data_NaDy
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.26
_cell_length_b   5.26
_cell_length_c   6.45
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaDy
_chemical_formula_sum   'Na2 Dy2'
_cell_volume   154.74
_cell_formula_units_Z   2
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
  Na  Na2  1  0.63  0.52  0.84  1.0
  Na  Na3  1  0.0  0.04  0.61  1.0
  Dy  Dy0  1  0.63  0.52  0.61  1.0
  Dy  Dy1  1  0.0  0.04  0.84  1.0

data_NaDy
_symmetry_space_group_name_H-M   P-1
_cell_length_a   5.26
_cell_length_b   5.26
_cell_length_c   6.45
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   NaDy
_chemical_formula_sum   'Na2 Dy2'
_cell_volume   154.74
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  Na  Na0  2  0.32  0.24  0.61  1.0
  Dy  Dy1  2  0.32  0.24  0.39  1.0

Na Na Dy Dy
Na Na Dy Dy 0 2 o o o 1 3 o o o 
NaDy crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two NaDy clusters. Na(1) is bonded in a distorted single-bond geometry to one Dy(1) atom. The Na(1)-Dy(1) bond length is 1.45 Å. Dy(1) is bonded in a distorted single-bond geometry to one Na(1) atom.