data_BaCr2Tc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.38
_cell_length_b   4.38
_cell_length_c   6.59
_cell_angle_alpha   109.24
_cell_angle_beta   109.24
_cell_angle_gamma   52.02
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BaCr2Tc
_chemical_formula_sum   'Ba1 Cr2 Tc1'
_cell_volume   92.58
_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
  Ba  Ba0  1  0.13  0.0  0.58  1.0
  Cr  Cr1  1  0.09  0.0  0.14  1.0
  Cr  Cr2  1  0.27  0.0  0.59  1.0
  Tc  Tc3  1  0.67  0.0  0.89  1.0

data_BaCr2Tc
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.84
_cell_length_b   4.38
_cell_length_c   6.59
_cell_angle_alpha   109.24
_cell_angle_beta   90.0
_cell_angle_gamma   116.01
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BaCr2Tc
_chemical_formula_sum   'Ba1 Cr2 Tc1'
_cell_volume   92.58
_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
  Ba  Ba0  1  0.0  0.87  0.42  1.0
  Cr  Cr1  1  0.0  0.73  0.41  1.0
  Cr  Cr2  1  0.0  0.91  0.86  1.0
  Tc  Tc3  1  0.0  0.33  0.11  1.0

Ba Cr Cr Tc
BaCr2Tc crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one BaCr2Tc cluster. Ba(1) is bonded in a single-bond geometry to one Cr(2) atom. The Ba(1)-Cr(2) bond length is 0.58 Å. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a distorted single-bond geometry to one Tc(1) atom. The Cr(1)-Tc(1) bond length is 2.00 Å. In the second Cr site, Cr(2) is bonded in a single-bond geometry to one Ba(1) and one Tc(1) atom. The Cr(2)-Tc(1) bond length is 2.18 Å. Tc(1) is bonded in a 2-coordinate geometry to one Cr(1) and one Cr(2) atom.