Regio- and Stereoselective Hydrosilylation of Unsymmetrical Alkynes Catalyzed by a Well-Defined, Low-Valent Cobalt Catalyst.
Rivera-Hernández, Alejandro; Fallon, Brendan J.; Ventre, Sandrine; Simon, Cédric; Tremblay, Marie-Hélène; Gontard, Geoffrey; Derat, Etienne; Amatore, Muriel; Aubert, Corinne; Petit, Marc; Organic letters 18 (2016) 4242–4245; doi:10.1021/acs.orglett.6b01987

data_1555672
_publ_section_title
;
 Regio- and Stereoselective Hydrosilylation of Unsymmetrical Alkynes
 Catalyzed by a Well-Defined, Low-Valent Cobalt Catalyst.
;
_journal_issue                   17
_journal_name_full               'Organic letters'
_journal_page_first              4242
_journal_page_last               4245
_journal_paper_doi               10.1021/acs.orglett.6b01987
_journal_volume                  18
_journal_year                    2016
_chemical_formula_moiety         'C34 H34 O Si2'
_chemical_formula_sum            'C34 H34 O Si2'
_chemical_formula_weight         514.79
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                95.596(2)
_cell_angle_beta                 105.569(2)
_cell_angle_gamma                90.183(2)
_cell_formula_units_Z            2
_cell_length_a                   9.1784(2)
_cell_length_b                   9.8895(2)
_cell_length_c                   17.0426(4)
_cell_measurement_reflns_used    9897
_cell_measurement_temperature    200(1)
_cell_measurement_theta_max      30.54
_cell_measurement_theta_min      2.31
_cell_volume                     1482.39(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'SXGRAPH (Farrugia, 2012)'
_computing_publication_material  'WinGX publication routines (Farrugia, 2012)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT-2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      200(1)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'curved graphite'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0137
_diffrn_reflns_av_unetI/netI     0.0115
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            35861
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.587
_diffrn_reflns_theta_min         1.247
_exptl_absorpt_coefficient_mu    0.144
_exptl_absorpt_correction_T_max  0.746
_exptl_absorpt_correction_T_min  0.721
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
R.H. Blessing, Acta Cryst. (1995), A51, 33-38
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.153
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             548
_exptl_crystal_size_max          0.8
_exptl_crystal_size_mid          0.5
_exptl_crystal_size_min          0.4
_refine_diff_density_max         0.427
_refine_diff_density_min         -0.225
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     334
_refine_ls_number_reflns         9053
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0494
_refine_ls_R_factor_gt           0.0437
_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^)+(0.0496P)^2^+0.6871P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1090
_refine_ls_wR_factor_ref         0.1154
_reflns_number_gt                8106
_reflns_number_total             9053
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ol6b01987_si_002.cif
_cod_data_source_block           Compound_3ia
_cod_database_code               1555672