An Amplified Ylidic "Half-Parent" Iminosilane LSi═NH.
Hansen, Kerstin; Szilvási, Tibor; Blom, Burgert; Driess, Matthias; Journal of the American Chemical Society 136 (2014) 14207–; doi:10.1021/ja507785z

data_4122690
_publ_section_title
;
 An Amplified Ylidic &quot;Half-Parent&quot; Iminosilane LSi&#x2550;NH.
;
_journal_issue                   40
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              14207
_journal_paper_doi               10.1021/ja507785z
_journal_volume                  136
_journal_year                    2014
_chemical_formula_sum            'C29 H42 Br N3 Si'
_chemical_formula_weight         540.66
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.31.8 (release 12-01-2007 CrysAlis171 .NET)
(compiled Jan 12 2007,17:49:11)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 112.8980(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   20.2447(2)
_cell_length_b                   13.08160(10)
_cell_length_c                   23.9262(3)
_cell_measurement_reflns_used    17468
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      73.8090
_cell_measurement_theta_min      3.7520
_cell_volume                     5837.13(11)
_computing_cell_refinement
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.31.8 (release 12-01-2007 CrysAlis171 .NET)
(compiled Jan 12 2007,17:49:11)
;
_computing_data_collection
;
CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.31.8 (release 12-01-2007 CrysAlis171 .NET)
(compiled Jan 12 2007,17:49:11)
;
_computing_data_reduction
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.31.8 (release 12-01-2007 CrysAlis171 .NET)
(compiled Jan 12 2007,17:49:11)
;
_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 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'SuperNova, Single source at offset, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'SuperNova (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0188
_diffrn_reflns_av_sigmaI/netI    0.0213
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            24104
_diffrn_reflns_theta_full        67.50
_diffrn_reflns_theta_max         67.50
_diffrn_reflns_theta_min         3.78
_exptl_absorpt_coefficient_mu    2.456
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.50792
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.230
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       pale
_exptl_crystal_F_000             2288
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.539
_refine_diff_density_min         -0.697
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.100
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     643
_refine_ls_number_reflns         10512
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.102
_refine_ls_R_factor_all          0.0428
_refine_ls_R_factor_gt           0.0395
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0294P)^2^+11.1972P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0989
_refine_ls_wR_factor_ref         0.1011
_reflns_number_gt                9847
_reflns_number_total             10512
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja507785z_si_007.cif
_cod_data_source_block           c:\p21c
_cod_depositor_comments
'Adding full bibliography for 4122689--4122694.cif.'
_cod_original_cell_volume        5837.13(10)
_cod_original_sg_symbol_H-M      p21/c
_cod_database_code               4122690