The Question of Aromaticity in Open-Shell Cations and Anions as Ion-Radical Offsprings of Polycyclic Aromatic and Antiaromatic Hydrocarbons
Sergiy V. Rosokha; Jay K. Kochi; Journal of Organic Chemistry 71 (2006) 9357–9365; doi:10.1021/jo061695a

data_4022145
_publ_section_title
;
 The Question of Aromaticity in Open-Shell Cations and Anions as
 Ion-Radical Offsprings of Polycyclic Aromatic and Antiaromatic Hydrocarbons
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              9357
_journal_page_last               9365
_journal_paper_doi               10.1021/jo061695a
_journal_volume                  71
_journal_year                    2006
_chemical_formula_moiety         'C18 H36 K N2 O6, 2(C4 H8 O), C10 H8'
_chemical_formula_sum            'C36 H60 K N2 O8'
_chemical_formula_weight         687.96
_chemical_name_common            '[Crypt K] Naph * THF'
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 99.63(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.888(8)
_cell_length_b                   17.464(8)
_cell_length_c                   20.840(10)
_cell_measurement_reflns_used    116
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      20.68
_cell_measurement_theta_min      3.96
_cell_volume                     3907(4)
_computing_cell_refinement       'SAINT V6.28 (BrukerAXS, 1997-2001)'
_computing_data_collection       'SMART V5.630 (BrukerAXS, 1997-2001)'
_computing_data_reduction        'SAINT & SADABS V2.06 (Sheldrick, 2000)'
_computing_molecular_graphics    'XP V5.06 (BrukerAXS, 1997-99)'
_computing_publication_material  'SHELXL-93, XCIF V5.05 (BrukerAXS, 1997-99)'
_computing_structure_refinement  'SHELXTL v. 6.12 (Sheldrick, 2001)'
_computing_structure_solution    'SHELXTL v. 6.12 (Sheldrick, 2001)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device       'Siemens SMART'
_diffrn_measurement_method
;
\w-scan, frame range 0.3 deg, hemisphere
;
_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  0.0579
_diffrn_reflns_av_sigmaI/netI    0.0529
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            29545
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.51
_diffrn_reflns_theta_min         2.23
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.184
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.170
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1492
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.747
_refine_diff_density_min         -0.409
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.997
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         5883
_refine_ls_number_restraints     10
_refine_ls_restrained_S_all      1.003
_refine_ls_R_factor_all          0.0862
_refine_ls_R_factor_gt           0.0611
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1138P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1901
_refine_ls_wR_factor_ref         0.2049
_reflns_number_gt                3983
_reflns_number_total             5883
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo061695asi20060815_022942.cif
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4022145