data_1008841
_chemical_name_systematic          'Barium dodecairon(III) oxide'
_chemical_formula_structural       'Ba Fe12 O19'
_chemical_formula_sum              'Ba Fe12 O19'
_publ_section_title
;
X-ray analysis of the structural and dynamic properties of Ba Fe12 O19
hexagonal ferrite at room temperature
;
loop_
_publ_author_name
  'Obradors, X'
  'Collomb, A'
  'Pernet, M'
  'Samaras, D'
  'Joubert, J C'
_journal_name_full                 'Journal of Solid State Chemistry'
_journal_coden_ASTM                JSSCBI
_journal_volume                    56
_journal_year                      1985
_journal_page_first                171
_journal_page_last                 181
_cell_length_a                     5.8920(1)
_cell_length_b                     5.8920(1)
_cell_length_c                     23.183(1)
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  120
_cell_volume                       697.0
_cell_formula_units_Z              2
_symmetry_space_group_name_H-M     'P 63/m m c'
_symmetry_Int_Tables_number        194
_symmetry_cell_setting             hexagonal
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-y,x-y,z'
  'y-x,-x,z'
  '-y,-x,z'
  'y-x,y,z'
  'x,x-y,z'
  '-x,-y,-z'
  'y,y-x,-z'
  'x-y,x,-z'
  'y,x,-z'
  'x-y,-y,-z'
  '-x,y-x,-z'
  '-x,-y,1/2+z'
  'y,y-x,1/2+z'
  'x-y,x,1/2+z'
  'y,x,1/2+z'
  'x-y,-y,1/2+z'
  '-x,y-x,1/2+z'
  'x,y,1/2-z'
  '-y,x-y,1/2-z'
  'y-x,-x,1/2-z'
  '-y,-x,1/2-z'
  'y-x,y,1/2-z'
  'x,x-y,1/2-z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Ba2+   2.000
  Fe3+   3.000
  O2-   -2.000
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
  Ba1   Ba2+   2 d 0.6667 0.3333 0.25 1.  0 d
  Fe1   Fe3+   2 a 0. 0. 0. 1.  0 d
  Fe2   Fe3+   4 e 0. 0. 0.25733(4) 0.5  0 d
  Fe3   Fe3+   4 f 0.3333 0.6667 0.02713(2) 1.  0 d
  Fe4   Fe3+   4 f 0.3333 0.6667 0.19030(2) 1.  0 d
  Fe5   Fe3+  12 k 0.16868 0.33735(7) -0.10825(1) 1.  0 d
  O1    O2-    4 e 0. 0. 0.15094(13) 1.  0 d
  O2    O2-    4 f 0.3333 0.6667 -0.05454(12) 1.  0 d
  O3    O2-    6 h 0.18213 0.36426(47) 0.25 1.  0 d
  O4    O2-   12 k 0.15647 0.31294(35) 0.05192(8) 1.  0 d
  O5    O2-   12 k 0.5026 0.00520(34) 0.14957(8) 1.  0 d
_refine_ls_R_factor_all            0.016