data_TlCrPd2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.22
_cell_length_b   3.22
_cell_length_c   6.36
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TlCrPd2
_chemical_formula_sum   'Tl1 Cr1 Pd2'
_cell_volume   65.97
_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
  Tl  Tl3  1  0.61  0.61  0.2  1.0
  Cr  Cr0  1  0.0  0.0  1.0  1.0
  Pd  Pd1  1  0.61  0.61  0.21  1.0
  Pd  Pd2  1  0.0  0.0  0.49  1.0

data_TlCrPd2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.56
_cell_length_b   4.56
_cell_length_c   6.36
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TlCrPd2
_chemical_formula_sum   'Tl2 Cr2 Pd4'
_cell_volume   131.95
_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
  Tl  Tl0  2  0.11  0.5  0.2  1.0
  Cr  Cr1  2  0.0  0.0  1.0  1.0
  Pd  Pd2  2  0.0  0.0  0.49  1.0
  Pd  Pd3  2  0.11  0.5  0.21  1.0

Tl Cr Pd Pd
CrPd2Tl crystallizes in the monoclinic Cm space group. Cr(1) is bonded in a 4-coordinate geometry to one Pd(2) and three equivalent Tl(1) atoms. The Cr(1)-Pd(2) bond length is 3.26 Å. There is one shorter (2.18 Å) and two longer (2.66 Å) Cr(1)-Tl(1) bond lengths. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a single-bond geometry to one Pd(2) and one Tl(1) atom. The Pd(1)-Pd(2) bond length is 2.51 Å. The Pd(1)-Tl(1) bond length is 0.04 Å. In the second Pd site, Pd(2) is bonded in a 2-coordinate geometry to one Cr(1) and one Pd(1) atom. Tl(1) is bonded in a single-bond geometry to three equivalent Cr(1) and one Pd(1) atom.