Improvement of Regioselectivity of Alkene Hydrosilylation Catalyzed by [PNSiNP] Pincer Cobalt(III) Hydrides Using Sodium Methoxide as an Additive
Li, Qingshuang; Wei, Lanfeng; Sun, Hongjian; Fuhr, Olaf; Fenske, Dieter; Hinz, Alexander; Li, Xiaoyan; New Journal of Chemistry 49 (2025) 11646–11653; doi:10.1039/D5NJ01460C

data_7063849
_publ_section_title
;
 Improvement of Regioselectivity of Alkene Hydrosilylation Catalyzed by
 [PNSiNP] Pincer Cobalt(III) Hydrides Using Sodium Methoxide as an
 Additive
;
_journal_issue                   27
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              11646
_journal_page_last               11653
_journal_paper_doi               10.1039/D5NJ01460C
_journal_volume                  49
_journal_year                    2025
_chemical_formula_moiety         'C41 H43 Cl Co N2 P3 Si'
_chemical_formula_sum            'C41 H43 Cl Co N2 P3 Si'
_chemical_formula_weight         779.15
_space_group_crystal_system      tetragonal
_space_group_IT_number           87
_space_group_name_Hall           '-I 4'
_space_group_name_H-M_alt        'I 4/m'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2025-05-05
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6408)
;
_audit_update_record
;
2025-05-05 deposited with the CCDC.	2025-06-06 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   20.9609(9)
_cell_length_b                   20.9609(9)
_cell_length_c                   17.7989(7)
_cell_measurement_reflns_used    73253
_cell_measurement_temperature    150.15
_cell_measurement_theta_max      35.44
_cell_measurement_theta_min      1.50
_cell_volume                     7820.1(6)
_computing_data_collection       'CrysAlisPro 1.171.40.25a (Rigaku OD, 2017)'
_computing_data_reduction        'CrysAlisPro 1.171.40.25a (Rigaku OD, 2017)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      150.15
_diffrn_detector_area_resol_mean 5.81
_diffrn_detector_type            DECTRIS
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       '4-circle goniometer'
_diffrn_measurement_device_type  'Stoe StadiVari'
_diffrn_measurement_method       'rotation method'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0539
_diffrn_reflns_av_unetI/netI     0.0327
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_number            7257
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         32.492
_diffrn_reflns_theta_min         1.501
_exptl_absorpt_coefficient_mu    0.692
_exptl_absorpt_correction_T_max  0.7885
_exptl_absorpt_correction_T_min  0.5115
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
STOE X-Red32, absorption correction by Gaussian integration, analogous to
P. Coppens, "The Evaluation of Absorption and Extinction in Single-Crystal
Structure Analysis", published in: F. R. Ahmed (Editor), "Crystallographic
Computing", Munksgaard, Copenhagen (1970), 255 - 270.
Afterwards scaling of reflection intensities was performed within STOE LANA.
J. Koziskova, F. Hahn, J. Richter, J. Kozisek, "Comparison of different
absorption corrections on the model structure of tetrakis(\m~2~-acetato)-
diaqua-di-copper(II)", Acta Chimica Slovaca, vol. 9, no. 2, 2016, pp. 136 - 140.
Finally a spherical absorption correction was done within STOE LANA.
;
_exptl_crystal_colour            'yellowish orange'
_exptl_crystal_colour_modifier   yellowish
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.324
_exptl_crystal_description       cube
_exptl_crystal_F_000             3248
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.700
_refine_diff_density_min         -0.670
_refine_diff_density_rms         0.073
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     251
_refine_ls_number_reflns         7257
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0628
_refine_ls_R_factor_gt           0.0391
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0576P)^2^+1.7954P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0949
_refine_ls_wR_factor_ref         0.1027
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5400
_reflns_number_total             7257
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5nj01460c2.cif
_cod_data_source_block           sun06
_cod_original_cell_volume        7820.1(7)
_cod_database_code               7063849
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.868
_shelx_estimated_absorpt_t_min   0.857
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Others
 Fixed Sof: H24A(0.5) H24B(0.5) H24C(0.5)
3.a Secondary CH2 refined with riding coordinates:
 C10(H10A,H10B)
3.b Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C5(H5), C6(H6), C12(H12), C13(H13), C14(H14),
 C15(H15), C16(H16), C18(H18), C19(H19), C20(H20), C21(H21), C22(H22)
3.c Idealised Me refined as rotating group:
 C23(H23A,H23B,H23C), C24(H24A,H24B,H24C)
;
_shelx_res_checksum              1246
_olex2_submission_special_instructions 'No special instructions were received'