Mode of Activation of Cobalt(II) Amides for Catalytic Hydrosilylation of Alkenes with Tertiary Silanes.
Liu, Yang; Deng, Liang; Journal of the American Chemical Society 139 (2017) 1798–1801; doi:10.1021/jacs.6b12938

data_4125713
_publ_section_title
;
 Mode of Activation of Cobalt(II) Amides for Catalytic Hydrosilylation of
 Alkenes with Tertiary Silanes.
;
_journal_issue                   5
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              1798
_journal_page_last               1801
_journal_paper_doi               10.1021/jacs.6b12938
_journal_volume                  139
_journal_year                    2017
_chemical_formula_moiety         'C25 H52 Co N4 Si4'
_chemical_formula_sum            'C25 H52 Co N4 Si4'
_chemical_formula_weight         579.99
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2016-02-24
_audit_creation_method
;
Olex2 1.2
(compiled 2014.07.22 svn.r2960 for OlexSys, GUI svn.r4862)
;
_cell_angle_alpha                81.077(2)
_cell_angle_beta                 86.856(2)
_cell_angle_gamma                66.166(2)
_cell_formula_units_Z            2
_cell_length_a                   8.8549(9)
_cell_length_b                   10.1984(10)
_cell_length_c                   20.531(2)
_cell_measurement_reflns_used    4913
_cell_measurement_temperature    130
_cell_measurement_theta_max      30.026
_cell_measurement_theta_min      2.288
_cell_volume                     1675.4(3)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      130
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0228
_diffrn_reflns_av_unetI/netI     0.0470
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.984
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            17064
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.984
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         30.669
_diffrn_reflns_theta_min         2.008
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.674
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.6704
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.0395 before and 0.0319 after correction.
The Ratio of minimum to maximum transmission is 0.8985.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.150
_exptl_crystal_description       block
_exptl_crystal_F_000             626
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.389
_refine_diff_density_min         -0.381
_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     323
_refine_ls_number_reflns         10216
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0566
_refine_ls_R_factor_gt           0.0368
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0430P)^2^+0.0529P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0847
_refine_ls_wR_factor_ref         0.0926
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7777
_reflns_number_total             10216
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja6b12938_si_002.cif
_cod_data_source_block           5
_cod_database_code               4125713
_shelxl_version_number           2014-3
_shelx_estimated_absorpt_t_max   0.906
_shelx_estimated_absorpt_t_min   0.866
_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 Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C7(H7), C9(H9)
2.b Idealised Me refined as rotating group:
 C4(H4A,H4B,H4C), C11(H11A,H11B,H11C), C12(H12A,H12B,H12C), C13(H13A,H13B,
 H13C), C14(H14A,H14B,H14C), C15(H15A,H15B,H15C), C16(H16A,H16B,H16C), C17(H17A,
 H17B,H17C), C18(H18A,H18B,H18C), C19(H19A,H19B,H19C), C20(H20A,H20B,H20C),
 C21(H21A,H21B,H21C), C22(H22A,H22B,H22C), C23(H23A,H23B,H23C), C24(H24A,H24B,
 H24C), C25(H25A,H25B,H25C)
;
_shelx_res_checksum              6960
_shelx_hkl_checksum              63764
_olex2_submission_special_instructions 'No special instructions were received'