#------------------------------------------------------------------------------
#$Date: 2008-01-13 22:15:36 +0000 (Sun, 13 Jan 2008) $
#$Revision: 14 $
#$URL: svn://www.crystallography.net/cod/cif/2/2002163.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_2002163
_chemical_name_systematic
;
Barium iridium niobium oxide chloride (6/1/2/12/2)
;
_chemical_formula_structural       'Ba6 Ir Nb2 O12 Cl2'
_chemical_formula_sum              'Ba6 Cl2 Ir Nb2 O12'
_publ_section_title
;
Roentgenstrukturanalyse verzwillingter Einkristalle von Ba6IrNb2O12Cl2
;
loop_
_publ_author_name
  'Wilkens, J'
  'Mueller-Buschbaum, Hk'
_journal_name_full                 'Journal of Alloys Compd.'
_journal_volume                    179
_journal_year                      1992
_journal_page_first                187
_journal_page_last                 193
_cell_length_a                     5.890(1)
_cell_length_b                     5.890(1)
_cell_length_c                     14.906(3)
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  120
_cell_volume                       447.8
_cell_formula_units_Z              1
_symmetry_space_group_name_H-M     'P -3 m 1'
_symmetry_Int_Tables_number        164
_symmetry_cell_setting             trigonal
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-y,x-y,z'
  'y-x,-x,z'
  '-y,-x,z'
  'x,x-y,z'
  'y-x,y,z'
  '-x,-y,-z'
  'y,y-x,-z'
  'x-y,x,-z'
  'y,x,-z'
  '-x,y-x,-z'
  'x-y,-y,-z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Ba2+   2.000
  Ir4+   4.000
  Nb5+   5.000
  Cl1-  -1.000
  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 0.3333 0.6667 0.0777(2) 1.  0 d
  Ba2   Ba2+   2 d 0.3333 0.6667 0.7827(2) 1.  0 d
  Ba3   Ba2+   2 d 0.3333 0.6667 0.3777(2) 1.  0 d
  Ir1   Ir4+   1 a 0. 0. 0. 1.  0 d
  Nb1   Nb5+   2 c 0. 0. 0.1855(2) 1.  0 d
  Cl1   Cl1-   2 d 0.3333 0.6667 0.587(1) 1.  0 d
  O1    O2-    6 i 0.169(2) -0.169(2) 0.241(1) 1.  0 d
  O2    O2-    6 i 0.159(1) -0.159(1) 0.917(1) 1.  0 d
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_22
_atom_site_aniso_U_23
_atom_site_aniso_U_33
  Ba1   0.0159(5) 0.008 0. 0.0159 0. 0.025(1)
  Ba2   0.0195(8) 0.0098 0. 0.0295 0. 0.028(1)
  Ba3   0.046(1) 0.023 0. 0.046 0. 0.017
  Ir1   0.0100(5) 0.005 0. 0.01 0. 0.017(1)
  Nb1   0.0024(7) 0.0012 0. 0.0024 0. 0.017(1)
  Cl1   0.128(1) 0.064 0. 0.128 0. 0.014(1)
_refine_ls_R_factor_all            0.069