#------------------------------------------------------------------------------
#$Date: 2015-07-14 00:50:49 +0200 (mar 14 de jul de 2015) $
#$Revision: 151425 $
#$URL: svn://www.crystallography.net/cod/cif/2/10/65/2106575.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# 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_2106575
loop_
_publ_author_name
'Okada, K.'
'Morikawa, H.'
'Marumo, F.'
'Iwai, S.I.'
_publ_section_title
;
 Disodium ditungstate
;
_journal_name_full               'Acta Crystallographica B (24,1968-38,1982)'
_journal_page_first              1200
_journal_page_last               1201
_journal_volume                  31
_journal_year                    1975
_chemical_formula_sum            'Na2 O7 W2'
_chemical_name_systematic        'Na2 (W2 O7)'
_space_group_IT_number           64
_symmetry_space_group_name_Hall  '-C 2ac 2'
_symmetry_space_group_name_H-M   'C m c a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   7.216
_cell_length_b                   11.899
_cell_length_c                   14.716
_cell_volume                     1263.563
_citation_journal_id_ASTM        ACBCAR
_cod_data_source_file            Okada_ACBCAR_1975_1967.cif
_cod_data_source_block           Na2O7W2
_cod_database_code               2106575
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x+1/2,-y,z+1/2
x,-y,-z
-x+1/2,y,-z+1/2
-x,-y,-z
x-1/2,y,-z-1/2
-x,y,z
x-1/2,-y,z-1/2
x+1/2,y+1/2,z
-x+1,-y+1/2,z+1/2
x+1/2,-y+1/2,-z
-x+1,y+1/2,-z+1/2
-x+1/2,-y+1/2,-z
x,y+1/2,-z-1/2
-x+1/2,y+1/2,z
x,-y+1/2,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
O2 O-2 0.1991 0.4927 0.3361 1 0.0
W1 W+6 0.25 0.08606 0.25 1 0.0
O5 O-2 0 0.359 0.5019 1 0.0
O4 O-2 0 0.3755 0.0289 1 0.0
O1 O-2 0.2042 0.2323 0.1554 1 0.0
W2 W+6 0 0.24688 0.08537 1 0.0
Na1 Na+1 0.2507 0 0 1 0.0
Na2 Na+1 0 0.3259 0.3443 1 0.0
O3 O-2 0 0.1256 0.2816 1 0.0
