Disproportionation-induced solid-state fluorescence in 6,13-dihydropentacenes
Tajima, Tomoyuki; Sanda, Rai; Nishihara, Katsuya; Shirai, Hitoshi; Okuda, Yasuhiro; Orita, Akihiro; Takaguchi, Yutaka; RSC Advances 9 (2019) 17035–; doi:10.1039/C9RA03297E

data_7232853
_publ_section_title
;
 Disproportionation-induced solid-state fluorescence in
 6,13-dihydropentacenes
;
_journal_issue                   30
_journal_name_full               'RSC Advances'
_journal_page_first              17035
_journal_paper_doi               10.1039/C9RA03297E
_journal_volume                  9
_journal_year                    2019
_chemical_formula_moiety         'C38 H38 N2 O4'
_chemical_formula_sum            'C38 H38 N2 O4'
_chemical_formula_weight         586.70
_chemical_properties_physical    Heat-sensitive,Photo-sensitive
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_audit_block_doi                 10.5517/ccdc.csd.cc22586r
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-04-23 deposited with the CCDC.    2019-05-17 downloaded from the CCDC.
;
_cell_angle_alpha                86.36(9)
_cell_angle_beta                 89.245(10)
_cell_angle_gamma                84.00(6)
_cell_formula_units_Z            1
_cell_length_a                   4.755(15)
_cell_length_b                   6.057(19)
_cell_length_c                   27.46(9)
_cell_measurement_reflns_used    1837
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      29.3
_cell_measurement_theta_min      3.0
_cell_volume                     785(4)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalClear
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      110(2)
_diffrn_measured_fraction_theta_full 0.909
_diffrn_measured_fraction_theta_max 0.909
_diffrn_measurement_device_type  'Rigaku/Saturn70 CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0597
_diffrn_reflns_av_unetI/netI     0.0935
_diffrn_reflns_Laue_measured_fraction_full 0.909
_diffrn_reflns_Laue_measured_fraction_max 0.909
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            5678
_diffrn_reflns_point_group_measured_fraction_full 0.909
_diffrn_reflns_point_group_measured_fraction_max 0.909
_diffrn_reflns_theta_full        24.985
_diffrn_reflns_theta_max         24.985
_diffrn_reflns_theta_min         2.973
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.241
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             312
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.030
_refine_diff_density_max         0.282
_refine_diff_density_min         -0.278
_refine_diff_density_rms         0.073
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     200
_refine_ls_number_reflns         2516
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.1026
_refine_ls_R_factor_gt           0.0616
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0989P)^2^+0.8611P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1529
_refine_ls_wR_factor_ref         0.2120
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1680
_reflns_number_total             2516
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ra03297e2.cif
_cod_data_source_block           3ap
_cod_database_code               7232853
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.984
_shelx_estimated_absorpt_t_max   0.998
_shelx_res_checksum              91095