data_NaCr2Os
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.13
_cell_length_b   5.13
_cell_length_c   5.13
_cell_angle_alpha   147.08
_cell_angle_beta   127.59
_cell_angle_gamma   63.29
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaCr2Os
_chemical_formula_sum   'Na1 Cr2 Os1'
_cell_volume   57.38
_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
  Na  Na2  1  0.0  0.0  0.0  1.0
  Cr  Cr0  1  0.0  0.26  0.99  1.0
  Cr  Cr1  1  0.45  0.0  0.37  1.0
  Os  Os3  1  0.0  0.0  0.36  1.0

data_NaCr2Os
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.9
_cell_length_b   4.53
_cell_length_c   5.13
_cell_angle_alpha   116.21
_cell_angle_beta   106.46
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaCr2Os
_chemical_formula_sum   'Na1 Cr2 Os1'
_cell_volume   57.38
_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
  Na  Na0  1  0.0  0.0  0.0  1.0
  Cr  Cr1  1  0.01  0.27  0.27  1.0
  Cr  Cr2  1  0.08  0.63  0.08  1.0
  Os  Os3  1  0.64  0.64  0.64  1.0

Na Cr Cr Os
NaCr2Os crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one NaCr2Os cluster. Na(1) is bonded in a 3-coordinate geometry to one Cr(1), one Cr(2), and one Os(1) atom. The Na(1)-Cr(1) bond length is 1.39 Å. The Na(1)-Cr(2) bond length is 1.90 Å. The Na(1)-Os(1) bond length is 1.86 Å. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a distorted single-bond geometry to one Na(1) atom. In the second Cr site, Cr(2) is bonded in a distorted single-bond geometry to one Na(1) atom. Os(1) is bonded in a 1-coordinate geometry to one Na(1) atom.