#------------------------------------------------------------------------------
#$Date: 2012-02-28 17:44:07 +0200 (Tue, 28 Feb 2012) $
#$Revision: 35913 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/01/28/9012849.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_9012849
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 Nb3 O8'
_chemical_name_mineral           NaNb3O8
_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                   7.3244
_cell_length_b                   10.3100
_cell_length_c                   7.0426
_cell_volume                     531.819
_exptl_crystal_density_diffrn    5.367
_cod_database_code               9012849
_amcsd_database_code             AMCSD#0013769
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_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 0.02090 0.01064 0.01647 0.00000 0.00000 0.00000
Nb1 0.00407 0.00382 0.00532 0.00000 0.00000 0.00000
Nb2 0.00388 0.00503 0.00671 0.00050 0.00000 0.00000
O1 0.00456 0.00925 0.01520 -0.00064 0.00000 0.00000
O2 0.00697 0.00925 0.00507 0.00241 0.00000 0.00000
O3 0.00823 0.00735 0.00773 0.00241 0.00025 0.00190
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Na 0.00000 0.00000 0.25000
Nb1 0.00000 0.50000 0.75000
Nb2 0.25239 0.26430 0.00000
O1 0.98330 0.16700 0.00000
O2 0.10670 0.42370 0.00000
O3 0.19850 0.36110 0.29960