Strong solid emission and mechanofluorochromism of carbazole-based terephthalate derivatives adjusted by alkyl chains
Pengchong Xue; Jiabao Sun; Peng Chen; Peng Gong; Boqi Yao; Zhenqi Zhang; Chong Qian; Ran Lu; Journal of Materials Chemistry C 3 (2015) 4086–4092; doi:10.1039/C5TC00267B

data_7234182
_publ_section_title
;
 Strong solid emission and mechanofluorochromism of carbazole-based
 terephthalate derivatives adjusted by alkyl chains
;
_journal_name_full               'Journal of Materials Chemistry C'
_journal_page_first              4086
_journal_page_last               4092
_journal_paper_doi               10.1039/C5TC00267B
_journal_volume                  3
_journal_year                    2015
_chemical_formula_sum            'C68 H92 N2 O4'
_chemical_formula_weight         1001.44
_space_group_IT_number           1
_space_group_name_Hall           'P 1'
_space_group_name_H-M_alt        'P 1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                81.69(3)
_cell_angle_beta                 85.17(3)
_cell_angle_gamma                82.15(3)
_cell_formula_units_Z            1
_cell_length_a                   8.2621(17)
_cell_length_b                   8.9309(18)
_cell_length_c                   21.084(4)
_cell_measurement_reflns_used    7590
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      54.90
_cell_measurement_theta_min      6.13
_cell_volume                     1521.7(5)
_computing_cell_refinement       'CrysAlis PRO (Agilent, 2011)'
_computing_data_collection       'CrysAlis PRO (Agilent, 2011)'
_computing_data_reduction        'CrysAlis PRO (Agilent, 2011)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.980
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0475
_diffrn_reflns_av_sigmaI/netI    0.0732
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            14465
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         3.07
_exptl_absorpt_coefficient_mu    0.066
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.093
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod-like
_exptl_crystal_F_000             546
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.262
_refine_diff_density_min         -0.164
_refine_diff_density_rms         0.041
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   2(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.964
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     671
_refine_ls_number_reflns         11016
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      0.964
_refine_ls_R_factor_all          0.1278
_refine_ls_R_factor_gt           0.0591
_refine_ls_shift/su_max          0.629
_refine_ls_shift/su_mean         0.102
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0873P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1381
_refine_ls_wR_factor_ref         0.1698
_reflns_number_gt                5706
_reflns_number_total             11016
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            J-Mater-Chem-C-2015-3-4086.cif
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      p1
_cod_database_code               7234182