Highly Selective Olefin Trimerization Catalysis by a Borane-Activated Titanium Trimethyl Complex
Sattler, Aaron; Labinger, Jay A.; Bercaw, John E.; Organometallics 32 (2013) 6899–; doi:10.1021/om401098m

data_4082064
_publ_section_title
;
 Highly Selective Olefin Trimerization Catalysis by a Borane-Activated
 Titanium Trimethyl Complex
;
_journal_issue                   23
_journal_name_full               Organometallics
_journal_page_first              6899
_journal_paper_doi               10.1021/om401098m
_journal_volume                  32
_journal_year                    2013
_chemical_formula_sum            'C66 H74 Mg N2 O5'
_chemical_formula_weight         999.58
_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                 92.139(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.2734(9)
_cell_length_b                   15.5301(8)
_cell_length_c                   20.3199(11)
_cell_measurement_reflns_used    9194
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      34.42
_cell_measurement_theta_min      2.62
_cell_volume                     5762.5(5)
_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, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0637
_diffrn_reflns_av_sigmaI/netI    0.0337
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            217381
_diffrn_reflns_theta_full        34.47
_diffrn_reflns_theta_max         34.47
_diffrn_reflns_theta_min         1.65
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.9760
_exptl_absorpt_correction_T_min  0.9643
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.152
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2144
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_platon_squeeze_details
; 
The unit cell contains 4 diethylether molecules which have been treated as a 
diffuse contribution to the overall scattering without specific atom positions
by SQUEEZE/PLATON.
;
_refine_diff_density_max         0.556
_refine_diff_density_min         -0.221
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.074
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     626
_refine_ls_number_reflns         24334
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0614
_refine_ls_R_factor_gt           0.0479
_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^)+(0.0796P)^2^+0.6130P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1313
_refine_ls_wR_factor_ref         0.1383
_reflns_number_gt                19378
_reflns_number_total             24334
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om401098m_si_002.cif
_cod_data_source_block           f2mgs10s
_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               4082064