The compound described by Ar is Magnesium structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is zero-dimensional and consists of two 7440-37-1 atoms. Ar(1) is bonded in a 1-coordinate geometry to  atoms. is represented by the CIF card [CIF]
data_Ar
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.986
_cell_length_b   3.986
_cell_length_c   6.625
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   91.163
_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
  Ar  Ar0  1  0.333  0.667  0.250  1.0
  Ar  Ar1  1  0.667  0.333  0.750  1.0
[/CIF]
.
The compound described by Ar is Magnesium structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is zero-dimensional and consists of two 7440-37-1 atoms. Ar(1) is bonded in a 1-coordinate geometry to  atoms. is represented by the CIF card [CIF]
data_Ar
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.986
_cell_length_b   3.986
_cell_length_c   6.625
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   91.163
_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
  Ar  Ar0  1  0.333  0.667  0.250  1.0
  Ar  Ar1  1  0.667  0.333  0.750  1.0
[/CIF]
.