#------------------------------------------------------------------------------
#$Date: 2012-09-06 17:30:34 +0300 (Thu, 06 Sep 2012) $
#$Revision: 65967 $
#$URL: file:///home/coder/svn-repositories/cod/cif/2/10/52/2105204.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_2105204
loop_
_publ_author_name
'Voronin, Vladimir I.'
'Shekhtman, Georgi Sh.'
'Blatov, Vladislav A.'
_publ_section_title
;
 The natural tiling approach to cation conductivity in KAlO~2~ polymorphs
;
_journal_coeditor_code           KD5061
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              356
_journal_page_last               363
_journal_volume                  68
_journal_year                    2012
_chemical_formula_analytical     'Al2 O4, 2(K)'
_chemical_formula_moiety         'Al2 O4, 2(K)'
_chemical_formula_structural     'Al2 O4, 2(K)'
_chemical_formula_sum            'Al2 K2 O4'
_chemical_formula_weight         196.16
_chemical_name_systematic        ' ?'
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_cell_angle_alpha                90.00000
_cell_angle_beta                 90.00000
_cell_angle_gamma                90.00000
_cell_formula_units_Z            8
_cell_length_a                   5.4788(5)
_cell_length_b                   11.0123(11)
_cell_length_c                   15.5359(18)
_cell_measurement_temperature    700
_cell_volume                     937.35(17)
_computing_structure_refinement  FULLPROF
_diffrn_ambient_temperature      700
_diffrn_measurement_device_type  'HPRT neutron'
_diffrn_radiation_type           neutron
_diffrn_radiation_wavelength     1.88570
_exptl_crystal_density_diffrn    2.780
_pd_instr_location               ' 'PSI, Switzerland''
_pd_meas_2theta_range_inc        0.100000
_pd_meas_2theta_range_max        164.89999
_pd_meas_2theta_range_min        4.60000
_pd_meas_number_of_points        1604
_pd_proc_2theta_range_inc        0.100000
_pd_proc_2theta_range_max        164.8471
_pd_proc_2theta_range_min        4.5471
_pd_proc_ls_background_function  'linear interpolation'
_pd_proc_ls_pref_orient_corr     ' ?'
_pd_proc_ls_profile_function     pseudo-Voigt
_pd_proc_ls_prof_R_factor        4.7009
_pd_proc_ls_prof_wR_expected     4.8628
_pd_proc_ls_prof_wR_factor       5.9145
_pd_proc_wavelength              1.885700
_pd_spec_mounting                ' ?'
_refine_ls_goodness_of_fit_all   1.4794
_refine_ls_number_parameters     70
_refine_ls_number_reflns         577
_refine_ls_number_restraints     0
_[local]_cod_data_source_file    kd5061.cif
_[local]_cod_data_source_block   KAlO2_700
_[local]_cod_cif_authors_sg_H-M  'P B C A'
_cod_database_code               2105204
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
x+1/2,-y+1/2,-z
-x,y+1/2,-z+1/2
-x+1/2,-y,z+1/2
-x,-y,-z
-x+1/2,y+1/2,z
x,-y+1/2,z+1/2
x+1/2,y,-z+1/2
loop_
_atom_site_type_symbol
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
AL Al1 0.255(2) 0.0106(14) 0.1849(12) 0.0164(13) Uiso 1.00000
AL Al2 0.2783(19) 0.2600(12) 0.0632(12) 0.0164(13) Uiso 1.00000
K K1 0.749(3) 0.0045(15) 0.067(2) 0.054(12) Uani 1.00000
K K2 0.774(2) 0.2593(12) 0.1897(14) 0.030(8) Uani 1.00000
O O1 0.5622(19) 0.2773(11) 0.0163(6) 0.042(5) Uani 1.00000
O O2 0.1872(18) 0.3957(9) 0.1095(6) 0.029(4) Uani 1.00000
O O3 0.2938(16) 0.1493(10) 0.1444(7) 0.042(6) Uani 1.00000
O O4 0.048(2) 0.4878(10) 0.2750(9) 0.043(8) Uani 1.00000
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
_atom_site_aniso_type_symbol
K1 0.022(5) 0.031(6) 0.11(2) 0.00000 0.024(14) 0.00000 K
K2 0.022(5) 0.031(6) 0.038(13) 0.00000 -0.010(6) 0.00000 K
O1 0.028(4) 0.074(8) 0.025(6) 0.00000 0.0003(4) 0.00000 O
O2 0.0053(11) 0.021(5) 0.061(7) 0.00000 -0.006(5) 0.00000 O
O3 0.0138(17) 0.056(7) 0.057(8) 0.00000 -0.008(5) 0.00000 O
O4 0.021(5) 0.068(10) 0.040(8) 0.00000 0.013(5) 0.00000 O
loop_
_atom_type_symbol
_atom_type_scat_length_neutron
_atom_type_scat_source
AL 0.34490 V.F._Sears_Neutron_News_3_26_(1992)
K 0.36700 V.F._Sears_Neutron_News_3_26_(1992)
O 0.58030 V.F._Sears_Neutron_News_3_26_(1992)
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle
O2 Al1 O3 9_655 10_555 112.731
O2 Al1 O4 9_655 11_556 107.380
O2 Al1 O4 9_655 12_655 108.251
O3 Al1 O4 10_555 11_556 112.229
O3 Al1 O4 10_555 12_655 110.365
O4 Al1 O4 11_556 12_655 105.542
O1 Al2 O1 8_555 9_565 109.597
O1 Al2 O2 8_555 10_555 108.421
O1 Al2 O3 8_555 11_555 109.623
O1 Al2 O2 9_565 10_555 107.400
O1 Al2 O3 9_565 11_555 112.005
O2 Al2 O3 10_555 11_555 108.331
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
Al1 O2 6_545 1.753(19)
Al1 O3 . 1.666(19)
Al1 O4 3_545 1.791(17)
Al1 O4 6_545 1.79(2)
Al2 O1 . 1.728(16)
Al2 O1 2_455 1.760(18)
Al2 O2 . 1.732(17)
Al2 O3 . 1.76(2)
K1 O1 6_645 2.82(2)
K1 O2 2_555 2.98(3)
K1 O2 6_545 2.75(2)
K1 O4 3_645 2.70(3)
K2 O1 . 2.94(2)
K2 O2 1_655 2.991(17)
K2 O3 . 2.978(15)
K2 O3 8_555 2.85(2)
K2 O4 8_555 2.856(17)