Highly Active Titanium-Based Olefin Polymerization Catalysts Bearing Bulky Aminopyridinato Ligands
Awal Noor; Winfried P. Kretschmer; Germund Glatz; Rhett Kempe; Inorganic Chemistry 50 (2011) 4598–4606; doi:10.1021/ic200318h

data_4325092
_publ_section_title
;
 Highly Active Titanium-Based Olefin Polymerization Catalysts Bearing
 Bulky Aminopyridinato Ligands
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4598
_journal_page_last               4606
_journal_paper_doi               10.1021/ic200318h
_journal_volume                  50
_journal_year                    2011
_chemical_formula_sum            'C50 H65 Cl N2 O Ti'
_chemical_formula_weight         793.39
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 96.583(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.0340(10)
_cell_length_b                   20.3610(10)
_cell_length_c                   20.4070(10)
_cell_measurement_reflns_used    39120
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      26.09
_cell_measurement_theta_min      1.42
_cell_volume                     4554.5(5)
_computing_cell_refinement       X-AREA-STOE
_computing_data_collection       X-AREA-STOE
_computing_data_reduction        X-AREA-STOE
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR-97
_diffrn_ambient_temperature      133(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  STOE-IPDSII
_diffrn_measurement_method       Omega-Scan
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.1152
_diffrn_reflns_av_sigmaI/netI    0.0856
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            47457
_diffrn_reflns_theta_full        25.76
_diffrn_reflns_theta_max         25.76
_diffrn_reflns_theta_min         1.42
_exptl_absorpt_coefficient_mu    0.283
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.157
_exptl_crystal_description       prism
_exptl_crystal_F_000             1704
_exptl_crystal_size_max          0.80
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.440
_refine_diff_density_min         -0.304
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.101
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     496
_refine_ls_number_reflns         8590
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.101
_refine_ls_R_factor_all          0.1241
_refine_ls_R_factor_gt           0.0808
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0681P)^2^+7.3407P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1858
_refine_ls_wR_factor_ref         0.2002
_reflns_number_gt                5653
_reflns_number_total             8590
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic200318h_si_002.cif
_cod_data_source_block           k248a
_cod_database_code               4325092