Facilitating Ir-Catalyzed C–H Alkynylation with Electrochemistry: Anodic Oxidation-Induced Reductive Elimination
Ye, Xiaohan; Wang, Chenhuan; Zhang, Shuyao; Wei, Jingwen; Shan, Chuan; Wojtas, Lukasz; Xie, Yan; Shi, Xiaodong; ACS Catalysis  (2020) 11693–11699; doi:10.1021/acscatal.0c03207

data_4518084
_publ_section_title
;
 Facilitating Ir-Catalyzed C--H Alkynylation with Electrochemistry: Anodic
 Oxidation-Induced Reductive Elimination
;
_journal_name_full               'ACS Catalysis'
_journal_page_first              11693
_journal_page_last               11699
_journal_paper_doi               10.1021/acscatal.0c03207
_journal_year                    2020
_chemical_formula_moiety         'C22 H28 F N O Si'
_chemical_formula_sum            'C22 H28 F N O Si'
_chemical_formula_weight         369.54
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2020-06-23
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                90
_cell_angle_beta                 97.350(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   20.9440(10)
_cell_length_b                   8.1654(4)
_cell_length_c                   12.3532(6)
_cell_measurement_reflns_used    9929
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      79.79
_cell_measurement_theta_min      4.26
_cell_volume                     2095.24(18)
_computing_cell_refinement       'SAINT v7.60A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.60A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.0
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker D8 Venture PHOTON II CPAD'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  mirrors
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0656
_diffrn_reflns_av_unetI/netI     0.0366
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            36771
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         79.863
_diffrn_reflns_theta_min         2.127
_diffrn_source                   'INCOATEC Imus micro-focus source'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.134
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.6586
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1288 before and 0.0835 after correction.
The Ratio of minimum to maximum transmission is 0.6586.
The \l/2 correction factor is Not present.
;
_exptl_crystal_density_diffrn    1.171
_exptl_crystal_description       plate
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.531
_refine_diff_density_min         -0.303
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     241
_refine_ls_number_reflns         4532
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0477
_refine_ls_R_factor_gt           0.0441
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0526P)^2^+1.4697P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1188
_refine_ls_wR_factor_ref         0.1218
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4112
_reflns_number_total             4532
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs0c03207_si_006.cif
_cod_data_source_block           135
_cod_database_code               4518084
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.945
_shelx_estimated_absorpt_t_min   0.895
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C23(H23), C20(H20), C17(H17)
2.b Aromatic/amide H refined with riding coordinates:
 C16(H16), C5(H5), C6(H6), C15(H15), C7(H7), C13(H13), C14(H14)
2.c Idealised Me refined as rotating group:
 C25(H25A,H25B,H25C), C24(H24A,H24B,H24C), C18(H18A,H18B,H18C), C19(H19A,H19B,
 H19C), C21(H21A,H21B,H21C), C22(H22A,H22B,H22C)
;
_shelx_res_checksum              68912
_shelx_hkl_checksum              86134
_olex2_submission_special_instructions 'No special instructions were received'