#------------------------------------------------------------------------------
#$Date: 2010-01-30 15:59:17 +0200 (Sat, 30 Jan 2010) $
#$Revision: 966 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/9012848.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided the American Mineralogist Crystal Structure Database,
# http://rruff.geo.arizona.edu/AMS/amcsd.php
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_9012848
loop_
_publ_author_name
'Range, K. J.'
'Wildenauer, M.'
'Heyns, A. M.'
_publ_section_title
;
 Extrem kurze nichtbindende sauerstoff-sauerstoff-abstaende: Die
 kristallstrukturen von NbBO4, NaNb3O8 und NaTa3O8
 Note: data from ICSD
;
_journal_name_full               'Angewandte Chemie'
_journal_page_first              973
_journal_page_last               975
_journal_volume                  100
_journal_year                    1988
_chemical_formula_sum            'Na O8 Ta3'
_chemical_name_mineral           NaTa3O8
_space_group_IT_number           72
_symmetry_space_group_name_Hall  '-I 2 2c'
_symmetry_space_group_name_H-M   'I b a m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   7.242
_cell_length_b                   10.462
_cell_length_c                   7.001
_cell_volume                     530.436
_[local]_cod_data_source_file    12957.cif
_[local]_cod_data_source_block   global
_[local]_cod_chemical_formula_sum_orig 'Na Ta3 O8'
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
1/2+x,1/2+y,1/2+z
x,-y,1/2+z
1/2+x,1/2-y,+z
-x,y,1/2-z
1/2-x,1/2+y,-z
-x,y,1/2+z
1/2-x,1/2+y,+z
x,-y,1/2-z
1/2+x,1/2-y,-z
x,y,-z
1/2+x,1/2+y,1/2-z
-x,-y,z
1/2-x,1/2-y,1/2+z
-x,-y,-z
1/2-x,1/2-y,1/2-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Na 0.00000 0.00000 0.25000
Ta1 0.00000 0.50000 0.75000
Ta2 0.23850 0.26420 0.00000
O1 0.99020 0.17420 0.00000
O2 0.11830 0.43220 0.00000
O3 0.19260 0.35700 0.29710
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Na 0.05360 0.02420 0.03850 0.00000 0.00000 0.00000
Ta1 0.00270 0.00200 0.00170 0.00000 0.00000 0.00000
Ta2 0.00240 0.00290 0.00290 0.00000 0.00000 0.00070
O1 0.00200 0.00720 0.01340 0.00000 0.00000 -0.00060
O2 0.00080 0.00540 0.00640 0.00000 0.00000 -0.00140
O3 0.00690 0.00560 0.00580 0.00070 0.00110 0.00200
_cod_database_code 9012848