Ultrabright and narrowband organic afterglow achieved by molecular engineering of coronene.
Chen, Yuanyuan; Zhang, Yue; Wu, Guoyi; Luo, Ting; Jiang, Jialiang; Wang, Tengyue; Guo, Xiaoya; Zhang, Kaka; Chemical science 17 (2026) 4538–4547; doi:10.1039/d5sc08966b

data_1576808
_publ_section_title
;
 Ultrabright and narrowband organic afterglow achieved by molecular
 engineering of coronene.
;
_journal_issue                   9
_journal_name_full               'Chemical science'
_journal_page_first              4538
_journal_page_last               4547
_journal_paper_doi               10.1039/d5sc08966b
_journal_volume                  17
_journal_year                    2026
_chemical_formula_moiety         'C33 H20 O2'
_chemical_formula_sum            'C33 H20 O2'
_chemical_formula_weight         448.49
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2025-07-21
_audit_creation_method
;
Olex2 1.5
(compiled 2025.05.31 svn.r86d253d1 for OlexSys, GUI svn.r7254)
;
_audit_update_record
;
2025-10-14 deposited with the CCDC.	2026-01-09 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 112.025(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   15.4084(9)
_cell_length_b                   7.9638(5)
_cell_length_c                   18.8192(12)
_cell_measurement_reflns_used    9896
_cell_measurement_temperature    143
_cell_measurement_theta_max      27.59
_cell_measurement_theta_min      2.33
_cell_volume                     2140.8(2)
_computing_cell_refinement       'SAINT V8.40B (?, 2016)'
_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 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      143
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.971
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0511
_diffrn_reflns_av_unetI/netI     0.0452
_diffrn_reflns_Laue_measured_fraction_full 0.976
_diffrn_reflns_Laue_measured_fraction_max 0.971
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            19126
_diffrn_reflns_point_group_measured_fraction_full 0.976
_diffrn_reflns_point_group_measured_fraction_max 0.971
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.593
_diffrn_reflns_theta_min         2.155
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.085
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.5458
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1124 before and 0.0788 after correction.
The Ratio of minimum to maximum transmission is 0.7320.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.392
_exptl_crystal_description       block
_exptl_crystal_F_000             936
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.779
_refine_diff_density_min         -0.303
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     317
_refine_ls_number_reflns         4832
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0812
_refine_ls_R_factor_gt           0.0698
_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^)+(0.0670P)^2^+3.0587P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1686
_refine_ls_wR_factor_ref         0.1789
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4075
_reflns_number_total             4832
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5sc08966b2.cif
_cod_data_source_block           mo_d8v25343_0m
_cod_database_code               1576808
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.996
_shelx_estimated_absorpt_t_min   0.986
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C32(H32A,H32B)
2.b Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C4(H4), C5(H5), C7(H7), C8(H8), C10(H10), C11(H11), C13(H13),
 C14(H14), C16(H16), C27(H27), C28(H28), C29(H29), C30(H30)
2.c Idealised Me refined as rotating group:
 C33(H33A,H33B,H33C)
;
_shelx_res_checksum              79548
_olex2_submission_special_instructions 'No special instructions were received'