N-Heterocyclic Carbene-Induced Transmethylation in Tungsten Imido Alkylidene Bistriflates: Unexpected Formation of an N-Heterocyclic Olefin Complex
Imbrich, Dominik; Frey, Wolfgang; Buchmeiser, Michael R.; Chem. Commun.  (2017) –; doi:10.1039/C7CC07471A

data_7120803
_publ_section_title
;
 N-Heterocyclic Carbene-Induced Transmethylation in Tungsten Imido
 Alkylidene Bistriflates: Unexpected Formation of an N-Heterocyclic Olefin
 Complex
;
_journal_name_full               'Chem. Commun.'
_journal_paper_doi               10.1039/C7CC07471A
_journal_year                    2017
_chemical_formula_moiety         'C22 H29 N2, C F3 O3 S'
_chemical_formula_sum            'C23 H29 F3 N2 O3 S'
_chemical_formula_weight         470.54
_chemical_name_systematic
; 
 compound 3 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2017-07-05 deposited with the CCDC.
2017-10-17 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.907(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.596(3)
_cell_length_b                   10.814(2)
_cell_length_c                   23.235(6)
_cell_measurement_reflns_used    2227
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.05
_cell_measurement_theta_min      1.75
_cell_volume                     2662.1(11)
_computing_cell_refinement       'Bruker APEXII Software Suite, 2008'
_computing_data_collection       'Bruker APEXII Software Suite, 2008'
_computing_data_reduction        'Bruker APEXII Software Suite, 2008'
_computing_molecular_graphics    'SHELXTL-plus, XP (Sheldrick, 1991)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'Bruker Kappa APEXII Duo'
_diffrn_measurement_method       'Omega + Phi Scans'
_diffrn_radiation_monochromator  Triumph
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1106
_diffrn_reflns_av_sigmaI/netI    0.1547
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            16999
_diffrn_reflns_theta_full        25.05
_diffrn_reflns_theta_max         25.05
_diffrn_reflns_theta_min         1.75
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.166
_exptl_absorpt_correction_T_max  0.7339
_exptl_absorpt_correction_T_min  0.6288
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Blessing, 1995'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.174
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plates
_exptl_crystal_F_000             992
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.04
_platon_squeeze_details
;
;
_refine_diff_density_max         0.693
_refine_diff_density_min         -0.411
_refine_diff_density_rms         0.087
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     322
_refine_ls_number_reflns         4645
_refine_ls_number_restraints     24
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.1828
_refine_ls_R_factor_gt           0.0983
_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^)+(0.0564P)^2^+7.4512P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1981
_refine_ls_wR_factor_ref         0.2239
_reflns_number_gt                2227
_reflns_number_total             4645
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c7cc07471a2.cif
_cod_data_source_block           buch99
_cod_original_cell_volume        2662.0(11)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7120803