Halogen atom substitution effect on the carbazole fluorescence properties and supramolecular interactions in the solid-state
Ravi, Sasikala; Karthikeyan, Subramanian; Pannipara, Mehboobali; Al-Sehemi, Abdullah G.; Moon, Dohyun; Anthony, Savarimuthu Philip; CrystEngComm 26 (2024) 1773–1778; doi:10.1039/D4CE00053F

data_7248198
_publ_section_title
;
 Halogen atom substitution effect on the carbazole fluorescence properties
 and supramolecular interactions in the solid-state
;
_journal_issue                   12
_journal_name_full               CrystEngComm
_journal_page_first              1773
_journal_page_last               1778
_journal_paper_doi               10.1039/D4CE00053F
_journal_volume                  26
_journal_year                    2024
_chemical_formula_moiety         'C12 H7 Br2 N'
_chemical_formula_sum            'C12 H7 Br2 N'
_chemical_formula_weight         325.01
_chemical_name_systematic        3,6-dibromo-9H-carbazole
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2024-01-08 deposited with the CCDC.	2024-02-20 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.80(3)
_cell_angle_gamma                90
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_cell_measurement_temperature    220(2)
_cell_measurement_theta_max      33.679
_cell_measurement_theta_min      0.350
_cell_volume                     2099.5(7)
_computing_cell_refinement       '<i>HKL3000sm</i>(Otwinowski & Minor, 1997)'
_computing_data_collection
'<i>PAL BL2D-SMDC Program</i>(Shin et.al, 2016)'
_computing_data_reduction        '<i>HKL3000sm</i>(Otwinowski & Minor, 1997)'
_computing_molecular_graphics    '<i>DIAMOND 4</i>(Putx&Brandenburg, 2014)'
_computing_publication_material  '<i>publCIF</i>(Westrip, 2010)'
_computing_structure_refinement  '<i>SHELXL-2018</i>(Sheldrick, 2018)'
_computing_structure_solution    '<i>SHELXT-2018</i>(Sheldrick, 2018)'
_diffrn_ambient_temperature      220(2)
_diffrn_measured_fraction_theta_full 0.954
_diffrn_measured_fraction_theta_max 0.947
_diffrn_measurement_device_type  'Rayonix MX225HS CCD area detector'
_diffrn_measurement_method       'omega scan'
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.610
_diffrn_reflns_av_R_equivalents  0.0442
_diffrn_reflns_av_unetI/netI     0.0332
_diffrn_reflns_Laue_measured_fraction_full 0.954
_diffrn_reflns_Laue_measured_fraction_max 0.947
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            20920
_diffrn_reflns_point_group_measured_fraction_full 0.954
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_diffrn_reflns_theta_full        21.469
_diffrn_reflns_theta_max         24.999
_diffrn_reflns_theta_min         1.381
_diffrn_source                   'PLSII 2D bending magnet'
_exptl_absorpt_coefficient_mu    5.145
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_exptl_absorpt_correction_T_min  0.908
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
'<i>HKL3000sm Scalepack</i>(Otwinowski et.al,2003)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.056
_exptl_crystal_description       block
_exptl_crystal_F_000             1248
_exptl_crystal_size_max          0.075
_exptl_crystal_size_mid          0.069
_exptl_crystal_size_min          0.049
_refine_diff_density_max         2.918
_refine_diff_density_min         -0.954
_refine_diff_density_rms         0.241
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     271
_refine_ls_number_reflns         5545
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.077
_refine_ls_R_factor_all          0.0658
_refine_ls_R_factor_gt           0.0618
_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^)+(0.1167P)^2^+5.0958P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1719
_refine_ls_wR_factor_ref         0.1752
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4958
_reflns_number_total             5545
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4ce00053f2.cif
_cod_data_source_block           SPA721
_cod_depositor_comments
'Adding full bibliography for 7248196--7248198.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7248198
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.699
_shelx_estimated_absorpt_t_max   0.787
_shelx_res_checksum              79159