Biomimetic oxidative dimerization of anodically generated stilbene radical cations: effect of aromatic substitution on product distribution and reaction pathways.
Hong, Fong-Jiao; Low, Yun-Yee; Chong, Kam-Weng; Thomas, Noel F.; Kam, Toh-Seok; The Journal of organic chemistry 79 (2014) 4528–4543; doi:10.1021/jo500559r

data_4029393
_publ_section_title
;
 Biomimetic oxidative dimerization of anodically generated stilbene
 radical cations: effect of aromatic substitution on product distribution
 and reaction pathways.
;
_journal_issue                   10
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              4528
_journal_page_last               4543
_journal_paper_doi               10.1021/jo500559r
_journal_volume                  79
_journal_year                    2014
_chemical_formula_moiety         'C38 H44 O3'
_chemical_formula_sum            'C38 H44 O3'
_chemical_formula_weight         548.73
_chemical_melting_point          135.0(10)
_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                90.00
_cell_angle_beta                 90.350(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   25.956(11)
_cell_length_b                   6.182(3)
_cell_length_c                   19.745(8)
_cell_measurement_reflns_used    1621
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      23.37
_cell_measurement_theta_min      2.35
_cell_volume                     3168(2)
_computing_cell_refinement       'SAINT (Bruker, 2007)'
_computing_data_collection       'APEX2 (Bruker, 2007)'
_computing_data_reduction        'SAINT (Bruker, 2007)'
_computing_molecular_graphics    'X-SEED (Barbour, 2001)'
_computing_publication_material
;  
SHELXL-97 (Sheldrick, 2008), enCIFer (Allen et al., 2004),
;
_computing_structure_refinement
;  
SHELXL97 (Sheldrick, 2008), Olex2 (Dolomanov & Puschmann, 2009)
;
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.966
_diffrn_measured_fraction_theta_max 0.966
_diffrn_measurement_device_type  'Bruker SMART APEX CCD'
_diffrn_measurement_method       '\w 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  0.1124
_diffrn_reflns_av_sigmaI/netI    0.1460
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -32
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            14723
_diffrn_reflns_theta_full        26.83
_diffrn_reflns_theta_max         26.83
_diffrn_reflns_theta_min         0.78
_exptl_absorpt_coefficient_mu    0.071
_exptl_absorpt_correction_T_max  0.8620
_exptl_absorpt_correction_T_min  0.6412
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2006)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.151
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needles
_exptl_crystal_F_000             1184
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.576
_refine_diff_density_min         -0.302
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.826
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     378
_refine_ls_number_reflns         6565
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.826
_refine_ls_R_factor_all          0.1405
_refine_ls_R_factor_gt           0.0643
_refine_ls_shift/su_max          <0.001
_refine_ls_shift/su_mean         <0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.3631P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1506
_refine_ls_wR_factor_ref         0.1912
_reflns_number_gt                3327
_reflns_number_total             6565
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            jo500559r_si_011.cif
_cod_data_source_block           hfj1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '134-136' was changed to '135.0(10)'
- the average value was taken and precision was
estimated.

'_symmetry_cell_setting' value 'Monoclinic' changed to
'monoclinic' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/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 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 4029384--4029417.cif.
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4029393