Single-wing Extended Tribenzotriquinacenes via Bowl-shaped Dehydrobenzene and Isobenzofuran Tribenzotriquinacene Derivatives
Wen-Xue Niu; Er-Qun Yang; Zi-Fa Shi; Xiao-Ping Cao; Dietmar Kuck; Journal of Organic Chemistry 77 (2012) 1422–1434; doi:10.1021/jo2022668

data_4026927
_publ_section_title
;
 Single-wing Extended Tribenzotriquinacenes via Bowl-shaped Dehydrobenzene
 and Isobenzofuran Tribenzotriquinacene Derivatives
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1422
_journal_page_last               1434
_journal_paper_doi               10.1021/jo2022668
_journal_volume                  77
_journal_year                    2012
_chemical_formula_sum            'C38 H30 O3'
_chemical_formula_weight         534.62
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.561(10)
_cell_length_b                   14.460(11)
_cell_length_c                   14.835(12)
_cell_measurement_reflns_used    1213
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      19.98
_cell_measurement_theta_min      2.55
_cell_volume                     2695(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0499
_diffrn_reflns_av_sigmaI/netI    0.0593
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            9373
_diffrn_reflns_theta_full        25.20
_diffrn_reflns_theta_max         25.20
_diffrn_reflns_theta_min         2.55
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.9774
_exptl_absorpt_correction_T_min  0.9742
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.318
_exptl_crystal_description       block
_exptl_crystal_F_000             1128
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.160
_refine_diff_density_min         -0.142
_refine_diff_density_rms         0.034
_refine_ls_extinction_coef       0.0062(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         2492
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0831
_refine_ls_R_factor_gt           0.0475
_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^)+(0.0328P)^2^+0.9301P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1051
_refine_ls_wR_factor_ref         0.1228
_reflns_number_gt                1602
_reflns_number_total             2492
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo2022668_si_004.cif
_cod_data_source_block           pnma
_cod_original_cell_volume        2694(4)
_cod_database_code               4026927