Liquefaction-induced emission enhancement of tetraphenylethene derivatives.
Machida, Takashi; Taniguchi, Ryosuke; Oura, Tsuyoshi; Sada, Kazuki; Kokado, Kenta; Chemical communications (Cambridge, England) 53 (2017) 2378–2381; doi:10.1039/c6cc09939d

data_7119746
_publ_section_title
;
 Liquefaction-induced emission enhancement of tetraphenylethene
 derivatives.
;
_journal_issue                   15
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              2378
_journal_page_last               2381
_journal_paper_doi               10.1039/c6cc09939d
_journal_volume                  53
_journal_year                    2017
_chemical_formula_sum            'C34 H28 O8'
_chemical_formula_weight         564.56
_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
_audit_update_record
;
2016-12-14 deposited with the CCDC.
2017-02-06 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 102.144(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.4605(8)
_cell_length_b                   20.3913(13)
_cell_length_c                   14.1238(8)
_cell_measurement_temperature    93(2)
_cell_volume                     2945.2(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      93(2)
_diffrn_measured_fraction_theta_full 0.921
_diffrn_measured_fraction_theta_max 0.921
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0512
_diffrn_reflns_av_sigmaI/netI    0.0700
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            13829
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.12
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_T_max  0.9646
_exptl_absorpt_correction_T_min  0.9646
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.273
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1184
_exptl_crystal_preparation       ', Luminescent'
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: Chloroform, methanol'
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.40
_refine_diff_density_max         0.337
_refine_diff_density_min         -0.339
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.078
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     383
_refine_ls_number_reflns         6223
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.1279
_refine_ls_R_factor_gt           0.0626
_refine_ls_shift/su_max          0.024
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1151P)^2^+0.9032P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1630
_refine_ls_wR_factor_ref         0.2300
_reflns_number_gt                3453
_reflns_number_total             6223
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6cc09939d4.cif
_cod_data_source_block           a
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7119746
_cod_duplicate_entry 7119745