data_Cr2TcRu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.86
_cell_length_b   2.86
_cell_length_c   6.33
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cr2TcRu
_chemical_formula_sum   'Cr2 Tc1 Ru1'
_cell_volume   51.92
_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
  Cr  Cr0  1  0.43  0.43  0.16  1.0
  Cr  Cr1  1  0.0  0.0  0.43  1.0
  Tc  Tc3  1  0.0  0.0  0.89  1.0
  Ru  Ru2  1  0.43  0.43  0.01  1.0

data_Cr2TcRu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.05
_cell_length_b   4.05
_cell_length_c   6.33
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Cr2TcRu
_chemical_formula_sum   'Cr4 Tc2 Ru2'
_cell_volume   103.84
_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
  Cr  Cr0  2  0.0  0.0  0.43  1.0
  Cr  Cr1  2  0.43  0.0  0.16  1.0
  Tc  Tc2  2  0.0  0.0  0.89  1.0
  Ru  Ru3  2  0.43  0.0  0.01  1.0

Cr Cr Tc Ru
Cr2TcRu crystallizes in the monoclinic Cm space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a single-bond geometry to four equivalent Cr(2) and one Ru(1) atom. There are a spread of Cr(1)-Cr(2) bond distances ranging from 2.48-2.89 Å. The Cr(1)-Ru(1) bond length is 0.91 Å. In the second Cr site, Cr(2) is bonded in a 9-coordinate geometry to four equivalent Cr(1), four equivalent Cr(2), and one Tc(1) atom. All Cr(2)-Cr(2) bond lengths are 2.86 Å. The Cr(2)-Tc(1) bond length is 2.89 Å. Tc(1) is bonded in a 5-coordinate geometry to one Cr(2) and four equivalent Ru(1) atoms. There are a spread of Tc(1)-Ru(1) bond distances ranging from 1.91-2.43 Å. Ru(1) is bonded in a distorted single-bond geometry to one Cr(1) and four equivalent Tc(1) atoms.