Synthesis, Structure, and Catalytic Properties of Rare-Earth Ternary Sulfates
Josefina Perles; Carlos Fortes-Revilla; Enrique Gutiérrez-Puebla; Marta Iglesias; M. Ángeles Monge; Caridad Ruiz-Valero; Natalia Snejko; Chemistry of Materials 17 (2005) 2701–2706; doi:10.1021/cm049451z

data_4000499
_publ_section_title
;
 Synthesis, Structure, and Catalytic Properties of Rare-Earth Ternary
 Sulfates
;
_journal_issue                   10
_journal_name_full               'Chemistry of Materials'
_journal_page_first              2701
_journal_page_last               2706
_journal_paper_doi               10.1021/cm049451z
_journal_volume                  17
_journal_year                    2005
_chemical_formula_sum            'H2 La Na O9 S2'
_chemical_formula_weight         372.04
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           152
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'P 31 2"'
_symmetry_space_group_name_H-M   'P 31 2 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            3
_cell_length_a                   7.0538(5)
_cell_length_b                   7.0538(5)
_cell_length_c                   12.9625(14)
_cell_measurement_reflns_used    4245
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      31.13
_cell_measurement_theta_min      4.59
_cell_volume                     558.55(8)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.961
_diffrn_measured_fraction_theta_max 0.961
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0759
_diffrn_reflns_av_sigmaI/netI    0.0739
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            4198
_diffrn_reflns_theta_full        31.13
_diffrn_reflns_theta_max         31.13
_diffrn_reflns_theta_min         4.59
_exptl_absorpt_coefficient_mu    6.377
_exptl_absorpt_correction_T_max  0.5680
_exptl_absorpt_correction_T_min  0.1427
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    3.318
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       polyhedron
_exptl_crystal_F_000             522
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.742
_refine_diff_density_min         -0.995
_refine_diff_density_rms         0.213
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(4)
_refine_ls_extinction_coef       0.0002(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.961
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     66
_refine_ls_number_reflns         1136
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.961
_refine_ls_R_factor_all          0.0471
_refine_ls_R_factor_gt           0.0362
_refine_ls_shift/su_max          0.012
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0304P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0694
_refine_ls_wR_factor_ref         0.0722
_reflns_number_gt                972
_reflns_number_total             1136
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cm049451zsi20041006_054327.cif
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Trigonal' changed to 'trigonal' according
to '/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P3(1)21
_cod_database_code               4000499