#------------------------------------------------------------------------------
#$Date: 2016-02-13 20:28:24 +0100 (Sat 13 de Feb de 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/1/53/75/1537578.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_1537578
loop_
_publ_author_name
'Layden, G.K.'
_publ_section_title
;
 Dielectric and structure studies of hexagonal Ba Ta2 O6
;
_journal_name_full               'Materials Research Bulletin'
_journal_page_first              349
_journal_page_last               360
_journal_volume                  3
_journal_year                    1968
_chemical_formula_sum            'Ba O6 Ta2'
_chemical_name_systematic        'Ba Ta2 O6'
_space_group_IT_number           191
_symmetry_space_group_name_Hall  '-P 6 2'
_symmetry_space_group_name_H-M   'P 6/m m m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            12
_cell_length_a                   21.14
_cell_length_b                   21.14
_cell_length_c                   3.917
_cell_volume                     1515.982
_citation_journal_id_ASTM        MRBUAC
_cod_data_source_file            Layden_MRBUAC_1968_1654.cif
_cod_data_source_block           Ba1O6Ta2
_cod_original_formula_sum        'Ba1 O6 Ta2'
_cod_database_code               1537578
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
x-y,x,z
-y,x-y,z
-x,-y,z
-x+y,-x,z
y,-x+y,z
-y,-x,-z
x-y,-y,-z
x,x-y,-z
y,x,-z
-x+y,y,-z
-x,-x+y,-z
-x,-y,-z
-x+y,-x,-z
y,-x+y,-z
x,y,-z
x-y,x,-z
-y,x-y,-z
y,x,z
-x+y,y,z
-x,-x+y,z
-y,-x,z
x-y,-y,z
x,x-y,z
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Ba1 Ba+2 0 0 0.5 1 0.0
O9 O-2 0.51 0.17 0 1 0.0
O5 O-2 0.62 0.24 0.5 1 0.0
O7 O-2 0.1 0.2 0 1 0.0
Ba3 Ba+2 0.5 0 0 1 0.0
Ta3 Ta+5 0.5 0.16 0.5 1 0.0
O1 O-2 0.125 0 0.5 1 0.0
O2 O-2 0.28 0.08 0.5 1 0.0
O6 O-2 0.24 0.48 0.5 1 0.0
O8 O-2 0.31 0 0 1 0.0
O4 O-2 0.55 0.1 0.5 1 0.0
Ba4 Ba+2 0.187 0.374 0 1 0.0
Ta2 Ta+5 0.313 0 0.5 1 0.0
O3 O-2 0.41 0.07 0.5 1 0.0
Ta1 Ta+5 0.1 0.2 0.5 1 0.0
Ba2 Ba+2 0.3333 0.6667 0 1 0.0
