data_Tc2AgAs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.31
_cell_length_b   5.31
_cell_length_c   5.31
_cell_angle_alpha   146.57
_cell_angle_beta   130.5
_cell_angle_gamma   61.05
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tc2AgAs
_chemical_formula_sum   'Tc2 Ag1 As1'
_cell_volume   62.11
_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
  Tc  Tc2  1  0.0  0.22  0.43  1.0
  Tc  Tc3  1  0.0  0.0  0.14  1.0
  Ag  Ag0  1  0.0  0.22  0.14  1.0
  As  As1  1  0.0  0.0  0.01  1.0

data_Tc2AgAs
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.05
_cell_length_b   4.45
_cell_length_c   5.31
_cell_angle_alpha   114.75
_cell_angle_beta   106.71
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tc2AgAs
_chemical_formula_sum   'Tc2 Ag1 As1'
_cell_volume   62.11
_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
  Tc  Tc0  1  0.0  0.14  0.14  1.0
  Tc  Tc1  1  0.78  0.2  0.2  1.0
  Ag  Ag2  1  0.78  0.91  0.91  1.0
  As  As3  1  0.0  0.01  0.01  1.0

Tc Tc Ag As
Tc2AgAs crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Tc2AgAs cluster. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded in a distorted single-bond geometry to one Tc(2) atom. The Tc(1)-Tc(2) bond length is 0.84 Å. In the second Tc site, Tc(2) is bonded in a distorted single-bond geometry to one Tc(1) and one As(1) atom. The Tc(2)-As(1) bond length is 0.68 Å. Ag(1) is bonded in a single-bond geometry to one As(1) atom. The Ag(1)-As(1) bond length is 0.74 Å. As(1) is bonded in a bent 120 degrees geometry to one Tc(2) and one Ag(1) atom.