Synthesis and Properties of [7]Helicene-like Compounds Fused with a Fluorene Unit.
Oyama, Hiromi; Akiyama, Midori; Nakano, Koji; Naito, Masanobu; Nobusawa, Kazuyuki; Nozaki, Kyoko; Organic letters 18 (2016) 3654–3657; doi:10.1021/acs.orglett.6b01708

data_1555636
_publ_section_title
;
 Synthesis and Properties of [7]Helicene-like Compounds Fused with a
 Fluorene Unit.
;
_journal_issue                   15
_journal_name_full               'Organic letters'
_journal_page_first              3654
_journal_page_last               3657
_journal_paper_doi               10.1021/acs.orglett.6b01708
_journal_volume                  18
_journal_year                    2016
_chemical_formula_sum            'C35 H22'
_chemical_formula_weight         442.52
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014
_cell_angle_alpha                90
_cell_angle_beta                 102.720(5)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   12.558(4)
_cell_length_b                   14.180(4)
_cell_length_c                   26.385(8)
_cell_measurement_reflns_used    11764
_cell_measurement_temperature    93
_cell_measurement_theta_max      31.7
_cell_measurement_theta_min      2.5
_cell_volume                     4583(2)
_computing_cell_refinement
;
Rigaku CrystalClear-SM Expert 2.0 r3
;
_computing_data_collection
;
Rigaku CrystalClear-SM Expert 2.0 r3
;
_computing_data_reduction
;
Rigaku CrystalClear-SM Expert 2.0 r3
;
_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 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      93(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku Saturn724 CCD'
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_radiation_monochromator  'Graphite Monochromator'
_diffrn_radiation_source         'rotating-anode X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0874
_diffrn_reflns_av_unetI/netI     0.0528
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            72605
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.499
_diffrn_reflns_theta_min         2.456
_diffrn_source                   'Sealed Tube'
_exptl_absorpt_coefficient_mu    0.073
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.873
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communicatio'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.283
_exptl_crystal_description       Platelet
_exptl_crystal_F_000             1856
_exptl_crystal_size_max          0.500
_exptl_crystal_size_mid          0.500
_exptl_crystal_size_min          0.050
_refine_diff_density_max         0.227
_refine_diff_density_min         -0.236
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.257
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     631
_refine_ls_number_reflns         10523
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.257
_refine_ls_R_factor_all          0.0985
_refine_ls_R_factor_gt           0.0817
_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^)+(0.0434P)^2^+1.9380P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1464
_refine_ls_wR_factor_ref         0.1540
_reflns_Friedel_coverage         0.000
_reflns_number_gt                9028
_reflns_number_total             10523
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ol6b01708_si_003.cif
_cod_data_source_block           3b
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-scan' was
changed to 'multi-scan' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1555636
_shelx_estimated_absorpt_t_min   0.965
_shelx_estimated_absorpt_t_max   0.996
_shelxl_version_number           2014-3
_shelx_res_checksum              60075
_shelx_hkl_checksum              78446