A kinetically protected pyrene: molecular design, bright blue emission in the crystalline state and aromaticity relocation in its dicationic species
Akinobu Matsumoto; Mitsuharu Suzuki; Daiki Kuzuhara; Junpei Yuasa; Tsuyoshi Kawai; Naoki Aratani; Chem.Commun. 50 (2014) 10956–; doi:10.1039/C4cc03645J

data_7115619
_publ_section_title
;
 A kinetically protected pyrene: molecular design, bright blue emission in
 the crystalline state and aromaticity relocation in its dicationic
 species
;
_journal_name_full               Chem.Commun.
_journal_page_first              10956
_journal_paper_doi               10.1039/C4cc03645J
_journal_volume                  50
_journal_year                    2014
_chemical_formula_moiety         'C92 H74 O4, 4(C7 H8)'
_chemical_formula_sum            'C120 H106 O4'
_chemical_formula_weight         1612.05
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                72.271(3)
_cell_angle_beta                 84.227(3)
_cell_angle_gamma                63.603(3)
_cell_formula_units_Z            1
_cell_length_a                   12.656(2)
_cell_length_b                   12.875(2)
_cell_length_c                   16.048(3)
_cell_measurement_reflns_used    2429
_cell_measurement_temperature    90
_cell_measurement_theta_max      25.94
_cell_measurement_theta_min      2.28
_cell_volume                     2229.2(7)
_computing_cell_refinement       'APEX2 (Bruker AXS, 2006)'
_computing_data_collection       'APEX2 (Bruker AXS, 2006)'
_computing_data_reduction        'SAINT (Bruker AXS, 2004)'
_computing_molecular_graphics    'XSHEL (Bruker AXS,2002)'
_computing_publication_material  'XCIF (Bruker AXS, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      90
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Bruker APEXII CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0337
_diffrn_reflns_av_sigmaI/netI    0.0749
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            11554
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.80
_exptl_absorpt_coefficient_mu    0.071
_exptl_absorpt_correction_T_max  0.9965
_exptl_absorpt_correction_T_min  0.9791
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
SADABS Sheldrick 1996
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.201
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             858
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.522
_refine_diff_density_min         -0.429
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     538
_refine_ls_number_reflns         7713
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.1348
_refine_ls_R_factor_gt           0.0798
_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^)+(0.1300P)^2^+1.4859P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2054
_refine_ls_wR_factor_ref         0.2467
_reflns_number_gt                4593
_reflns_number_total             7713
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4cc03645j2.cif
_cod_data_source_block           31224am
_cod_original_cell_volume        2229.3(7)
_cod_database_code               7115619