A Naphthalene with Unusual Bond Alternation Made by Annelation with Bicyclo[2.1.1]hexene Units: Aromaticity and Reactivity
Takayuki Uto; Tohru Nishinaga; Akira Matsuura; Ryota Inoue; Koichi Komatsu; Journal of the American Chemical Society 127 (2005) 10162–10163; doi:10.1021/ja053769q

data_4111829
_publ_section_title
;
 A Naphthalene with Unusual Bond Alternation Made by Annelation with
 Bicyclo[2.1.1]hexene Units: Aromaticity and Reactivity
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10162
_journal_page_last               10163
_journal_paper_doi               10.1021/ja053769q
_journal_volume                  127
_journal_year                    2005
_chemical_formula_moiety         'C18 H16 O2'
_chemical_formula_sum            'C18 H16 O2'
_chemical_formula_weight         264.31
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 102.517(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.537(2)
_cell_length_b                   8.775(2)
_cell_length_c                   9.099(2)
_cell_measurement_temperature    100(2)
_cell_volume                     665.4(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0253
_diffrn_reflns_av_sigmaI/netI    0.0404
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            3458
_diffrn_reflns_theta_full        24.98
_diffrn_reflns_theta_max         24.98
_diffrn_reflns_theta_min         2.29
_exptl_absorpt_coefficient_mu    0.085
_exptl_absorpt_correction_T_max  0.9916
_exptl_absorpt_correction_T_min  0.9750
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.319
_exptl_crystal_description       prism
_exptl_crystal_F_000             280
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.206
_refine_diff_density_min         -0.151
_refine_diff_density_rms         0.038
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -1.6(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         1991
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0394
_refine_ls_R_factor_gt           0.0352
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0507P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0823
_refine_ls_wR_factor_ref         0.0844
_reflns_number_gt                1831
_reflns_number_total             1991
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja053769qsi20050608_100340.cif
_cod_data_source_block           perox
_cod_original_cell_volume        665.5(3)
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               4111829