A Study of Boratriazaroles: An Underdeveloped Class of Heterocycles.
Liew, Sean K.; Holownia, Aleksandra; Tilley, Andrew J.; Carrera, Elisa I.; Seferos, Dwight S.; Yudin, Andrei K.; The Journal of organic chemistry 81 (2016) 10444–10453; doi:10.1021/acs.joc.6b01565

data_4037124
_publ_section_title
;
 A Study of Boratriazaroles: An Underdeveloped Class of Heterocycles.
;
_journal_issue                   21
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              10444
_journal_page_last               10453
_journal_paper_doi               10.1021/acs.joc.6b01565
_journal_volume                  81
_journal_year                    2016
_chemical_formula_moiety         '2(C19 H14 B N5), C12 H12 N4'
_chemical_formula_sum            'C50 H40 B2 N14'
_chemical_formula_weight         858.58
_space_group_crystal_system      monoclinic
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_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 99.182(1)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.7748(2)
_cell_length_b                   19.5968(4)
_cell_length_c                   22.9745(5)
_cell_measurement_reflns_used    9807
_cell_measurement_temperature    147(2)
_cell_measurement_theta_max      66.32
_cell_measurement_theta_min      3.90
_cell_volume                     4344.48(16)
_computing_cell_refinement       APEX2
_computing_data_collection       'APEX2 (Bruker, 2014)'
_computing_data_reduction        'SAINT (Bruker, 2014)'
_computing_molecular_graphics    'PLATON (Spek, 2009)'
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_computing_structure_solution    'SHELXT (Sheldrick, 2015a)'
_diffrn_ambient_temperature      147(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'Bruker Kappa APEX-DUO CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0485
_diffrn_reflns_av_unetI/netI     0.0218
_diffrn_reflns_Laue_measured_fraction_full 0.983
_diffrn_reflns_Laue_measured_fraction_max 0.983
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            90651
_diffrn_reflns_point_group_measured_fraction_full 0.983
_diffrn_reflns_point_group_measured_fraction_max 0.983
_diffrn_reflns_theta_full        67.392
_diffrn_reflns_theta_max         67.392
_diffrn_reflns_theta_min         2.980
_diffrn_source                   'Bruker ImuS with multi-layer optics'
_exptl_absorpt_coefficient_mu    0.647
_exptl_absorpt_correction_T_max  0.7529
_exptl_absorpt_correction_T_min  0.6810
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2014)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.313
_exptl_crystal_description       needle
_exptl_crystal_F_000             1792
_exptl_crystal_size_max          0.180
_exptl_crystal_size_mid          0.050
_exptl_crystal_size_min          0.050
_refine_diff_density_max         0.356
_refine_diff_density_min         -0.195
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     615
_refine_ls_number_reflns         7698
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0485
_refine_ls_R_factor_gt           0.0407
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0400P)^2^+2.2088P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0990
_refine_ls_wR_factor_ref         0.1039
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_reflns_number_gt                6687
_reflns_number_total             7698
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo6b01565_si_003.cif
_cod_data_source_block           d1658
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4037124
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.892
_shelx_estimated_absorpt_t_max   0.968
_shelx_res_checksum              92349
_shelx_hkl_checksum              30138