1,2-Azaborolyl-Ligated Titanium(IV) Half-Metallocenes: Synthesis, Characterization, and Catalytic Activity in Ethylene Polymerization
Chen, Yang; Fang, Xiangdong; Dan, Wenyan; Organometallics 35 (2016) 15–; doi:10.1021/acs.organomet.5b00779

data_4086359
_publ_section_title
;
 1,2-Azaborolyl-Ligated Titanium(IV) Half-Metallocenes: Synthesis,
 Characterization, and Catalytic Activity in Ethylene Polymerization
;
_journal_issue                   1
_journal_name_full               Organometallics
_journal_page_first              15
_journal_paper_doi               10.1021/acs.organomet.5b00779
_journal_volume                  35
_journal_year                    2016
_chemical_formula_sum            'C18 H28 B Cl2 N O Ti'
_chemical_formula_weight         404.02
_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                 106.201(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.9218(8)
_cell_length_b                   16.4240(14)
_cell_length_c                   14.3339(13)
_cell_measurement_temperature    296(2)
_cell_volume                     2017.0(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0394
_diffrn_reflns_av_sigmaI/netI    0.0354
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            20208
_diffrn_reflns_theta_full        28.00
_diffrn_reflns_theta_max         28.00
_diffrn_reflns_theta_min         2.89
_exptl_absorpt_coefficient_mu    0.694
_exptl_absorpt_correction_T_max  1
_exptl_absorpt_correction_T_min  0.731696
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'APEX II'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.331
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       square
_exptl_crystal_F_000             848
_exptl_crystal_size_max          0.285
_exptl_crystal_size_mid          0.240
_exptl_crystal_size_min          0.120
_refine_diff_density_max         0.782
_refine_diff_density_min         -0.429
_refine_diff_density_rms         0.069
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.265
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         4850
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.265
_refine_ls_R_factor_all          0.0638
_refine_ls_R_factor_gt           0.0535
_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^)+(0.0161P)^2^+2.2690P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1081
_refine_ls_wR_factor_ref         0.1121
_reflns_number_gt                4125
_reflns_number_total             4850
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om5b00779_si_007.cif
_cod_data_source_block           ti-1214_0m
_cod_depositor_comments
'Adding full bibliography for 4086356--4086361.cif.'
_cod_original_sg_symbol_H-M      P2_1/c
_cod_database_code               4086359