data_NaMn2Tc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.53
_cell_length_b   9.53
_cell_length_c   9.53
_cell_angle_alpha   15.94
_cell_angle_beta   15.94
_cell_angle_gamma   15.94
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaMn2Tc
_chemical_formula_sum   'Na1 Mn2 Tc1'
_cell_volume   56.91
_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  0.19  1.0
  Mn  Mn0  1  0.0  0.0  0.11  1.0
  Mn  Mn1  1  0.0  0.0  0.47  1.0
  Tc  Tc3  1  0.0  0.0  0.79  1.0

data_NaMn2Tc
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.58
_cell_length_b   2.64
_cell_length_c   9.53
_cell_angle_alpha   90.0
_cell_angle_beta   99.21
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NaMn2Tc
_chemical_formula_sum   'Na2 Mn4 Tc2'
_cell_volume   113.83
_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  0.81  1.0
  Mn  Mn1  2  0.0  0.0  0.53  1.0
  Mn  Mn2  2  0.0  0.0  0.89  1.0
  Tc  Tc3  2  0.0  0.0  0.21  1.0

Na Mn Mn Tc
NaTcMn2 crystallizes in the monoclinic Cm space group. Na(1) is bonded in a single-bond geometry to one Mn(1) and one Mn(2) atom. The Na(1)-Mn(1) bond length is 0.72 Å. The Na(1)-Mn(2) bond length is 2.67 Å. Tc(1) is bonded to six equivalent Tc(1), one Mn(1), and one Mn(2) atom to form a mixture of edge and corner-sharing TcMn2Tc6 hexagonal bipyramids. All Tc(1)-Tc(1) bond lengths are 2.64 Å. The Tc(1)-Mn(1) bond length is 3.07 Å. The Tc(1)-Mn(2) bond length is 3.07 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a single-bond geometry to one Na(1) and one Tc(1) atom. In the second Mn site, Mn(2) is bonded in a 8-coordinate geometry to one Na(1), one Tc(1), and six equivalent Mn(2) atoms. All Mn(2)-Mn(2) bond lengths are 2.64 Å.