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#$Date: 2016-02-13 21:28:24 +0200 (Sat, 13 Feb 2016) $
#$Revision: 176429 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/52/12/1521248.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_1521248
loop_
_publ_author_name
'Istomin, S.Ya.'
'Hannerz, H.'
'Svensson, G.'
'Koehler, J.'
_publ_section_title
;
 An X-ray powder and electron diffraction study of reduced tantalates with
 the perovskite structure, Na1-x Srx Ta O3, 0<x<4
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              427
_journal_page_last               434
_journal_volume                  154
_journal_year                    2000
_chemical_formula_sum            'Na0.7 O3 Sr0.3 Ta'
_chemical_name_systematic        '(Na0.7 Sr0.3) (Ta O3)'
_space_group_IT_number           123
_symmetry_space_group_name_Hall  '-P 4 2'
_symmetry_space_group_name_H-M   'P 4/m m m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            1
_cell_length_a                   3.94756
_cell_length_b                   3.94756
_cell_length_c                   3.93993
_cell_volume                     61.397
_citation_journal_id_ASTM        JSSCBI
_cod_data_source_file            Istomin_JSSCBI_2000_2000.cif
_cod_data_source_block           Na0.7O3Sr0.3Ta1
_cod_original_cell_volume        61.39684
_cod_original_formula_sum        'Na0.7 O3 Sr0.3 Ta1'
_cod_database_code               1521248
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x,z
-x,-y,z
y,-x,z
x,-y,-z
y,x,-z
-x,y,-z
-y,-x,-z
-x,-y,-z
y,-x,-z
x,y,-z
-y,x,-z
-x,y,z
-y,-x,z
x,-y,z
y,x,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
Sr1 Sr+2 0 0 0 0.3 0.0
O1 O-2 0.5 0.5 0 1 0.0
O2 O-2 0.5 0 0.5 1 0.0
Na1 Na+1 0 0 0 0.7 0.0
Ta1 Ta+4 0.5 0.5 0.5 1 0.0