data_global
_chemical_name_mineral 'Fluorine'
loop_
_publ_author_name
'Pauling L'
'Keaveny I'
'Robinson A B'
_journal_name_full 'Journal of Solid State Chemistry'
_journal_volume 2 
_journal_year 1970
_journal_page_first 225
_journal_page_last 227
_publ_section_title
;
 The crystal structure of alpha-fluorine
 Note: alpha phase
 Note: T = 23 K
 Sample: stable below 45.6 K
;
_database_code_amcsd 0013291
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'F'
_cell_length_a 5.50
_cell_length_b 3.28
_cell_length_c 7.28
_cell_angle_alpha 90
_cell_angle_beta 102.17
_cell_angle_gamma 90
_cell_volume 128.380
_exptl_crystal_density_diffrn      1.966
_symmetry_space_group_name_H-M 'C 1 2/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,1/2-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
F   0.28500   0.31700   0.09970