.0  0.0  1.0
  Mn  Mn1  2  0.39  0.5  0.0  1.0
  Tc  Tc2  4  0.45  0.45  0.78  1.0

Li Mn Tc Tc
Li Mn Tc Tc 0 1 - - o 2 3 + - o 
LiTc2Mn is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two LiTc2Mn clusters. Li(1) is bonded in a distorted single-bond geometry to two equivalent Tc(1) and one Mn(1) atom. Both Li(1)-Tc(1) bond lengths are 0.89 Å. The Li(1)-Mn(1) bond length is 0.58 Å. Tc(1) is bonded in a 3-coordinate geometry to one Li(1), one Tc(1), and one Mn(1) atom. The Tc(1)-Tc(1) bond length is 0.58 Å. The Tc(1)-Mn(1) bond length is 0.89 Å. Mn(1) is bonded in a distorted single-bond geometry to one Li(1) and two equivalent Tc(1) atoms.