Selective synthesis and crystal structure of [10]cycloparaphenylene.
Kayahara, Eiichi; Sakamoto, Yoichi; Suzuki, Toshiyasu; Yamago, Shigeru; Organic letters 14 (2012) 3284–3287; doi:10.1021/ol301242t

data_1508571
_publ_section_title
;
 Selective synthesis and crystal structure of [10]cycloparaphenylene.
;
_journal_issue                   13
_journal_name_full               'Organic letters'
_journal_page_first              3284
_journal_page_last               3287
_journal_paper_doi               10.1021/ol301242t
_journal_volume                  14
_journal_year                    2012
_chemical_formula_moiety         'C60 H40, C6 H14'
_chemical_formula_sum            'C66 H54'
_chemical_formula_weight         847.09
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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                90.00
_cell_angle_beta                 108.855(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   15.8912(16)
_cell_length_b                   8.1477(6)
_cell_length_c                   21.033(2)
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      25.5
_cell_measurement_theta_min      3.17
_cell_volume                     2577.2(4)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalClear
_computing_molecular_graphics
'Yadokari-XG 2011 (Wakita Nemoto et al., 2011)'
_computing_publication_material
'Yadokari-XG 2011 (Wakita,Nemoto et al., 2011)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      153(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Rigaku Mercury'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0457
_diffrn_reflns_av_sigmaI/netI    0.0482
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            22194
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         3.17
_exptl_absorpt_coefficient_mu    0.062
_exptl_absorpt_correction_T_max  0.9939
_exptl_absorpt_correction_T_min  0.9818
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Jacobson, R. (1998) Private communication
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.092
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             900
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.441
_refine_diff_density_min         -0.258
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.131
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     460
_refine_ls_number_reflns         4774
_refine_ls_number_restraints     258
_refine_ls_restrained_S_all      1.116
_refine_ls_R_factor_all          0.0973
_refine_ls_R_factor_gt           0.0772
_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^)+(0.1103P)^2^+0.8990P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2008
_refine_ls_wR_factor_ref         0.2207
_reflns_number_gt                3680
_reflns_number_total             4774
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             1507834
_cod_data_source_file            ol301242t_si_002.cif
_cod_data_source_block           cpp
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               1508571