data_PdC3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.47
_cell_length_b   3.47
_cell_length_c   5.63
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   138.49
_symmetry_Int_Tables_number   1
_chemical_formula_structural   PdC3
_chemical_formula_sum   'Pd1 C3'
_cell_volume   44.83
_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
  Pd  Pd3  1  0.0  0.0  0.81  1.0
  C  C0  1  0.23  0.0  0.98  1.0
  C  C1  1  0.0  0.0  0.0  1.0
  C  C2  1  0.23  0.0  0.65  1.0

data_PdC3
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.46
_cell_length_b   3.47
_cell_length_c   5.63
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   110.75
_symmetry_Int_Tables_number   1
_chemical_formula_structural   PdC3
_chemical_formula_sum   'Pd1 C3'
_cell_volume   44.83
_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
  Pd  Pd0  1  0.0  0.0  0.81  1.0
  C  C1  1  0.0  0.0  0.0  1.0
  C  C2  1  0.0  0.23  0.65  1.0
  C  C3  1  0.0  0.23  0.98  1.0

Pd C C C
Pd C C C 0 3 o o o 0 2 o o + 0 1 o o o 1 2 o o + 
PdC3 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one PdC3 cluster. Pd(1) is bonded in a 3-coordinate geometry to one C(1), one C(2), and one C(3) atom. The Pd(1)-C(1) bond length is 1.22 Å. The Pd(1)-C(2) bond length is 1.05 Å. The Pd(1)-C(3) bond length is 1.22 Å. There are three inequivalent C sites. In the first C site, C(1) is bonded in a 2-coordinate geometry to one Pd(1) and one C(2) atom. The C(1)-C(2) bond length is 0.80 Å. In the second C site, C(2) is bonded in a distorted L-shaped geometry to one Pd(1) and one C(1) atom. In the third C site, C(3) is bonded in a single-bond geometry to one Pd(1) atom.