Two proton-conductive hybrids based on 2,2′-biimidazole molecules and Keggin-type heteropolyacids
Wei, Mei-Lin; Wang, Jun-Hua; Wang, Yu-Xia; Journal of Solid State Chemistry 198 (2013) 323–329; doi:10.1016/j.jssc.2012.10.025

data_1562761
_publ_section_title
;
 Two proton-conductive hybrids based on 2,2&#x2032;-biimidazole molecules
 and Keggin-type heteropolyacids
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              323
_journal_page_last               329
_journal_paper_doi               10.1016/j.jssc.2012.10.025
_journal_volume                  198
_journal_year                    2013
_chemical_formula_sum            'C38 H66 N22 O87 P2 W24'
_chemical_formula_weight         6697.47
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                82.352(9)
_cell_angle_beta                 86.905(9)
_cell_angle_gamma                62.164(9)
_cell_formula_units_Z            1
_cell_length_a                   12.173(7)
_cell_length_b                   12.334(6)
_cell_length_c                   20.100(10)
_cell_measurement_reflns_used    891
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.10
_cell_measurement_theta_min      2.30
_cell_volume                     2645(2)
_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  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_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  0.0372
_diffrn_reflns_av_sigmaI/netI    0.0759
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            13603
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    26.127
_exptl_absorpt_correction_T_max  0.022
_exptl_absorpt_correction_T_min  0.005
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    4.205
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2950
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.16
_refine_diff_density_max         2.364
_refine_diff_density_min         -1.903
_refine_diff_density_rms         0.360
_refine_ls_extinction_coef       0.000380(13)
_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   0.963
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     785
_refine_ls_number_reflns         9239
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      0.963
_refine_ls_R_factor_all          0.0546
_refine_ls_R_factor_gt           0.0403
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0386P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0969
_refine_ls_wR_factor_ref         0.1032
_reflns_number_gt                7366
_reflns_number_total             9239
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            JSSC-2013-198-323.cif
_cod_data_source_block           w
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Triclinic' was changed to
'triclinic' in accordance with the built-in table derived from the
CIF Core dictionary named 'cif_core.dic' version 2.4.5 last updated
on 2014-11-21.

Automatic conversion script
Id: cif_fix_values 8369 2020-08-20 11:38:08Z andrius 
;
_cod_original_sg_symbol_H-M      'P-1   '
_cod_database_code               1562761