Aggregation-Induced Emission in the Crystals of 9,10-Distyrylanthracene Derivatives: The Essential Role of Restricted Intramolecular Torsion
He, Jiating; Xu, Bin; Chen, Feipeng; Xia, Haijian; Li, Kunpeng; Ye, Ling; Tian, Wenjing; The Journal of Physical Chemistry C 113 (2009) 9892–; doi:10.1021/jp900205k

data_1516422
_publ_section_title
;
 Aggregation-Induced Emission in the Crystals of 9,10-Distyrylanthracene
 Derivatives: The Essential Role of Restricted Intramolecular Torsion
;
_journal_issue                   22
_journal_name_full               'The Journal of Physical Chemistry C'
_journal_page_first              9892
_journal_paper_doi               10.1021/jp900205k
_journal_volume                  113
_journal_year                    2009
_chemical_formula_sum            'C38 H38 O2'
_chemical_formula_weight         526.68
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 97.04(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            1
_cell_length_a                   9.2404(18)
_cell_length_b                   8.6917(17)
_cell_length_c                   18.711(4)
_cell_measurement_temperature    293(2)
_cell_volume                     1491.4(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.0436
_diffrn_reflns_av_sigmaI/netI    0.0828
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            14139
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.21
_exptl_absorpt_coefficient_mu    0.035
_exptl_crystal_density_diffrn    0.586
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             282
_refine_diff_density_max         0.501
_refine_diff_density_min         -0.565
_refine_diff_density_rms         0.057
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.108
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         3407
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.108
_refine_ls_R_factor_all          0.1293
_refine_ls_R_factor_gt           0.0882
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1883P)^2^+0.0896P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2810
_refine_ls_wR_factor_ref         0.3171
_reflns_number_gt                1919
_reflns_number_total             3407
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jp900205k_si_003.cif
_cod_data_source_block           hjt1-1
_cod_database_code               1516422