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#$Date: 2016-02-14 14:26:36 +0000 (Sun, 14 Feb 2016) $
#$Revision: 176435 $
#$URL: svn://www.crystallography.net/cod/cif/2/10/15/2101592.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_2101592
loop_
_publ_author_name
'Abrahams, S. C.'
_publ_section_title
;
 New ferroelectric inorganic materials predicted in point group
 4<i>mm</i>
;
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              790
_journal_page_last               805
_journal_paper_doi               10.1107/S0108768196004594
_journal_volume                  52
_journal_year                    1996
_chemical_formula_sum            'Cu K Na2 O2'
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'I 4 -2'
_symmetry_space_group_name_H-M   'I 4 m m'
_cell_angle_alpha                90.0
_cell_angle_beta                 90.0
_cell_angle_gamma                90.0
_cell_length_a                   4.327(3)
_cell_length_b                   4.327(3)
_cell_length_c                   10.891(5)
_cell_volume                     203.9(2)
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_cod_data_source_file            an0527.cif
_cod_data_source_block           AN0527r
_cod_original_formula_sum        'Cu1 K1 Na2 O2'
_cod_database_code               2101592
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Cu .0 .0 .0
K .0 .0 .5810(11)
Na .5000 .0 .266(2)
O1 .0 .0 .833(3)
O2 .0 .0 .159(3)