#------------------------------------------------------------------------------
#$Date: 2016-02-20 02:53:41 +0200 (Sat, 20 Feb 2016) $
#$Revision: 176768 $
#$URL: svn://www.crystallography.net/cod/cif/2/10/44/2104427.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_2104427
loop_
_publ_author_name
'Kasunič, Marta'
'Meden, Anton'
'Škapin, Srečo D.'
'Suvorov, Danilo'
'Golobič, Amalija'
_publ_section_title
;
 Order--disorder of oxygen anions and vacancies in solid solutions of
 La₂TiO₅ and La₄Ga₂O₉
;
_journal_coeditor_code           KD5032
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              558
_journal_page_last               566
_journal_paper_doi               10.1107/S010876810902833X
_journal_volume                  65
_journal_year                    2009
_chemical_formula_moiety         'Ga0.2 La2 O4.9 Ti0.8'
_chemical_formula_sum            'Ga0.2 La2 O4.9 Ti0.8'
_chemical_formula_weight         408.47
_chemical_name_systematic        ' ?'
_space_group_IT_number           62
_space_group_name_Hall           '-P 2c 2n'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2c 2n'
_symmetry_space_group_name_H-M   'P n a m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.04452(11)
_cell_length_b                   11.28420(11)
_cell_length_c                   3.96519(4)
_cell_measurement_temperature    293.0(10)
_cell_volume                     494.176(9)
_computing_structure_refinement  'Topas Academic v4.1 (Coelho, 2004)'
_diffrn_ambient_temperature      293.0(10)
_diffrn_measurement_device_type  'Bruker AXS D4 Endeavor'
_diffrn_radiation_monochromator  'graphite, secondary'
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.5418
_exptl_crystal_density_diffrn    5.490
_pd_char_colour                  'pale yellow'
_pd_char_particle_morphology     irregular
_pd_instr_location               ' ?'
_pd_meas_2theta_range_inc        0.020
_pd_meas_2theta_range_max        140
_pd_meas_2theta_range_min        10
_pd_meas_number_of_points        6501
_pd_meas_scan_method             step
_pd_prep_temperature             1573.0(10)
_pd_proc_2theta_range_inc        0.020
_pd_proc_2theta_range_max        140
_pd_proc_2theta_range_min        10
_pd_proc_info_excluded_regions   none
_pd_proc_ls_background_function  'Chebychev polynomial, order 3'
_pd_proc_ls_pref_orient_corr     none
_pd_proc_ls_profile_function     'TOPAS Fundamental parameters approach'
_pd_proc_ls_prof_R_factor        0.09296
_pd_proc_ls_prof_wR_expected     0.07090
_pd_proc_ls_prof_wR_factor       0.12187
_pd_proc_wavelength              1.5418
_pd_spec_mounting                ' flat plate'
_pd_spec_mount_mode              reflection
_pd_spec_shape                   irregular
_refine_ls_goodness_of_fit_all   1.719
_refine_ls_number_parameters     33
_refine_ls_shift/su_max          0.001
_cod_data_source_file            kd5032.cif
_cod_data_source_block           2
_cod_database_code               2104427
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x+1/2, y+1/2, -z'
'x+1/2, -y+1/2, -z+1/2'
'-x, -y, z+1/2'
'-x, -y, -z'
'x+1/2, -y+1/2, z'
'-x+1/2, y+1/2, z+1/2'
'x, 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_occupancy
La La1 0.13342(13) 0.06567(13) 0.25 1
La La2 0.40586(13) 0.21221(13) 0.75 1
Ti Ti 0.1932(4) 0.3730(4) 0.25 0.8
Ga Ga 0.1932(4) 0.3730(4) 0.25 0.2
O O1 0.0128(12) 0.1018(13) 0.75 1
O O2 0.2731(12) 0.0230(12) 0.75 1
O O3 0.2369(12) 0.3761(14) 0.75 0.9
O O4 0.2828(12) 0.2303(12) 0.25 1
O O5 0.0331(11) 0.3339(12) 0.25 1
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
? ? ? ? ?
