#------------------------------------------------------------------------------
#$Date: 2011-09-28 15:24:46 +0100 (Wed, 28 Sep 2011) $
#$Revision: 26848 $
#$URL: svn://www.crystallography.net/cod/cif/2/00/21/2002140.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_2002140
_chemical_name_systematic
;
Hexabarium didysprosium tetraaluminium oxide
;
_chemical_formula_structural       'Ba6 Dy2 Al4 O15'
_chemical_formula_sum              'Al4 Ba6 Dy2 O15'
_publ_section_title
;
Ein neuer Strukturtyp bei Barium-Lanthanoid-Aluminaten: Ba6 Dy2 Al4 O15
;
loop_
_publ_author_name
  'Rueter, I'
  'Mueller-Buschbaum, Hk'
_journal_name_full
;
Zeitschrift fuer Anorganische und Allgemeine Chemie
;
_journal_volume                    573
_journal_year                      1989
_journal_page_first                89
_journal_page_last                 94
_cell_length_a                     5.898(3)
_cell_length_b                     10.183(2)
_cell_length_c                     14.877(11)
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  90
_cell_volume                       893.5
_cell_formula_units_Z              2
_symmetry_space_group_name_H-M     'C m c m'
_symmetry_Int_Tables_number        63
_symmetry_cell_setting             orthorhombic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  'x,-y,-z'
  'x,y,1/2-z'
  'x,-y,1/2+z'
  '-x,-y,-z'
  '-x,y,z'
  '-x,-y,1/2+z'
  '-x,y,1/2-z'
  '1/2+x,1/2+y,z'
  '1/2+x,1/2-y,-z'
  '1/2+x,1/2+y,1/2-z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2-y,-z'
  '1/2-x,1/2+y,z'
  '1/2-x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2-z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Ba2+   2.000
  Dy3+   3.000
  Al3+   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+   4 c 0. 0.9773(3) 0.25 1.  0 d
  Ba2   Ba2+   8 f 0. 0.6588(2) 0.0832(1) 1.  0 d
  Dy1   Dy3+   4 a 0. 0. 0. 1.  0 d
  Al1   Al3+   8 f 0. 0.3265(9) 0.1369(5) 1.  0 d
  O1    O2-   16 h 0.262(3) 0.898(1) 0.416(1) 1.  0 d
  O2    O2-    8 f 0. 0.157(2) 0.110(1) 1.  0 d
  O3    O2-    4 c 0. 0.366(4) 0.25 1.  0 d
  O4    O2-    4 c 0. 0.703(7) 0.25 0.5  0 d
_refine_ls_R_factor_all            0.066
_cod_database_code 2002140