#------------------------------------------------------------------------------
#$Date: 2016-02-13 21:28:24 +0200 (Sat, 13 Feb 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/1/52/88/1528864.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_1528864
loop_
_publ_author_name
'Shanker, V.'
'Samal, S.L.'
'Narayana, C.'
'Pradhan, G.K.'
'Ganguli, A.K.'
_publ_section_title
;
 Nanocrystalline Na Nb O3 and Na Ta O3: Rietveld studies, Raman
 spectroscopy and dielectric properties
;
_journal_name_full               'Solid State Sciences'
_journal_page_first              562
_journal_page_last               569
_journal_volume                  11
_journal_year                    2009
_chemical_formula_sum            'Na Nb O3'
_chemical_name_systematic        'Na (Nb O3)'
_space_group_IT_number           26
_symmetry_space_group_name_Hall  'P 2c -2'
_symmetry_space_group_name_H-M   'P m c 21'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.8636
_cell_length_b                   5.6306
_cell_length_c                   5.5483
_cell_volume                     245.661
_citation_journal_id_ASTM        SSSCFJ
_cod_data_source_file            Shanker_SSSCFJ_2009_1672.cif
_cod_data_source_block           Na1Nb1O3
_cod_original_cell_volume        245.6609
_cod_original_formula_sum        'Na1 Nb1 O3'
_cod_database_code               1528864
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,z+1/2
-x,y,z
x,-y,z+1/2
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
Na1 Na+1 0 0.259 0.75 1 0.0
Na2 Na+1 0.5 0.262 0.778 1 0.0
O4 O-2 0.272 0.943 0.512 1 0.0
O3 O-2 0.22 0.507 0.081 1 0.0
O2 O-2 0.5 0.316 0.313 1 0.0
O1 O-2 0 0.192 0.317 1 0.0
Nb1 Nb+5 0.749 0.753 0.781 1 0.0
