A New Type of N-Heterocyclic Silylene with Ambivalent Reactivity
Matthias Driess; Shenglai Yao; Markus Brym; Christoph van Wüllen; Dieter Lentz; Journal of the American Chemical Society 128 (2006) 9628–9629; doi:10.1021/ja062928i

data_4110773
_publ_contact_author_address
;Technische Universitaet Berlin
Institute of Chemistry: Metalorganics and Inorganic Materials
Sekretariat C2 
Strasse des 17. Juni 135
10623 Berlin
Germany
;
_publ_contact_author_email       matthias.driess@tu-berlin.de
_publ_contact_author_fax         +49(0)30-314-29732
_publ_contact_author_name        'Matthias Driess'
_publ_contact_author_phone       +49(0)30-314-29731
_publ_section_title
;
 A New Type of N-Heterocyclic Silylene with Ambivalent Reactivity
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9628
_journal_page_last               9629
_journal_paper_doi               10.1021/ja062928i
_journal_volume                  128
_journal_year                    2006
_chemical_formula_sum            'C38 H59 F3 N2 O3 S Si2'
_chemical_formula_weight         737.11
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.29.10 (release 13-04-2006 CrysAlis171 .NET)
(compiled Apr 13 2006,12:24:59)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   18.183(3)
_cell_length_b                   20.6485(17)
_cell_length_c                   21.680(3)
_cell_measurement_temperature    150(2)
_cell_volume                     8139.8(19)
_computing_cell_refinement
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.29.10 (release 13-04-2006 CrysAlis171 .NET)
(compiled Apr 13 2006,12:24:59)
;
_computing_data_collection
;
CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.29.10 (release 13-04-2006 CrysAlis171 .NET)
(compiled Apr 13 2006,12:24:59)
;
_computing_data_reduction
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.29.10 (release 13-04-2006 CrysAlis171 .NET)
(compiled Apr 13 2006,12:24:59)
;
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Oxford Diffraction Xcalibur S Sapphire'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0517
_diffrn_reflns_av_sigmaI/netI    0.0633
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            26051
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.92
_exptl_absorpt_coefficient_mu    0.188
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.203
_exptl_crystal_description       rod
_exptl_crystal_F_000             3168
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.426
_refine_diff_density_min         -0.296
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.098
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     454
_refine_ls_number_reflns         7132
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.098
_refine_ls_R_factor_all          0.1042
_refine_ls_R_factor_gt           0.0651
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0365P)^2^+7.2315P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1069
_refine_ls_wR_factor_ref         0.1171
_reflns_number_gt                5082
_reflns_number_total             7132
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja062928isi20060615_085931.cif
_cod_data_source_block           d:\daten\xrayst~1\yao\yao51\yao51
_cod_original_cell_volume        8139.7(18)
_cod_database_code               4110773