Reactions of a stable silylene with halocarbons
Delawar, Mahmood; Gehrhus, Barbara; Hitchcock, Peter B.; Dalton transactions (Cambridge, England : 2003)  (2005) 2945–2953; doi:10.1039/b507462b

data_7008771
_publ_section_title
;
 Reactions of a stable silylene with halocarbons
;
_journal_issue                   17
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2945
_journal_page_last               2953
_journal_paper_doi               10.1039/b507462b
_journal_year                    2005
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C33 H54 Cl2 N4 Si2'
_chemical_formula_sum            'C33 H54 Cl2 N4 Si2'
_chemical_formula_weight         633.88
_chemical_name_common
;
[{C6H4(NCH2tBu)2}Si(Cl)Si(CH2Cl){(NCH2tBu)2C6H4}
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.2
_audit_creation_date             2003-03-31T11:20:22-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                99.309(3)
_cell_angle_beta                 70.322(3)
_cell_angle_gamma                82.774(3)
_cell_formula_units_Z            2
_cell_length_a                   10.2646(5)
_cell_length_b                   18.5123(10)
_cell_length_c                   10.6180(5)
_cell_measurement_reflns_used    24551
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      22.986
_cell_measurement_theta_min      3.705
_cell_measurement_wavelength     0.71073
_cell_volume                     1839.18(17)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.924
_diffrn_measured_fraction_theta_max 0.924
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.041
_diffrn_reflns_av_unetI/netI     0.059
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            9307
_diffrn_reflns_theta_full        23.04
_diffrn_reflns_theta_max         23.04
_diffrn_reflns_theta_min         3.94
_exptl_absorpt_coefficient_mu    0.268
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.145
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             684
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.332
_refine_diff_density_min         -0.275
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.239
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     379
_refine_ls_number_reflns         4765
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.239
_refine_ls_R_factor_all          0.0958
_refine_ls_R_factor_gt           0.0841
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+6.2443P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1954
_refine_ls_wR_factor_ref         0.2009
_reflns_number_gt                4133
_reflns_number_total             4765
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b507462b.txt
_cod_data_source_block           (3a)-mar2403
_cod_original_cell_volume        1839.18(16)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7008771