The material described by TcAg3 is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. Tc(1) is bonded to four equivalent Ag(2) and eight equivalent Ag(1) atoms to form TcAg12 cuboctahedra that share corners with four equivalent Tc(1)Ag12 cuboctahedra, corners with eight equivalent Ag(2)Tc4Ag8 cuboctahedra, edges with eight equivalent Tc(1)Ag12 cuboctahedra, edges with sixteen equivalent Ag(1)Tc4Ag8 cuboctahedra, faces with four equivalent Tc(1)Ag12 cuboctahedra, faces with six equivalent Ag(2)Tc4Ag8 cuboctahedra, and faces with eight equivalent Ag(1)Tc4Ag8 cuboctahedra. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to four equivalent Tc(1), four equivalent Ag(1), and four equivalent Ag(2) atoms to form AgTc4Ag8 cuboctahedra that share corners with twelve equivalent Ag(1)Tc4Ag8 cuboctahedra, edges with eight equivalent Tc(1)Ag12 cuboctahedra, edges with eight equivalent Ag(1)Tc4Ag8 cuboctahedra, edges with eight equivalent Ag(2)Tc4Ag8 cuboctahedra, faces with four equivalent Tc(1)Ag12 cuboctahedra, faces with four equivalent Ag(2)Tc4Ag8 cuboctahedra, and faces with ten equivalent Ag(1)Tc4Ag8 cuboctahedra. In the second Ag site, Ag(2) is bonded to four equivalent Tc(1) and eight equivalent Ag(1) atoms to form AgTc4Ag8 cuboctahedra that share corners with four equivalent Ag(2)Tc4Ag8 cuboctahedra, corners with eight equivalent Tc(1)Ag12 cuboctahedra, edges with eight equivalent Ag(2)Tc4Ag8 cuboctahedra, edges with sixteen equivalent Ag(1)Tc4Ag8 cuboctahedra, faces with four equivalent Ag(2)Tc4Ag8 cuboctahedra, faces with six equivalent Tc(1)Ag12 cuboctahedra, and faces with eight equivalent Ag(1)Tc4Ag8 cuboctahedra. is represented by the CIF card [CIF]
data_TcAg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.911
_cell_length_b   4.911
_cell_length_c   4.911
_cell_angle_alpha   128.625
_cell_angle_beta   128.625
_cell_angle_gamma   75.615
_symmetry_Int_Tables_number   1
_cell_volume   70.326
_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  0.000  0.000  0.000  1.0
  Ag  Ag1  1  0.750  0.250  0.500  1.0
  Ag  Ag2  1  0.250  0.750  0.500  1.0
  Ag  Ag3  1  0.500  0.500  0.000  1.0
[/CIF]
.
The material described by TcAg3 is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. Tc(1) is bonded to four equivalent Ag(2) and eight equivalent Ag(1) atoms to form TcAg12 cuboctahedra that share corners with four equivalent Tc(1)Ag12 cuboctahedra, corners with eight equivalent Ag(2)Tc4Ag8 cuboctahedra, edges with eight equivalent Tc(1)Ag12 cuboctahedra, edges with sixteen equivalent Ag(1)Tc4Ag8 cuboctahedra, faces with four equivalent Tc(1)Ag12 cuboctahedra, faces with six equivalent Ag(2)Tc4Ag8 cuboctahedra, and faces with eight equivalent Ag(1)Tc4Ag8 cuboctahedra. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to four equivalent Tc(1), four equivalent Ag(1), and four equivalent Ag(2) atoms to form AgTc4Ag8 cuboctahedra that share corners with twelve equivalent Ag(1)Tc4Ag8 cuboctahedra, edges with eight equivalent Tc(1)Ag12 cuboctahedra, edges with eight equivalent Ag(1)Tc4Ag8 cuboctahedra, edges with eight equivalent Ag(2)Tc4Ag8 cuboctahedra, faces with four equivalent Tc(1)Ag12 cuboctahedra, faces with four equivalent Ag(2)Tc4Ag8 cuboctahedra, and faces with ten equivalent Ag(1)Tc4Ag8 cuboctahedra. In the second Ag site, Ag(2) is bonded to four equivalent Tc(1) and eight equivalent Ag(1) atoms to form AgTc4Ag8 cuboctahedra that share corners with four equivalent Ag(2)Tc4Ag8 cuboctahedra, corners with eight equivalent Tc(1)Ag12 cuboctahedra, edges with eight equivalent Ag(2)Tc4Ag8 cuboctahedra, edges with sixteen equivalent Ag(1)Tc4Ag8 cuboctahedra, faces with four equivalent Ag(2)Tc4Ag8 cuboctahedra, faces with six equivalent Tc(1)Ag12 cuboctahedra, and faces with eight equivalent Ag(1)Tc4Ag8 cuboctahedra. is represented by the CIF card [CIF]
data_TcAg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.911
_cell_length_b   4.911
_cell_length_c   4.911
_cell_angle_alpha   128.625
_cell_angle_beta   128.625
_cell_angle_gamma   75.615
_symmetry_Int_Tables_number   1
_cell_volume   70.326
_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  0.000  0.000  0.000  1.0
  Ag  Ag1  1  0.750  0.250  0.500  1.0
  Ag  Ag2  1  0.250  0.750  0.500  1.0
  Ag  Ag3  1  0.500  0.500  0.000  1.0
[/CIF]
.