A Deep Blue B,N-Doped Heptacene Emitter That Shows Both Thermally Activated Delayed Fluorescence and Delayed Fluores-cence by Triplet Triplet Annihilation.
Suresh, Subeesh Madayanad; Duda, Eimantas; Hall, David; Yao, Zhen; Bagnich, Sergey; Slawin, Alexandra M. Z.; Bässler, Heinz; Beljonne, David; Buck, Manfred; Olivier, Yoann; Köhler, Anna; Zysman-Colman, Eli; Journal of the American Chemical Society  (2020) –; doi:10.1021/jacs.9b13704

data_4134446
_publ_section_title
;
 A Deep Blue B,N-Doped Heptacene Emitter That Shows Both Thermally
 Activated Delayed Fluorescence and Delayed Fluores-cence by Triplet
 Triplet Annihilation.
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.9b13704
_journal_year                    2020
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C55 H56 B3 N3 O5'
_chemical_formula_sum            'C55 H56 B3 N3 O5'
_chemical_formula_weight         871.49
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2018-12-20
_audit_creation_method           'by CrystalStructure 4.3'
_cell_angle_alpha                90.0000
_cell_angle_beta                 90.0000
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   9.74368(15)
_cell_length_b                   18.5497(3)
_cell_length_c                   26.3997(5)
_cell_measurement_reflns_used    18743
_cell_measurement_temperature    173
_cell_measurement_theta_max      67.82
_cell_measurement_theta_min      2.89
_cell_volume                     4771.54(14)
_computing_cell_refinement       'CrysAlisPro 1.171.40.14a (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.40.14a (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.40.14a (Rigaku OD, 2018)'
_computing_molecular_graphics    'CrystalStructure 4.3'
_computing_publication_material  'CrystalStructure 4.3 (Rigaku, 2018)'
_computing_structure_refinement  'SHELXL Version 2018/3 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXT Version 2018/2 (Sheldrick, 2014)'
_diffrn_ambient_temperature      173
_diffrn_detector_area_resol_mean 5.811
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Rigaku XtaLAB P100'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0537
_diffrn_reflns_av_unetI/netI     0.0370
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            51012
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         68.226
_diffrn_reflns_theta_min         2.911
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.600
_exptl_absorpt_correction_T_max  0.994
_exptl_absorpt_correction_T_min  0.569
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.40.14a (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.213
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1848.00
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.030
_exptl_crystal_size_min          0.010
_refine_diff_density_max         0.14
_refine_diff_density_min         -0.17
_refine_ls_abs_structure_details
;
 Flack x determined using 3101 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.13(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    mixed
_refine_ls_number_parameters     612
_refine_ls_number_reflns         8665
_refine_ls_number_restraints     3
_refine_ls_R_factor_all          0.0455
_refine_ls_R_factor_gt           0.0391
_refine_ls_shift/su_max          0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0638P)^2^+0.3827P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1019
_refine_ls_wR_factor_ref         0.1060
_reflns_Friedel_coverage         0.781
_reflns_Friedel_fraction_full    0.992
_reflns_Friedel_fraction_max     0.984
_reflns_number_gt                7681
_reflns_number_total             8665
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            ja9b13704_si_002.cif
_cod_data_source_block           3BNOH
_cod_database_code               4134446
_shelx_res_checksum              81186
_shelx_hkl_checksum              77275