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#$Date: 2016-02-13 21:28:24 +0200 (Sat, 13 Feb 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/2/10/72/2107219.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_2107219
loop_
_publ_author_name
'Becht, H.Y.'
'Struikmans, R.'
_publ_section_title
;
 A monoclinic high-temperature modification of potassium carbonate
;
_journal_name_full               'Acta Crystallographica B (24,1968-38,1982)'
_journal_page_first              3344
_journal_page_last               3346
_journal_volume                  32
_journal_year                    1976
_chemical_formula_sum            'C K2 O3'
_chemical_name_systematic        'K2 (C O3)'
_space_group_IT_number           15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 96.8
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.675
_cell_length_b                   9.92
_cell_length_c                   7.018
_cell_volume                     392.306
_citation_journal_id_ASTM        ACBCAR
_cod_data_source_file            Becht_ACBCAR_1976_1433.cif
_cod_data_source_block           C1K2O3
_cod_original_cell_volume        392.3061
_cod_original_formula_sum        'C1 K2 O3'
_cod_database_code               2107219
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,y,-z+1/2
-x,-y,-z
x,-y,z-1/2
x+1/2,y+1/2,z
-x+1/2,y+1/2,-z+1/2
-x+1/2,-y+1/2,-z
x+1/2,-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
O1 O-2 0.5 0.702 0.75 1 0.0
K2 K+1 0 0.332 0.25 1 0.0
O2 O-2 0.678 0.895 0.707 1 0.0
K1 K+1 0.5 0.5 0.5 1 0.0
C1 C+4 0 0.333 0.75 1 0.0
