data_2002658
_chemical_name_systematic
;
Barium lead manganese aluminium oxide (1/1.5/6/2/16)
;
_chemical_formula_structural       'Ba Pb1.5 (Mn6 Al2) O16'
_chemical_formula_sum              'Al2 Ba Mn6 O16 Pb1.5'
_publ_section_title
;
Eine neue Phase der Zusammensetzung Ba Pb1.5 Mn6 Al2 O16
;
loop_
_publ_author_name
  'Teichert, A'
  'Mueller-Buschbaum, Hk'
_journal_name_full                 'Journal of Alloys Compd.'
_journal_volume                    202
_journal_year                      1993
_journal_page_first                37
_journal_page_last                 40
_cell_length_a                     9.219(3)
_cell_length_b                     2.8285(12)
_cell_length_c                     12.113(3)
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  90
_cell_volume                       315.9
_cell_formula_units_Z              1
_symmetry_space_group_name_H-M     'P n m a'
_symmetry_Int_Tables_number        62
_symmetry_cell_setting             orthorhombic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '1/2+x,1/2-y,1/2-z'
  '-x,1/2+y,-z'
  '1/2-x,-y,1/2+z'
  '-x,-y,-z'
  '1/2-x,1/2+y,1/2+z'
  'x,1/2-y,z'
  '1/2+x,y,1/2-z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Al3+   3.000
  Mn4+   3.500
  Ba2+   2.000
  Pb2+   2.000
  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
  Al1   Al3+   4 c 0.0139(4) 0.25 0.6088(3) 0.25  0 d
  Mn1   Mn4+   4 c 0.0139(4) 0.25 0.6088(3) 0.75  0 d
  Al2   Al3+   4 c 0.6941(4) 0.25 0.3310(3) 0.25  0 d
  Mn2   Mn4+   4 c 0.6941(4) 0.25 0.3310(3) 0.75  0 d
  Ba1   Ba2+   4 c 0.8602(5) 0.25 0.1038(5) 0.25  0 d
  Pb1   Pb2+   4 c 0.1519(8) 0.25 0.9205(6) 0.125  0 d
  Pb2   Pb2+   8 d 0.1465(7) 0.9593(22) 0.9067(5) 0.125  0 d
  O1    O2-    4 c 0.5908(17) 0.25 0.1714(14) 1.  0 d
  O2    O2-    4 c 0.1753(18) 0.25 0.7165(14) 1.  0 d
  O3    O2-    4 c 0.9095(16) 0.25 0.9022(14) 1.  0 d
  O4    O2-    4 c 0.3857(19) 0.25 0.0295(15) 1.  0 d
_refine_ls_R_factor_all            0.109