data_global
_amcsd_formula_title 'F2 H Na'
loop_
_publ_author_name
'Andersen C'
'Hassel O'
_journal_name_full 'Zeitschrift fur Physikalische Chemie'
_journal_volume 123 
_journal_year 1926
_journal_page_first 151
_journal_page_last 159
_publ_section_title
;
 Die Struktur des kristallisierten Natriumhydrofluorids und die Gestalt
 des Ions H F2^-^
 _cod_database_code 1010284
;
_database_code_amcsd 0017210
_chemical_formula_sum 'Na H F2'
_cell_length_a 5.05
_cell_length_b 5.05
_cell_length_c 5.05
_cell_angle_alpha 40.03
_cell_angle_beta 40.03
_cell_angle_gamma 40.03
_cell_volume 48.008
_exptl_crystal_density_diffrn      2.144
_symmetry_space_group_name_H-M 'R -3'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-z,-x,-y'
  'y,z,x'
  '-x,-y,-z'
  'z,x,y'
  '-y,-z,-x'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Na1   0.00000   0.00000   0.00000
H1   0.50000   0.50000   0.50000
F1   0.41000   0.41000   0.41000