C3-Symmetrical Tribenzotriquinacene Derivatives: Optical Resolution through Cryptophane Synthesis and Supramolecular Self-Assembly into Nanotubes
Tao Wang; Yu-Fei Zhang; Qin-Qing Hou; Wen-Rong Xu; Xiao-Ping Cao; Hak-Fun Chow; Dietmar Kuck; Journal of Organic Chemistry 78 (2013) 1062–1069; doi:10.1021/jo302470v

data_4027918
_publ_section_title
;
 C3-Symmetrical Tribenzotriquinacene Derivatives: Optical Resolution
 through Cryptophane Synthesis and Supramolecular Self-Assembly into
 Nanotubes
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1062
_journal_page_last               1069
_journal_paper_doi               10.1021/jo302470v
_journal_volume                  78
_journal_year                    2013
_chemical_formula_sum            'C20 H20 O2.67'
_chemical_formula_weight         303.03
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           147
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-P 3'
_symmetry_space_group_name_H-M   'P -3'
_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                120.00
_cell_formula_units_Z            3
_cell_length_a                   11.9000(9)
_cell_length_b                   11.9000(9)
_cell_length_c                   9.9832(7)
_cell_measurement_reflns_used    1703
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.56
_cell_measurement_theta_min      2.84
_cell_volume                     1224.32(16)
_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 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0269
_diffrn_reflns_av_sigmaI/netI    0.0226
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            6426
_diffrn_reflns_theta_full        25.48
_diffrn_reflns_theta_max         25.48
_diffrn_reflns_theta_min         1.98
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.9754
_exptl_absorpt_correction_T_min  0.9723
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.233
_exptl_crystal_description       block
_exptl_crystal_F_000             484
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.31
_refine_diff_density_max         0.562
_refine_diff_density_min         -0.204
_refine_diff_density_rms         0.055
_refine_ls_extinction_coef       0.005(7)
_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   1.076
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     113
_refine_ls_number_reflns         1524
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.077
_refine_ls_R_factor_all          0.0715
_refine_ls_R_factor_gt           0.0592
_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^)+(0.1180P)^2^+0.4270P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1851
_refine_ls_wR_factor_ref         0.1970
_reflns_number_gt                1211
_reflns_number_total             1524
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo302470v_si_005.cif
_cod_data_source_block           p-3
_cod_database_code               4027918