Reactivity of Anodically Generated 4-Methoxystilbene Cation Radicals: The Influence of Ortho-Substituted Hydroxymethyl, Aminomethyl, and Carboxylic Acid Groups.
Chong, Kam-Weng; Thomas, Noel F.; Low, Yun-Yee; Kam, Toh-Seok; The Journal of organic chemistry 83 (2018) 15087–15100; doi:10.1021/acs.joc.8b02360

data_4034731
_publ_section_title
;
 Reactivity of Anodically Generated 4-Methoxystilbene Cation Radicals: The
 Influence of Ortho-Substituted Hydroxymethyl, Aminomethyl, and Carboxylic
 Acid Groups.
;
_journal_issue                   24
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              15087
_journal_page_last               15100
_journal_paper_doi               10.1021/acs.joc.8b02360
_journal_volume                  83
_journal_year                    2018
_chemical_formula_moiety         'C32 H30 O4'
_chemical_formula_sum            'C32 H30 O4'
_chemical_formula_weight         478.56
_chemical_melting_point          176.0(10)
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 107.042(7)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   22.2566(14)
_cell_length_b                   5.7270(3)
_cell_length_c                   19.7415(14)
_cell_measurement_reflns_used    3687
_cell_measurement_temperature    145(2)
_cell_measurement_theta_max      30.2420
_cell_measurement_theta_min      3.7460
_cell_volume                     2405.8(3)
_computing_cell_refinement       'CrysAlisPro 1.171.38.43 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.43 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.43 (Rigaku OD, 2015)'
_computing_molecular_graphics    'X-SEED (Barbour, 2001)'
_computing_publication_material
'enCIFer (Allen, et. al., J. Applied Cryst., 37, 335-338, 2004)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      145(2)
_diffrn_detector_area_resol_mean 5.2020
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.868
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0172
_diffrn_reflns_av_unetI/netI     0.0256
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.868
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -30
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            6766
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.868
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.405
_diffrn_reflns_theta_min         3.760
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.79325
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.43 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.321
_exptl_crystal_description       block
_exptl_crystal_F_000             1016
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.391
_refine_diff_density_min         -0.212
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     164
_refine_ls_number_reflns         3161
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0493
_refine_ls_R_factor_gt           0.0433
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         <0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0510P)^2^+1.8862P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1091
_refine_ls_wR_factor_ref         0.1138
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2782
_reflns_number_total             3161
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo8b02360_si_002.cif
_cod_data_source_block           exp_6077
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_chemical_melting_point' value '175-177' was changed to
'176.0(10)' -- the average value was taken and precision was
estimated.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4034731
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              31717
_shelx_hkl_checksum              27642