Enantioselective Ni-Catalyzed Electrochemical Synthesis of Biaryl Atropisomers.
Qiu, Hui; Shuai, Bin; Wang, Yun-Zhao; Liu, Dong; Chen, Yue-Gang; Gao, Pei-Sen; Ma, Hong-Xing; Chen, Song; Mei, Tian-Sheng; Journal of the American Chemical Society 142 (2020) 9872–9878; doi:10.1021/jacs.9b13117

data_4135016
_publ_section_title
;
 Enantioselective Ni-Catalyzed Electrochemical Synthesis of Biaryl
 Atropisomers.
;
_journal_issue                   22
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9872
_journal_page_last               9878
_journal_paper_doi               10.1021/jacs.9b13117
_journal_volume                  142
_journal_year                    2020
_chemical_absolute_configuration ad
_chemical_formula_sum            'C34 H31 Cl4 N4 Ni2 O2'
_chemical_formula_weight         786.85
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 108.4780(10)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   10.9629(5)
_cell_length_b                   9.5777(4)
_cell_length_c                   17.0234(8)
_cell_measurement_reflns_used    9912
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      54.451
_cell_measurement_theta_min      4.945
_cell_volume                     1695.30(13)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0340
_diffrn_reflns_av_unetI/netI     0.0351
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            26007
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.995
_diffrn_reflns_theta_min         2.523
_exptl_absorpt_coefficient_mu    1.464
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.5338
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.541
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             806
_exptl_crystal_size_max          0.160
_exptl_crystal_size_mid          0.140
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.277
_refine_diff_density_min         -0.221
_refine_diff_density_rms         0.040
_refine_ls_abs_structure_details
; 
 Flack x determined using 2634 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons and Flack (2004), Acta Cryst. A60, s61). 
;
_refine_ls_abs_structure_Flack   0.020(6)
_refine_ls_extinction_coef       0.0022(7)
_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   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     418
_refine_ls_number_reflns         6640
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0311
_refine_ls_R_factor_gt           0.0264
_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^)+(0.0249P)^2^+0.2082P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0585
_refine_ls_wR_factor_ref         0.0609
_reflns_Friedel_coverage         0.880
_reflns_Friedel_fraction_full    0.997
_reflns_Friedel_fraction_max     0.997
_reflns_number_gt                6113
_reflns_number_total             6640
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja9b13117_si_003.cif
_cod_data_source_block           mo_d8v20075_0m
_cod_depositor_comments
;Adding full bibliography for 4135012--4135016.cif.

 Adding full bibliography for 4135012--4135016.cif.
;
_cod_original_cell_volume        1695.29(13)
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4135016
_shelx_estimated_absorpt_t_min   0.800
_shelx_estimated_absorpt_t_max   0.867
_shelxl_version_number           2013-4
_shelx_res_checksum              15134
_shelx_hkl_checksum              31687