Electron donors and acceptors based on 2,7-functionalized pyrene-4,5,9,10-tetraone
Shin-ichiro Kawano; Martin Baumgarten; Dennis Chercka; Volker Enkelmann; Klaus Mullen; Chem.Commun. 49 (2013) 5058–; doi:10.1039/c3cc39141h

data_7109312
_publ_section_title
;
 Electron donors and acceptors based on 2,7-functionalized
 pyrene-4,5,9,10-tetraone
;
_journal_name_full               Chem.Commun.
_journal_page_first              5058
_journal_paper_doi               10.1039/c3cc39141h
_journal_volume                  49
_journal_year                    2013
_chemical_formula_moiety         'C24 H28 N2 O4'
_chemical_formula_sum            'C24 H28 N2 O4'
_chemical_formula_weight         408.50
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             10-12-01
_audit_creation_method           CRYSTALS_ver_12.84
_cell_angle_alpha                90
_cell_angle_beta                 112.579(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   16.0033(9)
_cell_length_b                   6.9362(4)
_cell_length_c                   20.1144(9)
_cell_measurement_reflns_used    0
_cell_measurement_temperature    120
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_volume                     2061.6(2)
_computing_cell_refinement       'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1997-2001).'
_computing_data_reduction        'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SHELXS 86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      120
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.945
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.063
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            14114
_diffrn_reflns_theta_full        25.136
_diffrn_reflns_theta_max         29.923
_diffrn_reflns_theta_min         3.040
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.99
_exptl_absorpt_correction_T_min  0.87
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SORTAV (Blessing)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.316
_exptl_crystal_description       prism
_exptl_crystal_F_000             872
_exptl_crystal_size_max          0.41
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.43
_refine_diff_density_min         -0.55
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   0.9882
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     272
_refine_ls_number_reflns         3257
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0988
_refine_ls_R_factor_gt           0.0510
_refine_ls_shift/su_max          0.000544
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details
;
Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982)
[weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)]
where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax
Method = Robust Weighting (Prince, 1982)
W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^
A~i~ are:
3.14 3.57 1.35
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1764
_refine_ls_wR_factor_gt          0.0448
_refine_ls_wR_factor_ref         0.0448
_reflns_limit_h_max              20
_reflns_limit_h_min              -22
_reflns_limit_k_max              9
_reflns_limit_k_min              0
_reflns_limit_l_max              28
_reflns_limit_l_min              0
_reflns_number_gt                3257
_reflns_number_total             5651
_reflns_threshold_expression     I>2.0\s(I)
_cod_data_source_file            c3cc39141h.txt
_cod_data_source_block           omepynme
_cod_original_cell_volume        2061.61(19)
_cod_original_sg_symbol_H-M      'P 1 21/n 1 '
_cod_database_code               7109312