[5]Helicene-Based Chiral Triarylboranes with Large Luminescence Dissymmetry Factor Over 10-2 Level: Synthesis and Design Strategy via Isomeric Tuning of Steric Substitutions
Zhao, Fei; Zhao, Jingyi; Wang, Yu; Liu, Hou-Ting; Shang, Qinghai; Wang, Nan; Yin, Xiaodong; Zheng, Xiaoyan; Chen, Pangkuan; Dalton Transactions  (2022) –; doi:10.1039/D2DT00677D

data_7709841
_publ_section_title
;
 [5]Helicene-Based Chiral Triarylboranes with Large Luminescence
 Dissymmetry Factor Over 10-2 Level: Synthesis and Design Strategy via
 Isomeric Tuning of Steric Substitutions
;
_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/D2DT00677D
_journal_year                    2022
_chemical_formula_sum            'C61 H46 Cl2 N2'
_chemical_formula_weight         877.90
_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_block_doi                 10.5517/ccdc.csd.cc28lmm4
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2022-03-14 deposited with the CCDC.	2022-03-23 downloaded from the CCDC.
;
_cell_angle_alpha                75.74(3)
_cell_angle_beta                 82.53(3)
_cell_angle_gamma                69.79(3)
_cell_formula_units_Z            2
_cell_length_a                   10.783(2)
_cell_length_b                   11.142(2)
_cell_length_c                   20.298(4)
_cell_measurement_reflns_used    7795
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      25.018
_cell_measurement_theta_min      2.220
_cell_volume                     2215.3(9)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT, SADABS and XPREP'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXL-2018/3 (Sheldrick, 2018)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0386
_diffrn_reflns_av_unetI/netI     0.0475
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            22784
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.018
_diffrn_reflns_theta_max         25.018
_diffrn_reflns_theta_min         2.220
_diffrn_source                   MoK\a
_exptl_absorpt_coefficient_mu    0.192
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.7027
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.316
_exptl_crystal_description       block
_exptl_crystal_F_000             920
_exptl_crystal_size_max          0.120
_exptl_crystal_size_mid          0.120
_exptl_crystal_size_min          0.110
_refine_diff_density_max         0.915
_refine_diff_density_min         -0.862
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     588
_refine_ls_number_reflns         7795
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0903
_refine_ls_R_factor_gt           0.0610
_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^)+(0.0908P)^2^+2.6139P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1608
_refine_ls_wR_factor_ref         0.1834
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5579
_reflns_number_total             7795
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2dt00677d2.cif
_cod_data_source_block           1
_cod_original_cell_volume        2215.4(9)
_cod_database_code               7709841
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.977
_shelx_estimated_absorpt_t_max   0.979
_shelx_res_checksum              47163
_shelx_hkl_checksum              81296