Fluorinated Boronic Acid-Appended Pyridinium Salts and <sup>19</sup>F NMR Spectroscopy for Diol Sensing.
Axthelm, Jörg; Askes, Sven H. C.; Elstner, Martin; G, Upendar Reddy; Görls, Helmar; Bellstedt, Peter; Schiller, Alexander; Journal of the American Chemical Society 139 (2017) 11413–11420; doi:10.1021/jacs.7b01167

data_4131236
_publ_section_title
;
 Fluorinated Boronic Acid-Appended Pyridinium Salts and <sup>19</sup>F NMR
 Spectroscopy for Diol Sensing.
;
_journal_issue                   33
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11413
_journal_page_last               11420
_journal_paper_doi               10.1021/jacs.7b01167
_journal_volume                  139
_journal_year                    2017
_chemical_formula_moiety         'C12 H12 B F N O2, Br'
_chemical_formula_sum            'C12 H12 B Br F N O2'
_chemical_formula_weight         311.95
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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
_cell_angle_beta                 103.537(1)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.5296(1)
_cell_length_b                   17.7540(4)
_cell_length_c                   9.5971(2)
_cell_measurement_reflns_used    7585
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      27.44
_cell_measurement_theta_min      2.29
_cell_volume                     1247.30(4)
_computing_cell_refinement       DENZO
_computing_data_collection       COLLECT
_computing_data_reduction        DENZO
_computing_molecular_graphics    SHELXTL/PC
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      133(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'phi- + omega-scan'
_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  0.0259
_diffrn_reflns_av_sigmaI/netI    0.0283
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            7585
_diffrn_reflns_theta_full        27.44
_diffrn_reflns_theta_max         27.44
_diffrn_reflns_theta_min         2.29
_exptl_absorpt_coefficient_mu    3.299
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6954
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker-AXS, 2002'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.661
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             624
_exptl_crystal_size_max          0.068
_exptl_crystal_size_mid          0.062
_exptl_crystal_size_min          0.052
_refine_diff_density_max         0.374
_refine_diff_density_min         -0.331
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.087
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     211
_refine_ls_number_reflns         2843
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.087
_refine_ls_R_factor_all          0.0310
_refine_ls_R_factor_gt           0.0246
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+1.4279P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0486
_refine_ls_wR_factor_ref         0.0514
_reflns_number_gt                2507
_reflns_number_total             2843
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja7b01167_si_002.cif
_cod_data_source_block           FO4914
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4131236