Synthesis of [6.8]3Cyclacene: Conjugated Belt and Model for an Unusual Type of Carbon Nanotube
Birgit Esser; Frank Rominger; Rolf Gleiter; Journal of the American Chemical Society 130 (2008) 6716–6717; doi:10.1021/ja801918n

data_4107829
_publ_contact_author_address
;
        Organisch-Chemisches Institut
        Universit\"at Heidelberg
        Im Neuenheimer Feld 270
        D-69120 Heidelberg
        Germany
;
_publ_contact_author_email       rolf.gleiter@oci.uni-heidelberg.de
_publ_contact_author_fax         '049 6221 54- 4205'
_publ_contact_author_name        'Gleiter, Rolf'
_publ_contact_author_phone       '049 6221 54- 8400'
_publ_section_title
;
 Synthesis of [6.8]3Cyclacene: Conjugated Belt and Model for an Unusual
 Type of Carbon Nanotube
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6716
_journal_page_last               6717
_journal_paper_doi               10.1021/ja801918n
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'C30 H30'
_chemical_formula_weight         390.54
_chemical_name_common            8a_in_paper
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                90.0
_cell_angle_beta                 112.297(1)
_cell_angle_gamma                90.0
_cell_formula_units_Z            4
_cell_length_a                   13.5928(4)
_cell_length_b                   12.7499(4)
_cell_length_c                   14.2697(4)
_cell_measurement_temperature    200(2)
_cell_volume                     2288.13(12)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      200(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  0.0569
_diffrn_reflns_av_sigmaI/netI    0.0438
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            15891
_diffrn_reflns_theta_full        23.00
_diffrn_reflns_theta_max         23.00
_diffrn_reflns_theta_min         1.62
_exptl_absorpt_coefficient_mu    0.064
_exptl_absorpt_correction_T_max  0.9962
_exptl_absorpt_correction_T_min  0.9750
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Blessing, Acta Cryst. (1995) A51 33-38.'
_exptl_crystal_colour            colouless
_exptl_crystal_density_diffrn    1.134
_exptl_crystal_density_meas      0
_exptl_crystal_description       plates
_exptl_crystal_F_000             840
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.134
_refine_diff_density_min         -0.178
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.012
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     391
_refine_ls_number_reflns         3163
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.012
_refine_ls_R_factor_all          0.0596
_refine_ls_R_factor_gt           0.0391
_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^)+(0.0638P)^2^+0.1086P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0938
_refine_ls_wR_factor_ref         0.1059
_reflns_number_gt                2355
_reflns_number_total             3163
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja801918n-file003_3.cif
_cod_data_source_block           be14
_cod_original_cell_volume        2288.1(1)
_cod_database_code               4107829