data_NaTc2Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.24
_cell_length_b   3.24
_cell_length_c   6.84
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaTc2Ge
_chemical_formula_sum   'Na1 Tc2 Ge1'
_cell_volume   71.77
_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
  Na  Na1  1  0.0  0.0  0.0  1.0
  Tc  Tc2  1  0.62  0.62  0.22  1.0
  Tc  Tc3  1  0.62  0.62  0.62  1.0
  Ge  Ge0  1  0.0  0.0  0.42  1.0

data_NaTc2Ge
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.58
_cell_length_b   4.58
_cell_length_c   6.84
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NaTc2Ge
_chemical_formula_sum   'Na2 Tc4 Ge2'
_cell_volume   143.54
_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
  Na  Na0  2  0.0  0.0  0.0  1.0
  Tc  Tc1  2  0.12  0.5  0.22  1.0
  Tc  Tc2  2  0.12  0.5  0.62  1.0
  Ge  Ge3  2  0.0  0.0  0.42  1.0

Na Tc Tc Ge
Na Tc Tc Ge 0 2 - - - 0 1 - - o 0 1 - o o 0 1 o - o 0 1 o o o 0 3 o o o 1 3 o + o 1 3 + o o 1 3 + + o 1 2 o o o 2 3 o + o 2 3 + o o 2 3 + + o 
NaTc2Ge crystallizes in the monoclinic Cm space group. Na(1) is bonded in a 1-coordinate geometry to one Tc(1), four equivalent Tc(2), and one Ge(1) atom. The Na(1)-Tc(1) bond length is 2.31 Å. There are a spread of Na(1)-Tc(2) bond distances ranging from 3.11-3.83 Å. The Na(1)-Ge(1) bond length is 2.89 Å. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded in a 1-coordinate geometry to one Na(1), one Tc(2), and four equivalent Ge(1) atoms. The Tc(1)-Tc(2) bond length is 2.76 Å. There are a spread of Tc(1)-Ge(1) bond distances ranging from 2.22-3.15 Å. In the second Tc site, Tc(2) is bonded in a 13-coordinate geometry to four equivalent Na(1), one Tc(1), four equivalent Tc(2), and four equivalent Ge(1) atoms. All Tc(2)-Tc(2) bond lengths are 3.24 Å. There are a spread of Tc(2)-Ge(1) bond distances ranging from 2.22-3.15 Å. Ge(1) is bonded in a 9-coordinate geometry to one Na(1), four equivalent Tc(1), and four equivalent Tc(2) atoms.