A novel Kolbe reaction pathway for a selective one- and two-electron reduction of azo compounds.
Fu, Wen-Fu; Li, Huifang-Jie; Wang, De-Hui; Zhou, Liang-Jun; Li, Li; Gan, Xin; Xu, Quan-Qing; Song, Hai-Bin; Chemical communications (Cambridge, England) 34 (2009) 5524–5526; doi:10.1039/b906910k

data_7104725
_publ_section_title
;
 A novel Kolbe reaction pathway for a selective one- and two-electron
 reduction of azo compounds.
;
_journal_issue                   37
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              5524
_journal_page_last               5526
_journal_paper_doi               10.1039/b906910k
_journal_volume                  34
_journal_year                    2009
_chemical_formula_sum            'C11 H11 Cl3 N3'
_chemical_formula_weight         291.58
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   'geom or difmap'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 95.07(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.3383(15)
_cell_length_b                   22.678(5)
_cell_length_c                   8.0867(16)
_cell_measurement_reflns_used    6437
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.03
_cell_measurement_theta_min      2.68
_cell_volume                     1340.5(5)
_computing_cell_refinement       Rapid-AUTO
_computing_data_collection       'Rapid-AUTO (Rigaku,2000)'
_computing_data_reduction        'CrystalStructure (Rigaku/MSC,2000)'
_computing_molecular_graphics    'Siemens SHELXTL V4.2,(Sheldrick,1990)'
_computing_publication_material  SHELXL-97,(Sheldrick,1997)
_computing_structure_refinement  SHELXL-97,(Sheldrick,1997)
_computing_structure_solution    SHELXS-97,(Sheldrick,1997)
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 10.00
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.976
_diffrn_measurement_device_type  'Rigaku RAXIS RAPID IP'
_diffrn_measurement_method       \W
_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  0.0347
_diffrn_reflns_av_sigmaI/netI    0.1118
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            6437
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         2.68
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.664
_exptl_absorpt_correction_T_max  0.923
_exptl_absorpt_correction_T_min  0.767
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
HIGASHI, T. (1995). Abscor-Empirical
Absorption Correction based on Fourier
Series Approximation.
Rigaku Corporation,Tokyo,Japan.
;
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.445
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             596
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.200
_refine_diff_density_min         -0.247
_refine_diff_density_rms         0.044
_refine_ls_extinction_coef       0.0040(13)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.931
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     155
_refine_ls_number_reflns         2318
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.931
_refine_ls_R_factor_all          0.1689
_refine_ls_R_factor_gt           0.0551
_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^)+(0.0500P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1204
_refine_ls_wR_factor_ref         0.1399
_reflns_number_gt                766
_reflns_number_total             2318
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b906910k.txt
_cod_data_source_block           a
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7104725