Full-color tunable mechanofluorochromism and excitation-dependent emissions of single-arm extended tetraphenylethylenes
Yi Wang; Ivan Zhang; Binhong Yu; Xiaofeng Fang; Xing Su; Yu-Mo Zhang; Ting Zhang; Bing Yang; Minjie Li; Sean Xiao-An Zhang; Journal of Materials Chemistry C 3 (2015) 12328–12334; doi:10.1039/C5TC02623G

data_7234517
_publ_section_title
;
 Full-color tunable mechanofluorochromism and excitation-dependent
 emissions of single-arm extended tetraphenylethylenes
;
_journal_name_full               'Journal of Materials Chemistry C'
_journal_page_first              12328
_journal_page_last               12334
_journal_paper_doi               10.1039/C5TC02623G
_journal_volume                  3
_journal_year                    2015
_chemical_formula_moiety         'C34 H25 N O2'
_chemical_formula_sum            'C34 H25 N O2'
_chemical_formula_weight         479.55
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 98.310(15)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.202(5)
_cell_length_b                   18.970(7)
_cell_length_c                   13.263(5)
_cell_measurement_reflns_used    19417
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      27.59
_cell_measurement_theta_min      3.11
_cell_volume                     2539.9(18)
_computing_cell_refinement       RAPID-AUTO
_computing_data_collection       'RAPID-AUTO (Rigaku Corporation, 1998)'
_computing_data_reduction
'CrystalStructure (Rigaku/MSC and Rigaku Corporation, 2002)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.969
_diffrn_measured_fraction_theta_max 0.969
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       '\w scans'
_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  0.0554
_diffrn_reflns_av_sigmaI/netI    0.0746
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            23987
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.10
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.9833
_exptl_absorpt_correction_T_min  0.9693
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.254
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1008
_exptl_crystal_size_max          0.41
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.747
_refine_diff_density_min         -0.317
_refine_diff_density_rms         0.046
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   2.0(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.018
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     667
_refine_ls_number_reflns         9887
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0840
_refine_ls_R_factor_gt           0.0539
_refine_ls_shift/su_max          0.010
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0694P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1241
_refine_ls_wR_factor_ref         0.1391
_reflns_number_gt                6667
_reflns_number_total             9887
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            J-Mater-Chem-C-2015-3-12328.cif
_cod_data_source_block           ivan
_cod_original_sg_symbol_Hall     '-P 2yb'
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               7234517