data_2002622
_publ_section_title
;
Das erste Alkali-Erdalkalimetall-Oxo/Peroxo-Aurat(III): Na Ba4 Au O4
(O2)2
;
_journal_name_full
;
Zeitschrift fuer Anorganische und Allgemeine Chemie
;
_journal_page_first              537
_journal_page_last               539
_journal_paper_doi               10.1002/zaac.19936190319
_journal_volume                  619
_journal_year                    1993
_chemical_formula_structural     'Na Ba4 (Au O4 (O2)2)'
_chemical_formula_sum            'Au Ba4 Na O8'
_chemical_name_systematic        'Sodium tetrabarium diperoxotetraoxoaurate'
_space_group_IT_number           139
_symmetry_cell_setting           tetragonal
_symmetry_Int_Tables_number      139
_symmetry_space_group_name_Hall  '-I 4 2'
_symmetry_space_group_name_H-M   'I 4/m m m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   5.9394(12)
_cell_length_b                   5.9394(12)
_cell_length_c                   15.3928(52)
_cell_volume                     543.0
_refine_ls_R_factor_all          0.07
_cod_database_code               2002622
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,z
-x,y,z
x,-y,z
-y,x,z
y,-x,z
y,x,z
-y,-x,z
-x,-y,-z
x,y,-z
x,-y,-z
-x,y,-z
y,-x,-z
-y,x,-z
-y,-x,-z
y,x,-z
1/2+x,1/2+y,1/2+z
1/2-x,1/2-y,1/2+z
1/2-x,1/2+y,1/2+z
1/2+x,1/2-y,1/2+z
1/2-y,1/2+x,1/2+z
1/2+y,1/2-x,1/2+z
1/2+y,1/2+x,1/2+z
1/2-y,1/2-x,1/2+z
1/2-x,1/2-y,1/2-z
1/2+x,1/2+y,1/2-z
1/2+x,1/2-y,1/2-z
1/2-x,1/2+y,1/2-z
1/2+y,1/2-x,1/2-z
1/2-y,1/2+x,1/2-z
1/2-y,1/2-x,1/2-z
1/2+y,1/2+x,1/2-z
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_attached_hydrogens
_atom_site_calc_flag
Au1 Au3+ 2 a 0. 0. 0. 1. 0 d
Na1 Na1+ 2 b 0. 0. 0.5 1. 0 d
Ba1 Ba2+ 8 g 0. 0.5 0.1178(2) 1. 0 d
O1 O1- 4 e 0. 0. 0.350(3) 1. 0 d
O2 O1- 4 e 0. 0. 0.257(4) 1. 0 d
O3 O2- 8 h 0.235(4) 0.235(4) 0. 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Au3+ 3.000
Na1+ 1.000
Ba2+ 2.000
O1- -1.000
O2- -2.000
