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#$Date: 2011-09-17 21:27:16 +0100 (Sat, 17 Sep 2011) $
#$Revision: 26029 $
#$URL: svn://www.crystallography.net/cod/cif/2/2000581.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_2000581
loop_
_publ_author_name
'Ichikawa, M.'
'Sato, S.'
'Komukae, M.'
'Osaka, T.'
_publ_section_title
;
 Structure of ferroelastic K~3~H(SeO~4~)~2~
;
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1569
_journal_page_last               1571
_journal_volume                  48
_journal_year                    1992
_chemical_formula_moiety         'H1,3K1,2(O4 Se1)'
_chemical_formula_sum            'H K3 O8 Se2'
_[local]_cod_chemical_formula_sum_orig 'H1 K3 O8 Se2'
_chemical_formula_weight         404.2
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-A 2a'
_symmetry_space_group_name_H-M   'A 1 1 2/a'
_cell_angle_alpha                90
_cell_angle_beta                 103.640(8)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.1291(8)
_cell_length_b                   5.9038(5)
_cell_length_c                   14.9610(10)
_cell_volume                     869.50(10)
_diffrn_radiation_type           Mo
_diffrn_radiation_wavelength     0.71073
_exptl_absorpt_coefficient_mu    9.86
_exptl_crystal_density_diffrn    3.086
_exptl_crystal_F_000             760
_[local]_cod_data_source_file    ab0265.cif
_[local]_cod_data_source_block   ab0265a
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
K(1) .25000 .75538(18) .0
K(2) .65190(7) .73701(13) .19654(5)
Se .46014(3) .23210(5) .11609(2)
O(1) .3988(3) .0129(4) .15747(16)
O(2) .4348(2) .1814(4) .00184(14)
O(3) .62361(19) .2498(5) .15443(15)
O(4) .3826(3) .4641(4) .12910(17)
H .50000 .0 .0
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
K(1) O(1) 2.909(2)
K(1) O(2) 3.131(3)
K(1) O(2) 3.222(2)
K(1) O(3) 2.894(2)
K(1) O(4) 2.696(3)
K(2) O(1) 2.977(3)
K(2) O(1) 3.077(3)
K(2) O(1) 2.782(3)
K(2) O(2) 2.930(2)
K(2) O(3) 2.944(3)
K(2) O(3) 3.092(3)
K(2) O(3) 2.785(2)
K(2) O(4) 3.124(3)
K(2) O(4) 3.000(3)
K(2) O(4) 3.236(3)
Se O(1) 1.620(2)
Se O(2) 1.694(2)
Se O(3) 1.623(2)
Se O(4) 1.614(2)
O(1) O(2) 2.635(3)
O(1) O(3) 2.682(3)
O(1) O(4) 2.696(3)
O(2) O(3) 2.641(3)
O(2) O(4) 2.677(3)
O(3) O(4) 2.696(3)
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
O(1) Se O(2) 105.30(10)
O(1) Se O(3) 111.60(10)
O(1) Se O(4) 113.00(10)
O(2) Se O(3) 105.50(10)
O(2) Se O(4) 108.00(10)
O(3) Se O(4) 112.80(10)
_cod_database_code 2000581