Achieving Highly Efficient Aggregation-Induced Emission, Reversible and Irreversible Photochromism by Heavy Halogen-Regulated Photophysics and D-A Molecular Pattern-Controlled Photochemistry of Through-Space Conjugated Lumingens
Xiong, Zuping; Zhang, Xiaoxiao; Liu, Longxiang; Zhu, Qiaozhi; Wang, Zhenni; Feng, Hui; Qian, Zhaosheng; Chemical Science  (2021) –; doi:10.1039/D1SC02168K

data_1563955
_publ_section_title
;
 Achieving Highly Efficient Aggregation-Induced Emission, Reversible and
 Irreversible Photochromism by Heavy Halogen-Regulated Photophysics and
 D-A Molecular Pattern-Controlled Photochemistry of Through-Space
 Conjugated Lumingens
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/D1SC02168K
_journal_year                    2021
_chemical_formula_moiety         'C25 H24 Br N3'
_chemical_formula_sum            'C25 H24 Br N3'
_chemical_formula_weight         446.38
_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
_atom_sites_solution_primary     dual
_audit_creation_date             2020-01-14
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2021-01-06 deposited with the CCDC.	2021-07-05 downloaded from the CCDC.
;
_cell_angle_alpha                102.009(3)
_cell_angle_beta                 94.363(3)
_cell_angle_gamma                114.749(2)
_cell_formula_units_Z            2
_cell_length_a                   9.8541(6)
_cell_length_b                   10.6234(6)
_cell_length_c                   11.7377(7)
_cell_measurement_reflns_used    7837
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      26.43
_cell_measurement_theta_min      2.19
_cell_volume                     1072.89(11)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      150.48
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0357
_diffrn_reflns_av_unetI/netI     0.0313
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            19279
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.484
_diffrn_reflns_theta_min         2.189
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.931
_exptl_absorpt_correction_T_max  0.0276
_exptl_absorpt_correction_T_min  0.0097
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0778 before and 0.0503 after correction.
The Ratio of minimum to maximum transmission is 0.3514.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.382
_exptl_crystal_description       block
_exptl_crystal_F_000             460
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.338
_refine_diff_density_min         -0.394
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     266
_refine_ls_number_reflns         4427
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0438
_refine_ls_R_factor_gt           0.0322
_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^)+(0.0421P)^2^+0.3902P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0784
_refine_ls_wR_factor_ref         0.0842
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3674
_reflns_number_total             4427
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1sc02168k2.cif
_cod_data_source_block           mo_0114_1_0m
_cod_database_code               1563955
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.830
_shelx_estimated_absorpt_t_min   0.699
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C009(H009), C00A(H00A), C00B(H00B), C00C(H00C), C00D(H00D), C00G(H00G),
 C00I(H00I), C00L(H00L), C00M(H00M), C00N(H00N), C00O(H00O), C00P(H00P)
2.b Idealised Me refined as rotating group:
 C00Q(H00E,H00F,H00H), C00R(H00J,H00K,H00Q), C00S(H00R,H00S,H00T), C00T(H00U,
 H00V,H00W)
;
_olex2_submission_special_instructions 'No special instructions were received'