Synthesis, Properties, and Crystal Structures of π-Extended Double [6]Helicenes: Contorted Multi-Dimensional Stacking Lattice
Fujikawa, Takao; Mitoma, Nobuhiko; Wakamiya, Atsushi; Saeki, Akinori; Segawa, Yasutomo; Itami, Kenichiro; Org. Biomol. Chem.  (2017) –; doi:10.1039/C7OB00987A

data_7155640
_publ_section_title
;
 Synthesis, Properties, and Crystal Structures of \p-Extended Double
 [6]Helicenes: Contorted Multi-Dimensional Stacking Lattice
;
_journal_name_full               'Org. Biomol. Chem.'
_journal_paper_doi               10.1039/C7OB00987A
_journal_year                    2017
_chemical_formula_sum            'C76.5 H64'
_chemical_formula_weight         983.27
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2017-04-07 deposited with the CCDC.
2017-05-12 downloaded from the CCDC.
;
_cell_angle_alpha                63.011(5)
_cell_angle_beta                 72.188(7)
_cell_angle_gamma                78.909(7)
_cell_formula_units_Z            2
_cell_length_a                   11.0983(7)
_cell_length_b                   16.4648(10)
_cell_length_c                   16.7317(8)
_cell_measurement_reflns_used    3567
_cell_measurement_temperature    123
_cell_measurement_theta_max      25.4
_cell_measurement_theta_min      3.0
_cell_volume                     2588.7(3)
_computing_cell_refinement
;
Rigaku CrystalClear-SM Expert 2.1 b29
;
_computing_data_collection
;
Rigaku CrystalClear-SM Expert 2.1 b29
;
_computing_data_reduction
;
Rigaku CrystalClear-SM Expert 2.1 b29
;
_computing_molecular_graphics
'Yadokari-XG 2009 (Wakita Nemoto et al., 2009)'
_computing_publication_material
'Yadokari-XG 2009 (Wakita,Nemoto et al., 2009)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    SIR-97
_diffrn_ambient_temperature      123
_diffrn_detector_area_resol_mean 5.8140
_diffrn_measured_fraction_theta_full 0.965
_diffrn_measured_fraction_theta_max 0.965
_diffrn_measurement_device_type
;
Rigaku CrystalClear-SM Expert 2.1 b29
;
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0414
_diffrn_reflns_av_unetI/netI     0.0406
_diffrn_reflns_Laue_measured_fraction_full 0.965
_diffrn_reflns_Laue_measured_fraction_max 0.965
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            19357
_diffrn_reflns_point_group_measured_fraction_full 0.965
_diffrn_reflns_point_group_measured_fraction_max 0.965
_diffrn_reflns_theta_full        24.999
_diffrn_reflns_theta_max         24.999
_diffrn_reflns_theta_min         3.011
_diffrn_source                   'Rotating Anode'
_exptl_absorpt_coefficient_mu    0.071
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.863
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            Red
_exptl_crystal_density_diffrn    1.261
_exptl_crystal_description       Block
_exptl_crystal_F_000             1046
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.579
_refine_diff_density_min         -0.258
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.187
_refine_ls_matrix_type           full
_refine_ls_number_parameters     788
_refine_ls_number_reflns         8814
_refine_ls_number_restraints     137
_refine_ls_restrained_S_all      1.192
_refine_ls_R_factor_all          0.1027
_refine_ls_R_factor_gt           0.0713
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0573P)^2^+3.3292P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1617
_refine_ls_wR_factor_ref         0.1990
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6425
_reflns_number_total             8814
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7ob00987a2.cif
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_formula_sum        'C76.50 H64'
_cod_database_code               7155640
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.986
_shelx_estimated_absorpt_t_max   0.993
_shelx_res_checksum              91346