Potassium-Catalyzed Hydrosilylation of Activated Olefins: Evidence for a Silyl Migration Mechanism
Leich, Valeri; Spaniol, Thomas P.; Okuda, Jun; Organometallics 35 (2016) 1179–; doi:10.1021/acs.organomet.6b00160

data_4088531
_publ_section_title
;
 Potassium-Catalyzed Hydrosilylation of Activated Olefins: Evidence for a
 Silyl Migration Mechanism
;
_journal_issue                   9
_journal_name_full               Organometallics
_journal_page_first              1179
_journal_paper_doi               10.1021/acs.organomet.6b00160
_journal_volume                  35
_journal_year                    2016
_chemical_formula_moiety         'C44 H51 K O6 Si'
_chemical_formula_sum            'C44 H51 K O6 Si'
_chemical_formula_weight         743.03
_space_group_crystal_system      monoclinic
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_atom_sites_solution_hydrogens   difmap
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 116.927(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
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_cell_length_c                   19.4552(12)
_cell_measurement_reflns_used    7403
_cell_measurement_temperature    100(2)
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_cell_measurement_theta_min      2.33
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_computing_cell_refinement       'Bruker SAINT'
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_computing_molecular_graphics    'ORTEP-III (Farrugia, 1999)'
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_diffrn_ambient_temperature      100(2)
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_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-I CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  'multilayer optics'
_diffrn_radiation_source         microsource
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_diffrn_reflns_Laue_measured_fraction_full 1.000
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_diffrn_reflns_point_group_measured_fraction_full 1.000
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_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.936
_diffrn_reflns_theta_min         1.448
_exptl_absorpt_coefficient_mu    0.215
_exptl_absorpt_correction_T_max  0.7458
_exptl_absorpt_correction_T_min  0.6277
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Mulabs Platon'
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_exptl_crystal_size_mid          0.200
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_refine_ls_extinction_method     none
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_refine_ls_matrix_type           full
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_refine_ls_restrained_S_all      0.907
_refine_ls_R_factor_all          0.0592
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_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0308P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            om6b00160_si_002.cif
_cod_data_source_block           2
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4088531
_shelx_estimated_absorpt_t_min   0.952
_shelx_estimated_absorpt_t_max   0.960
_shelxl_version_number           2013-4
_shelx_res_checksum              99949
_shelx_hkl_checksum              795