Synthesis of Methylidene Complexes that Contain a 2,6-Dimesitylphenylimido Ligand and Ethenolysis of 2,3-Dicarbomethoxynorbornadiene
Gerber, Laura C. H.; Schrock, Richard R.; Organometallics 32 (2013) 5573–; doi:10.1021/om400844k

data_4081694
_publ_section_title
;
 Synthesis of Methylidene Complexes that Contain a
 2,6-Dimesitylphenylimido Ligand and Ethenolysis of
 2,3-Dicarbomethoxynorbornadiene
;
_journal_issue                   19
_journal_name_full               Organometallics
_journal_page_first              5573
_journal_paper_doi               10.1021/om400844k
_journal_volume                  32
_journal_year                    2013
_chemical_formula_sum            'C51 H54 N2 O Si W'
_chemical_formula_weight         922.90
_chemical_name_systematic
; 
 ? 
;
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 91.756(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   19.6235(16)
_cell_length_b                   22.9245(19)
_cell_length_c                   19.7261(17)
_cell_measurement_reflns_used    9641
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.54
_cell_measurement_theta_min      2.25
_cell_volume                     8869.8(13)
_computing_cell_refinement       'SAINT 7.46A (Bruker-AXS, 2010)'
_computing_data_collection       'APEX2 v2010.7.0 (Bruker-AXS, 2010)'
_computing_data_reduction        'SAINT 7.46A (Bruker-AXS, 2010)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker Smart APEX2 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  0.0396
_diffrn_reflns_av_sigmaI/netI    0.0173
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -32
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            385055
_diffrn_reflns_theta_full        30.51
_diffrn_reflns_theta_max         30.51
_diffrn_reflns_theta_min         1.36
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.670
_exptl_absorpt_correction_T_max  0.5014
_exptl_absorpt_correction_T_min  0.4551
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2009)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.382
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3760
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         1.081
_refine_diff_density_min         -0.737
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1025
_refine_ls_number_reflns         27055
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0421
_refine_ls_R_factor_gt           0.0220
_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^)+(0.0196P)^2^+8.8745P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0494
_refine_ls_wR_factor_ref         0.0596
_reflns_number_gt                18758
_reflns_number_total             27055
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om400844k_si_002.cif
_cod_data_source_block           12191
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4081694