Switchable solid-state emission in GFP chromophore analogue cocrystals via competing AIE and ACQ pathways
Mali, Bhupendra P.; Dabke, Niteen B.; Sharma, Himanshu; Dash, Soumya Ranjan; Manoj, Kochunnoonny; Vanka, Kumar; Gonnade, Rajesh G.; CrystEngComm 28 (2026) 1775–1780; doi:10.1039/D6CE00041J

data_7251643
_publ_section_title
;
 Switchable solid-state emission in GFP chromophore analogue cocrystals
 via competing AIE and ACQ pathways
;
_journal_issue                   11
_journal_name_full               CrystEngComm
_journal_page_first              1775
_journal_page_last               1780
_journal_paper_doi               10.1039/D6CE00041J
_journal_volume                  28
_journal_year                    2026
_chemical_formula_moiety         'C23 H20 N2 O3, C10 H2 N4'
_chemical_formula_sum            'C33 H22 N6 O3'
_chemical_formula_weight         550.56
_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-2017/1
_audit_update_record
;
2025-09-20 deposited with the CCDC.	2026-02-19 downloaded from the CCDC.
;
_cell_angle_alpha                87.523(2)
_cell_angle_beta                 88.221(2)
_cell_angle_gamma                78.9690(10)
_cell_formula_units_Z            4
_cell_length_a                   7.8420(3)
_cell_length_b                   8.0067(3)
_cell_length_c                   44.0828(19)
_cell_measurement_reflns_used    9900
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.23
_cell_measurement_theta_min      2.65
_cell_volume                     2713.48(19)
_computing_cell_refinement       'SAINT (Bruker, 2016)'
_computing_data_collection       'APEX3 (Bruker, 2016)'
_computing_data_reduction        'SAINT (Bruker, 2016)'
_computing_molecular_graphics    'Bruker SHELXTL, Mercury 2020.20'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'Photon II CPAD Area Detector'
_diffrn_detector_area_resol_mean 7.39
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'Bruker D8 VENTURE Kappa Duo PHOTON II CPAD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'multilayer mirrors'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0571
_diffrn_reflns_av_unetI/netI     0.0353
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       55
_diffrn_reflns_limit_l_min       -55
_diffrn_reflns_number            76978
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.359
_diffrn_reflns_theta_min         2.313
_diffrn_source                   'micro-focus sealed tube'
_diffrn_source_type              'Incoatech I\mS HB'
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.7034
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS,(BRUKER,2006)
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.348
_exptl_crystal_description       plate
_exptl_crystal_F_000             1144
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: Methanol'
_exptl_crystal_size_max          0.100
_exptl_crystal_size_mid          0.090
_exptl_crystal_size_min          0.080
_refine_diff_density_max         0.350
_refine_diff_density_min         -0.351
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.105
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     761
_refine_ls_number_reflns         11065
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.105
_refine_ls_R_factor_all          0.0656
_refine_ls_R_factor_gt           0.0537
_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^)+(0.0386P)^2^+2.3589P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1187
_refine_ls_wR_factor_ref         0.1240
_reflns_Friedel_coverage         0.000
_reflns_number_gt                9307
_reflns_number_total             11065
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d6ce00041j2.cif
_cod_data_source_block           Cocrystal-II
_cod_depositor_comments
'Adding full bibliography for 7251642--7251644.cif.'
_cod_database_code               7251643
_shelx_shelxl_version_number     2017/1
_shelx_estimated_absorpt_t_min   0.991
_shelx_estimated_absorpt_t_max   0.993
_shelx_res_checksum              82365