Reversible mechanochromism and enhanced AIE in tetraphenylethene substituted phenanthroimidazoles
Rajneesh Misra; Thaksen Jadhav; Bhausaheb Dhokale; Shaikh M. Mobin; Chem.Commun. 50 (2014) 9076–; doi:10.1039/C4cc02824D

data_7115431
_publ_section_title
;
 Reversible mechanochromism and enhanced AIE in tetraphenylethene
 substituted phenanthroimidazoles
;
_journal_name_full               Chem.Commun.
_journal_page_first              9076
_journal_paper_doi               10.1039/C4cc02824D
_journal_volume                  50
_journal_year                    2014
_chemical_formula_sum            'C54 H35 N3'
_chemical_formula_weight         725.85
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 94.875(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.0367(4)
_cell_length_b                   11.5650(8)
_cell_length_c                   38.221(2)
_cell_measurement_reflns_used    3158
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      21.9120
_cell_measurement_theta_min      3.1290
_cell_volume                     3980.0(4)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd.,'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_molecular_graphics    Ortep3
_computing_publication_material  Shelx97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 15.9948
_diffrn_measurement_device_type  'OXFORD DIFFRACTION SUPER NOVA'
_diffrn_measurement_method       \w/q-scan
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Micro-Focus (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1083
_diffrn_reflns_av_sigmaI/netI    0.0950
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       44
_diffrn_reflns_limit_l_min       -45
_diffrn_reflns_number            32887
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.95
_exptl_absorpt_coefficient_mu    0.071
_exptl_absorpt_correction_T_max  0.9909
_exptl_absorpt_correction_T_min  0.9853
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.31.7 (release 18-10-2006 CrysAlis171 .NET)
(compiled Oct 18 2006,16:28:17)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.211
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1520
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.13
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.005
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     514
_refine_ls_number_reflns         7009
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.005
_refine_ls_R_factor_all          0.1526
_refine_ls_R_factor_gt           0.0652
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0602P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1371
_refine_ls_wR_factor_ref         0.1803
_reflns_number_gt                3326
_reflns_number_total             7009
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4cc02824d2.cif
_cod_data_source_block           rm121a
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7115431