The structure described by NaAc crystallizes in the hexagonal P-6m2 space group. Na(1) is bonded to six equivalent Na(1) and six equivalent Ac(1) atoms to form NaNa6Ac6 cuboctahedra that share corners with eighteen equivalent Na(1)Na6Ac6 cuboctahedra, edges with six equivalent Na(1)Na6Ac6 cuboctahedra, edges with twelve equivalent Ac(1)Na6Ac6 cuboctahedra, faces with eight equivalent Na(1)Na6Ac6 cuboctahedra, and faces with twelve equivalent Ac(1)Na6Ac6 cuboctahedra. Ac(1) is bonded to six equivalent Na(1) and six equivalent Ac(1) atoms to form AcNa6Ac6 cuboctahedra that share corners with eighteen equivalent Ac(1)Na6Ac6 cuboctahedra, edges with six equivalent Ac(1)Na6Ac6 cuboctahedra, edges with twelve equivalent Na(1)Na6Ac6 cuboctahedra, faces with eight equivalent Ac(1)Na6Ac6 cuboctahedra, and faces with twelve equivalent Na(1)Na6Ac6 cuboctahedra. is represented by the CIF card [CIF]
data_NaAc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.884
_cell_length_b   3.884
_cell_length_c   6.518
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   85.134
_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  0.000  0.000  0.000  1.0
  Ac  Ac1  1  0.333  0.667  0.500  1.0
[/CIF]
.
The structure described by NaAc crystallizes in the hexagonal P-6m2 space group. Na(1) is bonded to six equivalent Na(1) and six equivalent Ac(1) atoms to form NaNa6Ac6 cuboctahedra that share corners with eighteen equivalent Na(1)Na6Ac6 cuboctahedra, edges with six equivalent Na(1)Na6Ac6 cuboctahedra, edges with twelve equivalent Ac(1)Na6Ac6 cuboctahedra, faces with eight equivalent Na(1)Na6Ac6 cuboctahedra, and faces with twelve equivalent Ac(1)Na6Ac6 cuboctahedra. Ac(1) is bonded to six equivalent Na(1) and six equivalent Ac(1) atoms to form AcNa6Ac6 cuboctahedra that share corners with eighteen equivalent Ac(1)Na6Ac6 cuboctahedra, edges with six equivalent Ac(1)Na6Ac6 cuboctahedra, edges with twelve equivalent Na(1)Na6Ac6 cuboctahedra, faces with eight equivalent Ac(1)Na6Ac6 cuboctahedra, and faces with twelve equivalent Na(1)Na6Ac6 cuboctahedra. is represented by the CIF card [CIF]
data_NaAc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.884
_cell_length_b   3.884
_cell_length_c   6.518
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   85.134
_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  0.000  0.000  0.000  1.0
  Ac  Ac1  1  0.333  0.667  0.500  1.0
[/CIF]
.