Synthesis of an Isolable Bis(silylene)-Stabilized Silylone and Its Reactivity Toward Small Gaseous Molecules.
Wang, Yuwen; Karni, Miriam; Yao, Shenglai; Kaushansky, Alexander; Apeloig, Yitzhak; Driess, Matthias; Journal of the American Chemical Society 141 (2019) 12916–12927; doi:10.1021/jacs.9b06603

data_4127740
_publ_section_title
;
 Synthesis of an Isolable Bis(silylene)-Stabilized Silylone and Its
 Reactivity Toward Small Gaseous Molecules.
;
_journal_issue                   32
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12916
_journal_page_last               12927
_journal_paper_doi               10.1021/jacs.9b06603
_journal_volume                  141
_journal_year                    2019
_chemical_formula_sum            'C45 H58 Cl4 N4 O Si4'
_chemical_formula_weight         925.11
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_cell_angle_alpha                90
_cell_angle_beta                 113.466(6)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   26.7305(13)
_cell_length_b                   9.9161(4)
_cell_length_c                   22.4700(13)
_cell_measurement_reflns_used    2769
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      64.2890
_cell_measurement_theta_min      3.5720
_cell_volume                     5463.4(5)
_computing_cell_refinement       'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Single source at offset, Atlas'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.1643
_diffrn_reflns_av_unetI/netI     0.1353
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            37940
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        67.489
_diffrn_reflns_theta_max         67.489
_diffrn_reflns_theta_min         3.605
_exptl_absorpt_coefficient_mu    3.069
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.29078
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.46 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.125
_exptl_crystal_description       block
_exptl_crystal_F_000             1952
_exptl_crystal_size_max          0.100
_exptl_crystal_size_mid          0.060
_exptl_crystal_size_min          0.030
_refine_diff_density_max         0.565
_refine_diff_density_min         -0.432
_refine_diff_density_rms         0.069
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.971
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     573
_refine_ls_number_reflns         9823
_refine_ls_number_restraints     16
_refine_ls_restrained_S_all      0.987
_refine_ls_R_factor_all          0.1657
_refine_ls_R_factor_gt           0.0898
_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^)+(0.1248P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2223
_refine_ls_wR_factor_ref         0.2913
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4449
_reflns_number_total             9823
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja9b06603_si_002.cif
_cod_data_source_block           '_Compound-3'
_cod_database_code               4127740
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.749
_shelx_estimated_absorpt_t_max   0.914
_shelx_res_checksum              33712
_shelx_hkl_checksum              1847
_shelx_fab_checksum              66417