Octazethrene and Its Isomer with Different Diradical Characters and Chemical Reactivity: The Role of the Bridge Structure.
Hu, Pan; Lee, Sangsu; Park, Kyu Hyung; Das, Soumyajit; Herng, Tun Seng; Gonçalves, Théo P; Huang, Kuo-Wei; Ding, Jun; Kim, Dongho; Wu, Jishan; The Journal of organic chemistry 81 (2016) 2911–2919; doi:10.1021/acs.joc.6b00172

data_4031952
_publ_section_title
;
 Octazethrene and Its Isomer with Different Diradical Characters and
 Chemical Reactivity: The Role of the Bridge Structure.
;
_journal_issue                   7
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              2911
_journal_page_last               2919
_journal_paper_doi               10.1021/acs.joc.6b00172
_journal_volume                  81
_journal_year                    2016
_chemical_formula_sum            'C63 H48 F10 O2'
_chemical_formula_weight         1027.01
_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_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/6
_cell_angle_alpha                95.316(2)
_cell_angle_beta                 99.2040(10)
_cell_angle_gamma                114.8070(10)
_cell_formula_units_Z            1
_cell_length_a                   9.2006(4)
_cell_length_b                   10.9573(6)
_cell_length_c                   13.7554(6)
_cell_measurement_reflns_used    9931
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.31
_cell_measurement_theta_min      2.79
_cell_volume                     1222.66(10)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0247
_diffrn_reflns_av_unetI/netI     0.0211
_diffrn_reflns_laue_measured_fraction_full 0.999
_diffrn_reflns_laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            28861
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.323
_diffrn_reflns_theta_min         2.350
_diffrn_source                   'Sealed Microfocusing Source'
_exptl_absorpt_coefficient_mu    0.109
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.7149
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs, (Sheldrick 2012)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.395
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'Not Measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             532
_exptl_crystal_size_max          0.397
_exptl_crystal_size_mid          0.211
_exptl_crystal_size_min          0.134
_refine_diff_density_max         0.848
_refine_diff_density_min         -0.228
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     345
_refine_ls_number_reflns         6093
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0635
_refine_ls_R_factor_gt           0.0529
_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^)+(0.0639P)^2^+0.9927P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1401
_refine_ls_wR_factor_ref         0.1467
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5144
_reflns_number_total             6093
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo6b00172_si_003.cif
_cod_data_source_block           E531
_cod_depositor_comments
;
The following automatic conversions were performed:

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

'_exptl_crystal_density_meas' value 'Not Measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 
;
_cod_database_code               4031952
_shelx_estimated_absorpt_t_min   0.958
_shelx_estimated_absorpt_t_max   0.986
_shelxl_version_number           2014/6
_shelx_res_checksum              98400
_shelx_hkl_checksum              74520