The material described by Tc2Al crystallizes in the tetragonal I4/mmm space group. Tc(1) is bonded in a 8-coordinate geometry to four equivalent Tc(1) and four equivalent Al(1) atoms. Al(1) is bonded in a body-centered cubic geometry to eight equivalent Tc(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_AlTc2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.975
_cell_length_b   2.975
_cell_length_c   5.168
_cell_angle_alpha   106.727
_cell_angle_beta   106.727
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   41.785
_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  0.000  0.000  0.000  1.0
  Tc  Tc1  1  0.670  0.670  0.340  1.0
  Tc  Tc2  1  0.330  0.330  0.660  1.0
[/CIF]
.
The material described by Tc2Al crystallizes in the tetragonal I4/mmm space group. Tc(1) is bonded in a 8-coordinate geometry to four equivalent Tc(1) and four equivalent Al(1) atoms. Al(1) is bonded in a body-centered cubic geometry to eight equivalent Tc(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_AlTc2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.975
_cell_length_b   2.975
_cell_length_c   5.168
_cell_angle_alpha   106.727
_cell_angle_beta   106.727
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   41.785
_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  0.000  0.000  0.000  1.0
  Tc  Tc1  1  0.670  0.670  0.340  1.0
  Tc  Tc2  1  0.330  0.330  0.660  1.0
[/CIF]
.