Oxidative dimerization of N-protected and free indole derivatives toward 3,3′-biindoles via Pd-catalyzed direct C–H transformations
Li, Yang; Wang, Wen-Hua; Yang, Shang-Dong; Li, Bi-Jie; Feng, Chun; Shi, Zhang-Jie; Chemical Communications 46 (2010) 4553–; doi:10.1039/c0cc00486c

data_7112874
_publ_section_title
;
 Oxidative dimerization of N-protected and free indole derivatives toward
 3,3&#x2032;-biindoles via Pd-catalyzed direct C--H transformations
;
_journal_issue                   25
_journal_name_full               'Chemical Communications'
_journal_page_first              4553
_journal_paper_doi               10.1039/c0cc00486c
_journal_volume                  46
_journal_year                    2010
_chemical_formula_moiety         'C18 H16 N2'
_chemical_formula_sum            'C18 H16 N2'
_chemical_formula_weight         260.33
_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
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 109.73(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.4851(13)
_cell_length_b                   13.409(3)
_cell_length_c                   8.1723(16)
_cell_measurement_reflns_used    435
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.17
_cell_volume                     668.9(3)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics    'XP in Siemens SHELXTL (Sheldrick, 1994)'
_computing_publication_material  'SHELX97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'Saturn724+ CCD'
_diffrn_measurement_method       '\w scans at fixed \c = 45\%'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0346
_diffrn_reflns_av_sigmaI/netI    0.0266
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            4364
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         3.04
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.9924
_exptl_absorpt_correction_T_min  0.9833
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'CrystalClear (Rigaku Inc., 2008)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.292
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             276
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.221
_refine_diff_density_min         -0.210
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.154
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     92
_refine_ls_number_reflns         1160
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.154
_refine_ls_R_factor_all          0.0533
_refine_ls_R_factor_gt           0.0492
_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^)+(0.0453P)^2^+0.2941P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1141
_refine_ls_wR_factor_ref         0.1175
_reflns_number_gt                1101
_reflns_number_total             1160
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0cc00486c.txt
_cod_data_source_block           4a
_cod_original_cell_volume        668.9(2)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7112874