(NHCMe)SiCl4: a versatile carbene transfer reagent – synthesis from silicochloroform
Böttcher, Tobias; Bassil, Bassem S.; Zhechkov, Lyuben; Heine, Thomas; Röschenthaler, Gerd-Volker; Chemical Science 4 (2013) 77–; doi:10.1039/c2sc21214e

data_1514813
_publ_section_title
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 (NHCMe)SiCl4: a versatile carbene transfer reagent -- synthesis from
 silicochloroform
;
_journal_issue                   1
_journal_name_full               'Chemical Science'
_journal_page_first              77
_journal_paper_doi               10.1039/c2sc21214e
_journal_volume                  4
_journal_year                    2013
_chemical_formula_sum            'C5 H10 Cl4 N2 Si'
_chemical_formula_weight         268.04
_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           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   12.8424(6)
_cell_length_b                   12.6500(6)
_cell_length_c                   13.2356(6)
_cell_measurement_reflns_used    6170
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      23.07
_cell_measurement_theta_min      2.73
_cell_volume                     2150.21(17)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1073
_diffrn_reflns_av_sigmaI/netI    0.0274
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            53047
_diffrn_reflns_theta_full        23.25
_diffrn_reflns_theta_max         23.25
_diffrn_reflns_theta_min         3.46
_exptl_absorpt_coefficient_mu    1.163
_exptl_absorpt_correction_T_max  0.9127
_exptl_absorpt_correction_T_min  0.6664
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.656
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1088
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.335
_refine_diff_density_min         -0.273
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     149
_refine_ls_number_reflns         1528
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0427
_refine_ls_R_factor_gt           0.0288
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0500P)^2^+1.5000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0715
_refine_ls_wR_factor_ref         0.0819
_reflns_number_gt                1247
_reflns_number_total             1528
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2sc21214e.txt
_cod_data_source_block           try7
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               1514813