The compound described by TbAgAl3 crystallizes in the orthorhombic Imm2 space group. Tb(1) is bonded in a 16-coordinate geometry to four equivalent Ag(1), four equivalent Al(1), four equivalent Al(2), and four equivalent Al(3) atoms. Ag(1) is bonded to four equivalent Tb(1), two equivalent Al(2), two equivalent Al(3), and four equivalent Al(1) atoms to form distorted AgTb4Al8 cuboctahedra that share corners with four equivalent Al(1)Tb4Al4Ag4 cuboctahedra, corners with twelve equivalent Ag(1)Tb4Al8 cuboctahedra, edges with two equivalent Al(1)Tb4Al4Ag4 cuboctahedra, faces with four equivalent Ag(1)Tb4Al8 cuboctahedra, and faces with four equivalent Al(1)Tb4Al4Ag4 cuboctahedra. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded to four equivalent Tb(1), four equivalent Ag(1), two equivalent Al(2), and two equivalent Al(3) atoms to form AlTb4Al4Ag4 cuboctahedra that share corners with four equivalent Ag(1)Tb4Al8 cuboctahedra, corners with twelve equivalent Al(1)Tb4Al4Ag4 cuboctahedra, edges with two equivalent Ag(1)Tb4Al8 cuboctahedra, faces with four equivalent Ag(1)Tb4Al8 cuboctahedra, and faces with four equivalent Al(1)Tb4Al4Ag4 cuboctahedra. In the second Al site, Al(2) is bonded in a 9-coordinate geometry to four equivalent Tb(1), two equivalent Ag(1), one Al(3), and two equivalent Al(1) atoms. In the third Al site, Al(3) is bonded in a 9-coordinate geometry to four equivalent Tb(1), two equivalent Ag(1), one Al(2), and two equivalent Al(1) atoms. is represented by the CIF file [CIF]
data_TbAl3Ag
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.192
_cell_length_b   4.185
_cell_length_c   6.384
_cell_angle_alpha   70.864
_cell_angle_beta   70.835
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   99.211
_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
  Tb  Tb0  1  0.000  0.000  1.000  1.0
  Al  Al1  1  0.249  0.749  0.501  1.0
  Al  Al2  1  0.610  0.610  0.781  1.0
  Al  Al3  1  0.390  0.390  0.220  1.0
  Ag  Ag4  1  0.751  0.251  0.499  1.0
[/CIF]
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The compound described by TbAgAl3 crystallizes in the orthorhombic Imm2 space group. Tb(1) is bonded in a 16-coordinate geometry to four equivalent Ag(1), four equivalent Al(1), four equivalent Al(2), and four equivalent Al(3) atoms. Ag(1) is bonded to four equivalent Tb(1), two equivalent Al(2), two equivalent Al(3), and four equivalent Al(1) atoms to form distorted AgTb4Al8 cuboctahedra that share corners with four equivalent Al(1)Tb4Al4Ag4 cuboctahedra, corners with twelve equivalent Ag(1)Tb4Al8 cuboctahedra, edges with two equivalent Al(1)Tb4Al4Ag4 cuboctahedra, faces with four equivalent Ag(1)Tb4Al8 cuboctahedra, and faces with four equivalent Al(1)Tb4Al4Ag4 cuboctahedra. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded to four equivalent Tb(1), four equivalent Ag(1), two equivalent Al(2), and two equivalent Al(3) atoms to form AlTb4Al4Ag4 cuboctahedra that share corners with four equivalent Ag(1)Tb4Al8 cuboctahedra, corners with twelve equivalent Al(1)Tb4Al4Ag4 cuboctahedra, edges with two equivalent Ag(1)Tb4Al8 cuboctahedra, faces with four equivalent Ag(1)Tb4Al8 cuboctahedra, and faces with four equivalent Al(1)Tb4Al4Ag4 cuboctahedra. In the second Al site, Al(2) is bonded in a 9-coordinate geometry to four equivalent Tb(1), two equivalent Ag(1), one Al(3), and two equivalent Al(1) atoms. In the third Al site, Al(3) is bonded in a 9-coordinate geometry to four equivalent Tb(1), two equivalent Ag(1), one Al(2), and two equivalent Al(1) atoms. is represented by the CIF file [CIF]
data_TbAl3Ag
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.192
_cell_length_b   4.185
_cell_length_c   6.384
_cell_angle_alpha   70.864
_cell_angle_beta   70.835
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   99.211
_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
  Tb  Tb0  1  0.000  0.000  1.000  1.0
  Al  Al1  1  0.249  0.749  0.501  1.0
  Al  Al2  1  0.610  0.610  0.781  1.0
  Al  Al3  1  0.390  0.390  0.220  1.0
  Ag  Ag4  1  0.751  0.251  0.499  1.0
[/CIF]
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