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_4131234
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 107.611(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.5193(2)
_cell_length_b                   18.3049(5)
_cell_length_c                   9.5705(3)
_cell_measurement_reflns_used    9496
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      27.45
_cell_measurement_theta_min      2.23
_cell_volume                     1255.55(6)
_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 0.995
_diffrn_measured_fraction_theta_max 0.995
_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  0.0223
_diffrn_reflns_av_sigmaI/netI    0.0193
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            9496
_diffrn_reflns_theta_full        27.45
_diffrn_reflns_theta_max         27.45
_diffrn_reflns_theta_min         2.23
_exptl_absorpt_coefficient_mu    3.278
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6435
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker-AXS. 2002'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.650
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             624
_exptl_crystal_size_max          0.038
_exptl_crystal_size_mid          0.034
_exptl_crystal_size_min          0.028
_refine_diff_density_max         0.383
_refine_diff_density_min         -0.267
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     211
_refine_ls_number_reflns         2860
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0235
_refine_ls_R_factor_gt           0.0202
_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^)+(0.0164P)^2^+1.1279P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0475
_refine_ls_wR_factor_ref         0.0498
_reflns_number_gt                2645
_reflns_number_total             2860
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja7b01167_si_002.cif
_cod_data_source_block           FO5537
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4131234