data_9008988
_publ_section_title
;
 Second edition. Interscience Publishers, New York, New York
 Sodium peroxide
;
_journal_name_full               'Crystal Structures'
_journal_page_first              85
_journal_page_last               237
_journal_volume                  1
_journal_year                    1963
_chemical_formula_structural     Na2O2
_chemical_formula_sum            'Na2 O2'
_space_group_IT_number           189
_symmetry_space_group_name_Hall  'P -6 -2'
_symmetry_space_group_name_H-M   'P -6 2 m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   6.208
_cell_length_b                   6.208
_cell_length_c                   4.460
_cell_volume                     148.857
_exptl_crystal_density_diffrn    2.610
_cod_database_code               9008988
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-x+y,z
-x+y,-x,-z
y,x,-z
-y,x-y,z
x-y,-y,z
x,y,-z
-x,-x+y,-z
-x+y,-x,z
y,x,z
-y,x-y,-z
x-y,-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Na1 0.29500 0.00000 0.00000
Na2 0.63200 0.00000 0.50000
O1 0.00000 0.00000 0.66800
O2 0.33333 0.66667 0.16800
