data_NaY2Tc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.47
_cell_length_b   3.47
_cell_length_c   9.32
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   92.35
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaY2Tc
_chemical_formula_sum   'Na1 Y2 Tc1'
_cell_volume   111.92
_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  Na0  1  0.0  0.0  0.0  1.0
  Y  Y2  1  0.4  0.0  0.29  1.0
  Y  Y3  1  0.4  0.0  0.03  1.0
  Tc  Tc1  1  0.0  0.0  0.66  1.0

data_NaY2Tc
_symmetry_space_group_name_H-M   Pm
_cell_length_a   3.47
_cell_length_b   3.47
_cell_length_c   9.32
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   NaY2Tc
_chemical_formula_sum   'Na1 Y2 Tc1'
_cell_volume   112.01
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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  Na0  1  0.0  0.0  0.0  1.0
  Y  Y1  1  0.4  0.0  0.03  1.0
  Y  Y2  1  0.4  0.0  0.29  1.0
  Tc  Tc3  1  0.0  0.0  0.66  1.0

Na Y Y Tc
NaY2Tc crystallizes in the monoclinic Pm space group. Na(1) is bonded in a 3-coordinate geometry to two equivalent Y(1), two equivalent Y(2), and one Tc(1) atom. There is one shorter (3.07 Å) and one longer (3.44 Å) Na(1)-Y(1) bond length. There is one shorter (1.41 Å) and one longer (2.09 Å) Na(1)-Y(2) bond length. The Na(1)-Tc(1) bond length is 3.17 Å. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 9-coordinate geometry to two equivalent Na(1), one Y(2), four equivalent Y(1), and two equivalent Tc(1) atoms. The Y(1)-Y(2) bond length is 2.49 Å. All Y(1)-Y(1) bond lengths are 3.47 Å. There is one shorter (3.69 Å) and one longer (4.00 Å) Y(1)-Tc(1) bond length. In the second Y site, Y(2) is bonded in a 2-coordinate geometry to two equivalent Na(1) and one Y(1) atom. Tc(1) is bonded in a 2-coordinate geometry to one Na(1) and two equivalent Y(1) atoms.