Versatile Self-Adapting Boronic Acids for H-Bond Recognition: From Discrete to Polymeric Supramolecules.
Georgiou, Irene; Kervyn, Simon; Rossignon, Alexandre; De Leo, Federica; Wouters, Johan; Bruylants, Gilles; Bonifazi, Davide; Journal of the American Chemical Society 139 (2017) 2710–2727; doi:10.1021/jacs.6b11362

data_4125527
_publ_section_title
;
 Versatile Self-Adapting Boronic Acids for H-Bond Recognition: From
 Discrete to Polymeric Supramolecules.
;
_journal_issue                   7
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              2710
_journal_page_last               2727
_journal_paper_doi               10.1021/jacs.6b11362
_journal_volume                  139
_journal_year                    2017
_chemical_formula_moiety         'C14 H8 N4, C6 H8 B2 O4'
_chemical_formula_sum            'C20 H16 B2 N4 O4'
_chemical_formula_weight         397.99
_space_group_IT_number           13
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yc'
_symmetry_space_group_name_H-M   'P 1 2/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                90.00
_cell_angle_beta                 90.808(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.9934(5)
_cell_length_b                   15.8317(7)
_cell_length_c                   7.2226(4)
_cell_measurement_reflns_used    1161
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      66.7280
_cell_measurement_theta_min      2.7710
_cell_volume                     1028.26(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 5.1856
_diffrn_detector_type            Ruby
_diffrn_measured_fraction_theta_full 0.887
_diffrn_measured_fraction_theta_max 0.887
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Xcalibur, Ruby, Gemini ultra'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0628
_diffrn_reflns_av_sigmaI/netI    0.0453
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            3008
_diffrn_reflns_theta_full        66.59
_diffrn_reflns_theta_max         66.59
_diffrn_reflns_theta_min         2.79
_exptl_absorpt_coefficient_mu    0.739
_exptl_absorpt_correction_T_max  0.9556
_exptl_absorpt_correction_T_min  0.6655
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.34 (release 22-05-2014 CrysAlis171 .NET)
(compiled May 22 2014,16:03:01)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.285
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             412
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.586
_refine_diff_density_min         -0.573
_refine_diff_density_rms         0.153
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.140
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     139
_refine_ls_number_reflns         1624
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.140
_refine_ls_R_factor_all          0.1288
_refine_ls_R_factor_gt           0.1080
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2793
_refine_ls_wR_factor_ref         0.3144
_reflns_number_gt                1096
_reflns_number_total             1624
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja6b11362_si_023.cif
_cod_data_source_block           shelxl
_cod_depositor_comments
'Adding full bibliography for 4125513--4125529.cif.'
_cod_original_sg_symbol_H-M      'P 2/c'
_cod_database_code               4125527