Tetradentate carbene-anilido boron complexes: highly fluorescent dyes with larger Stokes shifts than BODIPY analogues.
He, Jiang; Wang, Songmeng; Song, Xiu-Fang; Chang, Xiaoyong; Zou, Chao; Lu, Wei; Li, Kai; Chemical communications (Cambridge, England) 60 (2024) 11524–11527; doi:10.1039/d4cc03944k

data_7133725
_publ_section_title
;
 Tetradentate carbene-anilido boron complexes: highly fluorescent dyes
 with larger Stokes shifts than BODIPY analogues.
;
_journal_issue                   81
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              11524
_journal_page_last               11527
_journal_paper_doi               10.1039/d4cc03944k
_journal_volume                  60
_journal_year                    2024
_chemical_formula_moiety         'C24 H28 B F2 N3'
_chemical_formula_sum            'C24 H28 B F2 N3'
_chemical_formula_weight         407.30
_space_group_crystal_system      tetragonal
_space_group_IT_number           114
_space_group_name_Hall           'P -4 2n'
_space_group_name_H-M_alt        'P -4 21 c'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2023-08-29
_audit_creation_method
;
Olex2 1.5
(compiled 2023.03.06 svn.rbb2c1857 for OlexSys, GUI svn.r6748)
;
_audit_update_record
;
2024-07-23 deposited with the CCDC.	2024-09-13 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            16
_cell_length_a                   18.6377(13)
_cell_length_b                   18.6377(13)
_cell_length_c                   27.574(3)
_cell_measurement_reflns_used    9736
_cell_measurement_temperature    298.0(2)
_cell_measurement_theta_max      55.71
_cell_measurement_theta_min      2.49
_cell_volume                     9578.2(14)
_computing_cell_refinement       'SAINT V8.40B (?, 2016)'
_computing_data_collection       'Apex3 (Bruker 2018)'
_computing_data_reduction        'SAINT V8.40B (?, 2016)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2019/2 (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT 2014'
_diffrn_ambient_temperature      298.0(2)
_diffrn_detector                 'Bruker PHOTON III area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CMOS area detector'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker D8 VENTURE'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           GaK\a
_diffrn_radiation_wavelength     1.34138
_diffrn_reflns_av_R_equivalents  0.0948
_diffrn_reflns_av_unetI/netI     0.0317
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            118624
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        53.594
_diffrn_reflns_theta_max         57.019
_diffrn_reflns_theta_min         2.489
_diffrn_source                   'microfocus Metaljet'
_diffrn_source_current           3.57
_diffrn_source_power             0.2494002
_diffrn_source_type              'Incoatec Metaljet'
_diffrn_source_voltage           69.86
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.397
_exptl_absorpt_correction_T_max  0.7501
_exptl_absorpt_correction_T_min  0.6946
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0997 before and 0.0697 after correction.
The Ratio of minimum to maximum transmission is 0.9260.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.130
_exptl_crystal_description       block
_exptl_crystal_F_000             3456
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.24
_refine_diff_density_max         0.123
_refine_diff_density_min         -0.130
_refine_diff_density_rms         0.031
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.58(16)
_refine_ls_extinction_coef       0.00041(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2019/2 (Sheldrick 2019)'
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     557
_refine_ls_number_reflns         9819
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0414
_refine_ls_R_factor_gt           0.0348
_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^)+(0.0625P)^2^+0.2513P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0938
_refine_ls_wR_factor_ref         0.0988
_reflns_Friedel_coverage         0.840
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.997
_reflns_number_gt                8607
_reflns_number_total             9819
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4cc03944k2.cif
_cod_data_source_block           cxy5372_0m
_cod_depositor_comments
'Adding full bibliography for 7133725--7133728.cif.'
_cod_original_cell_volume        9578.2(17)
_cod_database_code               7133725
_shelx_shelxl_version_number     2019/2
_shelx_estimated_absorpt_t_max   0.911
_shelx_estimated_absorpt_t_min   0.883
_olex2_refinement_description
;
1. Twinned data refinement
 Scales: 0.42(16)
 0.58(16)
2. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
3.a Aromatic/amide H refined with riding coordinates:
 C4(H4), C5(H5), C7(H7), C9(H9), C13(H13), C14(H14), C16(H16), C28(H28),
 C29(H29), C31(H31), C33(H33), C37(H37), C38(H38), C40(H40)
3.b Idealised Me refined as rotating group:
 C6(H6A,H6B,H6C), C18(H18A,H18B,H18C), C19(H19A,H19B,H19C), C20(H20A,H20B,
 H20C), C22(H22A,H22B,H22C), C23(H23A,H23B,H23C), C24(H24A,H24B,H24C), C30(H30A,
 H30B,H30C), C42(H42A,H42B,H42C), C43(H43A,H43B,H43C), C44(H44A,H44B,H44C),
 C46(H46A,H46B,H46C), C47(H47A,H47B,H47C), C48(H48A,H48B,H48C)
;
_smtbx_masks_void_probe_radius   1.2
_smtbx_masks_void_truncation_radius 1.2
_shelx_res_checksum              53109
_shelx_hkl_checksum              45212
_shelx_fab_checksum              225
_olex2_submission_special_instructions 'No special instructions were received'