data_SrMn2Tc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.05
_cell_length_b   3.05
_cell_length_c   7.48
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrMn2Tc
_chemical_formula_sum   'Sr1 Mn2 Tc1'
_cell_volume   69.42
_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
  Sr  Sr2  1  0.0  0.0  0.69  1.0
  Mn  Mn0  1  0.0  0.0  0.17  1.0
  Mn  Mn1  1  0.52  0.52  0.12  1.0
  Tc  Tc3  1  0.52  0.52  0.25  1.0

data_SrMn2Tc
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.31
_cell_length_b   4.31
_cell_length_c   7.48
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrMn2Tc
_chemical_formula_sum   'Sr2 Mn4 Tc2'
_cell_volume   138.83
_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
  Sr  Sr0  2  0.0  0.0  0.69  1.0
  Mn  Mn1  2  0.0  0.0  0.17  1.0
  Mn  Mn2  2  0.02  0.5  0.12  1.0
  Tc  Tc3  2  0.02  0.5  0.25  1.0

Sr Mn Mn Tc
SrTcMn2 crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 14-coordinate geometry to four equivalent Sr(1), four equivalent Tc(1), two equivalent Mn(1), and four equivalent Mn(2) atoms. All Sr(1)-Sr(1) bond lengths are 3.05 Å. There are a spread of Sr(1)-Tc(1) bond distances ranging from 3.90-4.01 Å. There is one shorter (3.54 Å) and one longer (3.94 Å) Sr(1)-Mn(1) bond length. There are a spread of Sr(1)-Mn(2) bond distances ranging from 3.79-3.90 Å. Tc(1) is bonded in a single-bond geometry to four equivalent Sr(1), one Mn(2), and four equivalent Mn(1) atoms. The Tc(1)-Mn(2) bond length is 0.98 Å. There are a spread of Tc(1)-Mn(1) bond distances ranging from 2.15-2.34 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 9-coordinate geometry to two equivalent Sr(1), four equivalent Tc(1), and four equivalent Mn(2) atoms. There are a spread of Mn(1)-Mn(2) bond distances ranging from 2.09-2.28 Å. In the second Mn site, Mn(2) is bonded in a single-bond geometry to four equivalent Sr(1), one Tc(1), and four equivalent Mn(1) atoms.