Probing Electronic Communication in Stable Benzene-Bridged Verdazyl Diradicals
Joe B. Gilroy; Steve D. J. McKinnon; Pierre Kennepohl; Mark S. Zsombor; Michael J. Ferguson; Laurence K. Thompson; Robin G. Hicks; Journal of Organic Chemistry 72 (2007) 8062–8069; doi:10.1021/jo7014449

data_4023008
_publ_section_title
;
 Probing Electronic Communication in Stable Benzene-Bridged
 Verdazyl Diradicals
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              8062
_journal_page_last               8069
_journal_paper_doi               10.1021/jo7014449
_journal_volume                  72
_journal_year                    2007
_chemical_formula_moiety         'C22 H32 N8 O2'
_chemical_formula_sum            'C22 H32 N8 O2'
_chemical_formula_weight         440.56
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-I 2ya'
_symmetry_space_group_name_H-M   'I 1 2/a 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                 106.528(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   25.546(3)
_cell_length_b                   9.3143(9)
_cell_length_c                   21.518(2)
_cell_measurement_reflns_used    7890
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      26.38
_cell_measurement_theta_min      2.19
_cell_volume                     4908.6(8)
_computing_cell_refinement       'Bruker SAINT (Bruker, 1997)'
_computing_data_collection       'Bruker SMART (Bruker, 1997)'
_computing_data_reduction        'Bruker SAINT (Bruker, 1997)'
_computing_molecular_graphics    'Bruker SHELXTL (Bruker, 1997)'
_computing_publication_material  'Bruker SHELXTL (Bruker, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      193(2)
_diffrn_detector_area_resol_mean 8.192
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type
'Bruker PLATFORM diffractometer/SMART 1000 CCD area detector'
_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  0.0266
_diffrn_reflns_av_sigmaI/netI    0.0235
_diffrn_reflns_limit_h_max       31
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            18392
_diffrn_reflns_theta_full        26.41
_diffrn_reflns_theta_max         26.41
_diffrn_reflns_theta_min         1.66
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.9841
_exptl_absorpt_correction_T_min  0.9555
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.192
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1888
_exptl_crystal_size_max          0.57
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.280
_refine_diff_density_min         -0.217
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         5046
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0608
_refine_ls_R_factor_gt           0.0462
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0659P)^2^+3.0886P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1245
_refine_ls_wR_factor_ref         0.1376
_reflns_number_gt                3937
_reflns_number_total             5046
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            jo7014449-File003.cif
_cod_data_source_block           vic0604
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'I 2/a'
_cod_database_code               4023008