data_TbPu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.55
_cell_length_b   3.55
_cell_length_c   5.86
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TbPu
_chemical_formula_sum   'Tb1 Pu1'
_cell_volume   64.11
_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
  Tb  Tb0  1  0.0  0.0  0.0  1.0
  Pu  Pu1  1  0.0  0.05  0.93  1.0

data_TbPu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.55
_cell_length_b   6.16
_cell_length_c   5.86
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TbPu
_chemical_formula_sum   'Tb2 Pu2'
_cell_volume   128.22
_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
  Tb  Tb0  2  0.0  0.0  0.0  1.0
  Pu  Pu1  2  0.05  0.0  0.93  1.0

Tb Pu
Tb Pu 0 1 o o - 
PuTb is alpha carbon monoxide-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two PuTb clusters. Pu(1) is bonded in a single-bond geometry to one Tb(1) atom. The Pu(1)-Tb(1) bond length is 0.45 Å. Tb(1) is bonded in a single-bond geometry to one Pu(1) atom.