Effects of intramolecular hydrogen bonding on the conformation and luminescence properties of dibenzoylpyridine-based thermally activated delayed fluorescence materials
Pandidurai, Jayabalan; Jayakumar, Jayachandran; Senthilkumar, Natarajan; Cheng, Chien-Hong; Journal of Materials Chemistry C 7 (2019) 13104–; doi:10.1039/C9TC04536H

data_7238006
_publ_section_title
;
 Effects of intramolecular hydrogen bonding on the conformation and
 luminescence properties of dibenzoylpyridine-based thermally activated
 delayed fluorescence materials
;
_journal_issue                   42
_journal_name_full               'Journal of Materials Chemistry C'
_journal_page_first              13104
_journal_paper_doi               10.1039/C9TC04536H
_journal_volume                  7
_journal_year                    2019
_chemical_formula_sum            'C49 H39 N3 O2'
_chemical_formula_weight         701.83
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/6
_audit_update_record
;
2019-03-31 deposited with the CCDC.	2019-09-30 downloaded from the CCDC.
;
_cell_angle_alpha                77.029(2)
_cell_angle_beta                 80.766(2)
_cell_angle_gamma                74.062(2)
_cell_formula_units_Z            4
_cell_length_a                   10.3324(4)
_cell_length_b                   14.3340(5)
_cell_length_c                   26.1832(10)
_cell_measurement_reflns_used    9916
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.3285
_cell_measurement_theta_min      2.2897
_cell_volume                     3613.4(2)
_computing_cell_refinement       'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0366
_diffrn_reflns_av_unetI/netI     0.0467
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            57089
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.992
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.365
_diffrn_reflns_theta_min         0.802
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_T_max  0.9485
_exptl_absorpt_correction_T_min  0.9015
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2014/4 (Bruker AXS Inc.)'
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.290
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Lump
_exptl_crystal_F_000             1480
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.250
_refine_diff_density_min         -0.234
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     981
_refine_ls_number_reflns         14633
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0772
_refine_ls_R_factor_gt           0.0493
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0418P)^2^+1.5025P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1009
_refine_ls_wR_factor_ref         0.1181
_reflns_Friedel_coverage         0.000
_reflns_number_gt                10668
_reflns_number_total             14633
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9tc04536h2.cif
_cod_data_source_block           180220LT_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_crystal_density_meas' value 'not measured' was
changed to '?' -- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_database_code               7238006
_shelxl_version_number           2014/6
_shelx_res_checksum              56721