data_NaTcCl2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.88
_cell_length_b   4.88
_cell_length_c   4.88
_cell_angle_alpha   120.85
_cell_angle_beta   120.85
_cell_angle_gamma   88.54
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaTcCl2
_chemical_formula_sum   'Na1 Tc1 Cl2'
_cell_volume   80.98
_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  Na2  1  0.0  0.0  0.0  1.0
  Tc  Tc3  1  0.0  0.0  0.49  1.0
  Cl  Cl0  1  0.0  0.41  0.75  1.0
  Cl  Cl1  1  0.41  0.0  0.75  1.0

data_NaTcCl2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.81
_cell_length_b   6.81
_cell_length_c   4.88
_cell_angle_alpha   90.0
_cell_angle_beta   134.27
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NaTcCl2
_chemical_formula_sum   'Na2 Tc2 Cl4'
_cell_volume   161.95
_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  0.0  0.0  0.49  1.0
  Cl  Cl2  4  0.3  0.3  0.34  1.0

Na Tc Cl Cl
NaTcCl2 crystallizes in the monoclinic Cm space group. Na(1) is bonded in a 6-coordinate geometry to two equivalent Tc(1) and four equivalent Cl(1) atoms. There is one shorter (2.40 Å) and one longer (2.48 Å) Na(1)-Tc(1) bond length. There are two shorter (2.49 Å) and two longer (2.83 Å) Na(1)-Cl(1) bond lengths. Tc(1) is bonded in a 4-coordinate geometry to two equivalent Na(1) and two equivalent Cl(1) atoms. Both Tc(1)-Cl(1) bond lengths are 1.72 Å. Cl(1) is bonded in a 2-coordinate geometry to two equivalent Na(1) and one Tc(1) atom.