data_9012848
_publ_section_title
;
 Extrem kurze nichtbindende sauerstoff-sauerstoff-abstaende: Die
 kristallstrukturen von NbBO4, NaNb3O8 und NaTa3O8
 Note: data from ICSD
;
_journal_name_full               'Angewandte Chemie'
_journal_page_first              973
_journal_page_last               975
_journal_paper_doi               10.1002/ange.19881000721
_journal_volume                  100
_journal_year                    1988
_chemical_formula_structural     NaTa3O8
_chemical_formula_sum            'Na O8 Ta3'
_space_group_IT_number           72
_symmetry_space_group_name_Hall  '-I 2 2c'
_symmetry_space_group_name_H-M   'I b a m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   7.242
_cell_length_b                   10.462
_cell_length_c                   7.001
_cell_volume                     530.436
_exptl_crystal_density_diffrn    8.688
_[local]_cod_chemical_formula_sum_orig 'Na Ta3 O8'
_cod_database_code               9012848
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
1/2+x,1/2+y,1/2+z
x,-y,1/2+z
1/2+x,1/2-y,+z
-x,y,1/2-z
1/2-x,1/2+y,-z
-x,y,1/2+z
1/2-x,1/2+y,+z
x,-y,1/2-z
1/2+x,1/2-y,-z
x,y,-z
1/2+x,1/2+y,1/2-z
-x,-y,z
1/2-x,1/2-y,1/2+z
-x,-y,-z
1/2-x,1/2-y,1/2-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Na 0.00000 0.00000 0.25000
Ta1 0.00000 0.50000 0.75000
Ta2 0.23850 0.26420 0.00000
O1 0.99020 0.17420 0.00000
O2 0.11830 0.43220 0.00000
O3 0.19260 0.35700 0.29710
