data_AlTcOs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.89
_cell_length_b   2.89
_cell_length_c   6.73
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlTcOs2
_chemical_formula_sum   'Al1 Tc1 Os2'
_cell_volume   56.36
_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
  Al  Al0  1  0.0  0.0  0.0  1.0
  Tc  Tc3  1  0.0  0.0  0.37  1.0
  Os  Os1  1  0.45  0.45  0.6  1.0
  Os  Os2  1  0.45  0.45  0.13  1.0

data_AlTcOs2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.09
_cell_length_b   4.09
_cell_length_c   6.73
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   AlTcOs2
_chemical_formula_sum   'Al2 Tc2 Os4'
_cell_volume   112.72
_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
  Al  Al0  2  0.0  0.0  0.0  1.0
  Tc  Tc1  2  0.0  0.0  0.37  1.0
  Os  Os2  2  0.45  0.0  0.13  1.0
  Os  Os3  2  0.45  0.0  0.6  1.0

Al Tc Os Os
TcOs2Al crystallizes in the monoclinic Cm space group. Tc(1) is bonded in a 9-coordinate geometry to four equivalent Os(1), four equivalent Os(2), and one Al(1) atom. There are a spread of Tc(1)-Os(1) bond distances ranging from 2.43-2.77 Å. There are a spread of Tc(1)-Os(2) bond distances ranging from 2.43-2.77 Å. The Tc(1)-Al(1) bond length is 2.47 Å. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded in a 11-coordinate geometry to four equivalent Tc(1), four equivalent Os(1), and three equivalent Al(1) atoms. All Os(1)-Os(1) bond lengths are 2.89 Å. There is one shorter (3.23 Å) and two longer (3.37 Å) Os(1)-Al(1) bond lengths. In the second Os site, Os(2) is bonded in a 8-coordinate geometry to four equivalent Tc(1) and four equivalent Al(1) atoms. There are a spread of Os(2)-Al(1) bond distances ranging from 2.02-2.43 Å. Al(1) is bonded in a 4-coordinate geometry to one Tc(1), three equivalent Os(1), and four equivalent Os(2) atoms.