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_7115621
_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'
_chemical_formula_sum            'C92 H74 O4'
_chemical_formula_weight         1243.59
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.0000
_cell_angle_beta                 117.2734(7)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   42.2144(8)
_cell_length_b                   8.82075(16)
_cell_length_c                   23.4233(5)
_cell_measurement_reflns_used    38816
_cell_measurement_temperature    103
_cell_measurement_theta_max      27.51
_cell_measurement_theta_min      3.23
_cell_volume                     7752.3(3)
_computing_cell_refinement       'RAPID AUTO'
_computing_data_collection       'RAPID AUTO (Rigaku, ????)'
_computing_data_reduction        'RAPID AUTO'
_computing_molecular_graphics    'CrystalStructure 4.0'
_computing_publication_material  'CrystalStructure 4.0 (Rigaku, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'Il Milione (Burla, et al., 2007)'
_diffrn_ambient_temperature      103
_diffrn_detector_area_resol_mean 10.000
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0661
_diffrn_reflns_limit_h_max       54
_diffrn_reflns_limit_h_min       -54
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            65154
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.48
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.064
_exptl_absorpt_correction_T_max  0.997
_exptl_absorpt_correction_T_min  0.487
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Rigaku, 1995)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.065
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2632.00
_exptl_crystal_size_max          0.220
_exptl_crystal_size_mid          0.050
_exptl_crystal_size_min          0.050
_platon_squeeze_details
;
;
_refine_diff_density_max         0.370
_refine_diff_density_min         -0.320
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     439
_refine_ls_number_reflns         8886
_refine_ls_number_restraints     0
_refine_ls_R_factor_gt           0.0613
_refine_ls_shift/su_max          0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.1132P)^2^+1.2770P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1852
_reflns_number_gt                6613
_reflns_number_total             8886
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c4cc03645j2.cif
_cod_data_source_block           3-17
_cod_database_code               7115621