Biscoumarin-containing acenes as stable organic semiconductors for photocatalytic oxygen reduction to hydrogen peroxide
Węcławski, Marek K.; Jakešová, Marie; Charyton, Martyna; Demitri, Nicola; Koszarna, Beata; Oppelt, Kerstin; Sariciftci, Serdar; Gryko, Daniel T.; Głowacki, Eric Daniel; J. Mater. Chem. A 5 (2017) 20780–; doi:10.1039/C7TA05882A

data_7236626
_publ_section_title
;
 Biscoumarin-containing acenes as stable organic semiconductors for
 photocatalytic oxygen reduction to hydrogen peroxide
;
_journal_issue                   39
_journal_name_full               'J. Mater. Chem. A'
_journal_page_first              20780
_journal_paper_doi               10.1039/C7TA05882A
_journal_volume                  5
_journal_year                    2017
_chemical_formula_moiety         'C30 H8 F4 O4'
_chemical_formula_sum            'C30 H8 F4 O4'
_chemical_formula_weight         508.36
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2017-02-07 deposited with the CCDC.
2017-09-05 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 94.27(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.239(1)
_cell_length_b                   10.792(2)
_cell_length_c                   24.598(5)
_cell_measurement_reflns_used    751
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.661
_cell_measurement_theta_min      1.635
_cell_volume                     1916.3(6)
_computing_cell_refinement       XDS
_computing_data_collection       'Elettra XRD1 Data Collection SW'
_computing_data_reduction        'XDS - CCP4'
_computing_molecular_graphics    'Ortep3 for Windows'
_computing_publication_material  enCIFer/publCIF
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    Sir2011
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type
;
'Huber 4-circles Kappa Goniometer, Pilatus 2M detector'
;
_diffrn_measurement_method       'Rotating crystal'
_diffrn_radiation_type           Synchrotron
_diffrn_radiation_wavelength     0.700
_diffrn_reflns_av_R_equivalents  0.0682
_diffrn_reflns_av_unetI/netI     0.0483
_diffrn_reflns_Laue_measured_fraction_full 0.990
_diffrn_reflns_Laue_measured_fraction_max 0.985
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            21123
_diffrn_reflns_point_group_measured_fraction_full 0.990
_diffrn_reflns_point_group_measured_fraction_max 0.985
_diffrn_reflns_theta_full        24.835
_diffrn_reflns_theta_max         26.661
_diffrn_reflns_theta_min         1.635
_diffrn_source                   'Elettra Synchrotron - XRD1 BL'
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.136
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Orange
_exptl_crystal_density_diffrn    1.762
_exptl_crystal_description       'Thin rod'
_exptl_crystal_F_000             1024
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.050
_exptl_crystal_size_min          0.010
_refine_diff_density_max         0.409
_refine_diff_density_min         -0.278
_refine_diff_density_rms         0.081
_refine_ls_extinction_coef       0.0095(13)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     344
_refine_ls_number_reflns         4172
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0949
_refine_ls_R_factor_gt           0.0537
_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^)+(0.0869P)^2^+0.3355P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1373
_refine_ls_wR_factor_ref         0.1636
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2544
_reflns_number_total             4172
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7ta05882a2.cif
_cod_data_source_block           9at100K
_cod_original_cell_volume        1916.3(7)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7236626
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.973
_shelx_estimated_absorpt_t_max   0.999