Nanochannel array within a multilayered network of a planarized dehydro[24]annulene.
Suzuki, Mitsuharu; Comito, Angelo; Khan, Saeed I.; Rubin, Yves; Organic letters 12 (2010) 2346–2349; doi:10.1021/ol1006967

data_1502978
_publ_section_title
;
 Nanochannel array within a multilayered network of a planarized
 dehydro[24]annulene.
;
_journal_issue                   10
_journal_name_full               'Organic letters'
_journal_page_first              2346
_journal_page_last               2349
_journal_paper_doi               10.1021/ol1006967
_journal_volume                  12
_journal_year                    2010
_chemical_formula_moiety         'C18 H6'
_chemical_formula_sum            'C18 H6'
_chemical_formula_weight         222.23
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           152
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'P 31 2"'
_symmetry_space_group_name_H-M   'P 31 2 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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            6
_cell_length_a                   10.4772(17)
_cell_length_b                   10.4772(17)
_cell_length_c                   19.925(4)
_cell_measurement_reflns_used    922
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.16
_cell_measurement_theta_min      2.46
_cell_volume                     1894.2(6)
_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 0.999
_diffrn_measured_fraction_theta_max 0.985
_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  0.0388
_diffrn_reflns_av_sigmaI/netI    0.0243
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            12238
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         2.24
_exptl_absorpt_coefficient_mu    0.067
_exptl_absorpt_correction_T_max  0.9803
_exptl_absorpt_correction_T_min  0.9450
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Bruker)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.169
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             684
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.169
_refine_diff_density_min         -0.172
_refine_diff_density_rms         0.036
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.128
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         1787
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.128
_refine_ls_R_factor_all          0.0605
_refine_ls_R_factor_gt           0.0392
_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^)+(0.0664P)^2^+0.1603P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1191
_refine_ls_wR_factor_ref         0.1284
_reflns_number_gt                1335
_reflns_number_total             1787
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol1006967_si_001.cif
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Trigonal' changed to 'trigonal'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               1502978