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_2
_geom_angle_site_symmetry_3
_geom_angle
_geom_angle_publ_flag
O1 La1 O2 . . . 74.3(3) no
O1 La1 O4 . . . 103.8(4) no
O1 La1 O1 . . 1_554 109.8(4) no
O1 La1 O2 . . 1_554 175.9(3) no
O1 La1 O3 . . 2_546 116.5(3) no
O1 La1 O1 . . 4_554 76.8(4) no
O2 La1 O4 . . . 75.0(3) no
O1 La1 O2 1_554 . . 175.9(3) no
O2 La1 O2 . . 1_554 101.6(3) no
O2 La1 O3 . . 2_546 60.5(3) no
O1 La1 O2 4_554 . . 104.4(4) no
O1 La1 O4 1_554 . . 103.8(4) no
O2 La1 O4 1_554 . . 75.0(3) no
O3 La1 O4 2_546 . . 104.6(4) no
O1 La1 O4 4_554 . . 178.9(4) no
O1 La1 O2 1_554 . 1_554 74.3(3) no
O1 La1 O3 1_554 . 2_546 116.5(3) no
O1 La1 O1 1_554 . 4_554 76.8(4) no
O2 La1 O3 1_554 . 2_546 60.5(3) no
O1 La1 O2 4_554 . 1_554 104.4(4) no
O1 La1 O3 4_554 . 2_546 74.3(5) no
O2 La2 O3 . . . 100.3(4) no
O2 La2 O4 . . . 75.6(4) no
O2 La2 O4 . . 1_556 75.6(4) no
O2 La2 O5 . . 3_555 98.5(4) no
O1 La2 O2 3_556 . . 174.9(4) no
O2 La2 O5 . . 3_556 98.5(4) no
O3 La2 O4 . . . 62.6(3) no
O3 La2 O4 . . 1_556 62.6(3) no
O3 La2 O5 . . 3_555 123.3(3) no
O1 La2 O3 3_556 . . 74.6(5) no
O3 La2 O5 . . 3_556 123.3(3) no
O4 La2 O4 . . 1_556 110.5(4) no
O4 La2 O5 . . 3_555 71.4(3) no
O1 La2 O4 3_556 . . 101.7(4) no
O4 La2 O5 . . 3_556 172.7(4) no
O4 La2 O5 1_556 . 3_555 172.7(4) no
O1 La2 O4 3_556 . 1_556 101.7(4) no
O4 La2 O5 1_556 . 3_556 71.4(3) no
O1 La2 O5 3_556 . 3_555 84.6(4) no
O5 La2 O5 3_555 . 3_556 105.8(3) no
O1 La2 O5 3_556 . 3_556 84.6(4) no
O4 Ga O5 . . . 107.6(6) no
O2 Ga O4 2_556 . . 136.0(6) no
O2 Ga O5 2_556 . . 116.4(6) no
O4 Ti O5 . . . 107.6(6) no
O2 Ti O4 2_556 . . 136.0(6) no
O2 Ti O5 2_556 . . 116.4(6) no
La1 O1 La1 . . 1_556 109.8(5) no
La1 O1 La2 . . 3_456 114.6(4) no
La1 O1 La1 . . 4_555 103.3(4) no
La1 O1 La2 1_556 . 3_456 114.6(4) no
La1 O1 La1 1_556 . 4_555 103.3(4) no
La1 O1 La2 4_555 . 3_456 110.1(5) no
La1 O2 La2 . . . 100.7(4) no
La1 O2 La1 . . 1_556 101.6(5) no
La1 O2 Ti . . 2_546 108.3(4) no
La1 O2 La2 1_556 . . 100.7(4) no
La2 O2 Ti . . 2_546 133.1(7) no
La1 O2 Ti 1_556 . 2_546 108.3(4) no
La1 O3 La2 2_556 . . 100.9(5) no
La1 O4 La2 . . . 108.1(4) no
La1 O4 Ti . . . 106.8(6) no
La1 O4 Ga . . . 106.8(6) no
La1 O4 La2 . . 1_554 108.1(4) no
La2 O4 Ti . . . 111.5(4) no
La2 O4 Ga . . . 111.5(4) no
La2 O4 La2 . . 1_554 110.5(5) no
La2 O4 Ti 1_554 . . 111.5(4) no
La2 O4 Ga 1_554 . . 111.5(4) no
La2 O5 Ti 3_455 . . 126.8(2) no
La2 O5 Ti 3_456 . . 126.8(2) no
La2 O5 Ga 3_455 . . 126.8(2) no
La2 O5 Ga 3_456 . . 126.8(2) no
La2 O5 La2 3_455 . 3_456 105.8(5) no
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_1
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
La1 O1 . . 2.423(8) no
La1 O2 . . 2.558(8) no
La1 O4 . . 2.485(14) no
La1 O1 . 1_554 2.423(8) no
La1 O2 . 1_554 2.558(8) no
La1 O3 . 2_546 2.574(15) no
La1 O1 . 4_554 2.486(14) no
La2 O2 . . 2.590(14) no
La2 O3 . . 2.627(15) no
La2 O4 . . 2.412(8) no
La2 O4 . 1_556 2.412(8) no
La2 O5 . 3_555 2.485(7) no
La2 O1 . 3_556 2.408(14) no
La2 O5 . 3_556 2.485(7) no
Ga O4 . . 1.890(14) no
Ga O5 . . 1.822(13) no
Ga O2 . 2_556 1.733(14) no
Ti O4 . . 1.890(14) no
Ti O5 . . 1.822(13) no
Ti O2 . 2_556 1.733(14) no
loop_
_geom_torsion_atom_site_label_1
_geom_torsion_atom_site_label_2
_geom_torsion_atom_site_label_3
_geom_torsion_atom_site_label_4
_geom_torsion_site_symmetry_1
_geom_torsion_site_symmetry_2
_geom_torsion_site_symmetry_3
_geom_torsion_site_symmetry_4
_geom_torsion
_geom_torsion_publ_flag
O1 La1 O2 La2 . . . . -103.6(5) no
O4 La1 O2 La2 . . . . 5.8(3) no
O1 La1 O4 La2 . . . . 62.7(5) no
O1 La1 O4 Ti . . . . -57.4(3) no
O2 La1 O4 La2 . . . . -6.5(4) no
O2 La1 O4 Ti . . . . -126.6(3) no
O3 La2 O2 La1 . . . . 52.1(3) no
O4 La2 O2 La1 . . . . -6.0(4) no
O2 La2 O4 La1 . . . . 6.4(4) no
O2 La2 O4 Ti . . . . 123.5(6) no
O3 La2 O4 La1 . . . . -103.5(5) no
O3 La2 O4 Ti . . . . 13.6(5) no
O5 Ti O4 La1 . . . . 0.00 no
O5 Ti O4 La2 . . . . -117.9(4) no
