data_Cr2SiTc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.55
_cell_length_b   4.55
_cell_length_c   4.55
_cell_angle_alpha   132.51
_cell_angle_beta   132.51
_cell_angle_gamma   69.42
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cr2SiTc
_chemical_formula_sum   'Cr2 Si1 Tc1'
_cell_volume   50.31
_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
  Cr  Cr0  1  0.0  0.0  0.74  1.0
  Cr  Cr1  1  0.0  0.83  0.87  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0
  Tc  Tc3  1  0.83  0.0  0.87  1.0

data_Cr2SiTc
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.67
_cell_length_b   3.67
_cell_length_c   4.55
_cell_angle_alpha   113.75
_cell_angle_beta   113.75
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cr2SiTc
_chemical_formula_sum   'Cr2 Si1 Tc1'
_cell_volume   50.31
_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
  Cr  Cr0  1  0.26  0.0  0.26  1.0
  Cr  Cr1  1  0.96  0.83  0.96  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0
  Tc  Tc3  1  0.13  0.0  0.96  1.0

Cr Cr Si Tc
Cr Cr Si Tc 0 3 - o o 0 1 o - o 0 2 o o + 1 2 o + + 2 3 - o - 
Cr2TcSi is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Cr2TcSi cluster. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 2-coordinate geometry to one Tc(1) and one Si(1) atom. The Cr(1)-Tc(1) bond length is 1.23 Å. The Cr(1)-Si(1) bond length is 1.17 Å. In the second Cr site, Cr(2) is bonded in a single-bond geometry to one Si(1) atom. The Cr(2)-Si(1) bond length is 0.56 Å. Tc(1) is bonded in a distorted single-bond geometry to one Cr(1) and one Si(1) atom. The Tc(1)-Si(1) bond length is 0.56 Å. Si(1) is bonded in a 2-coordinate geometry to one Cr(1), one Cr(2), and one Tc(1) atom.