Deep insight into reasons for the mechanoluminescence phenomenon of triphenylamine-substituted imidazoles and their distinct mechano-fluorochromic behaviours
Liu, Xiao-Jing; Gao, Guan-Lei; Jiang, Hao; Jia, Yan-Rong; Xia, Min; RSC Advances 10 (2020) 23187–23195; doi:10.1039/D0RA02737E

data_7240752
_publ_section_title
;
 Deep insight into reasons for the mechanoluminescence phenomenon of
 triphenylamine-substituted imidazoles and their distinct
 mechano-fluorochromic behaviours
;
_journal_issue                   39
_journal_name_full               'RSC Advances'
_journal_page_first              23187
_journal_page_last               23195
_journal_paper_doi               10.1039/D0RA02737E
_journal_volume                  10
_journal_year                    2020
_chemical_formula_moiety         'C32 H22 N4'
_chemical_formula_sum            'C32 H22 N4'
_chemical_formula_weight         462.53
_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
_atom_sites_solution_primary     dual
_audit_creation_date             2019-05-29
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-10-14 deposited with the CCDC.	2020-05-29 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 94.1860(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.2852(5)
_cell_length_b                   9.7783(3)
_cell_length_c                   18.6415(6)
_cell_measurement_reflns_used    9958
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      27.09
_cell_measurement_theta_min      2.59
_cell_volume                     2415.20(14)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_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      169.99
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.996
_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  0.0263
_diffrn_reflns_av_unetI/netI     0.0228
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            20884
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.108
_diffrn_reflns_theta_min         2.191
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.076
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.6769
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1192 before and 0.0406 after correction.
The Ratio of minimum to maximum transmission is 0.9080.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.272
_exptl_crystal_description       block
_exptl_crystal_F_000             968
_exptl_crystal_size_max          0.49
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.3
_refine_diff_density_max         0.217
_refine_diff_density_min         -0.193
_refine_diff_density_rms         0.034
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     325
_refine_ls_number_reflns         5301
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.0470
_refine_ls_R_factor_gt           0.0386
_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^)+(0.0420P)^2^+0.6855P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0934
_refine_ls_wR_factor_ref         0.0997
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4472
_reflns_number_total             5301
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0ra02737e2.cif
_cod_data_source_block           190529_xm190529_01_0m
_cod_depositor_comments
'Adding full bibliography for 7240750--7240752.cif.'
_cod_database_code               7240752
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.977
_shelx_estimated_absorpt_t_min   0.964
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C4(H4), C9(H9), C10(H10), C12(H12), C13(H13),
 C16(H16), C17(H17), C19(H19), C20(H20), C22(H22), C23(H23), C24(H24), C25(H25),
  C26(H26), C28(H28), C29(H29), C30(H30), C31(H31), C32(H32)
;
_shelx_res_checksum              49300
_olex2_submission_special_instructions 'No special instructions were received'