Stereoselectivity Inversion: Isospecific Propylene Polymerization Catalyzed by Rigid Cyclic Bis(phenoxyaldimine) Titanium Complexes
Zhao, Xiangxiang; Chen, Zhongtao; Li, Hao; Ma, Yuguo; Macromolecules 53 (2020) 3806–3813; doi:10.1021/acs.macromol.0c00468

data_1558041
_publ_section_title
;
 Stereoselectivity Inversion: Isospecific Propylene Polymerization
 Catalyzed by Rigid Cyclic Bis(phenoxyaldimine) Titanium Complexes
;
_journal_issue                   10
_journal_name_full               Macromolecules
_journal_page_first              3806
_journal_page_last               3813
_journal_paper_doi               10.1021/acs.macromol.0c00468
_journal_volume                  53
_journal_year                    2020
_chemical_formula_sum            'C58 H36 Cl2 F8 N2 O4 Ti'
_chemical_formula_weight         1095.69
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90.2420(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   20.1165(2)
_cell_length_b                   14.3784(2)
_cell_length_c                   22.1071(3)
_cell_measurement_reflns_used    30273
_cell_measurement_temperature    179.99(10)
_cell_measurement_theta_max      29.3180
_cell_measurement_theta_min      1.7520
_cell_volume                     6394.27(14)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      179.99(10)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB AFC12 (RINC): Kappa single'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0417
_diffrn_reflns_av_unetI/netI     0.0325
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            85756
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.484
_diffrn_reflns_theta_min         1.741
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.281
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.44969
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.29a (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.138
_exptl_crystal_description       rod-like
_exptl_crystal_F_000             2232
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.325
_refine_diff_density_min         -0.391
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     682
_refine_ls_number_reflns         14655
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0468
_refine_ls_R_factor_gt           0.0363
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0504P)^2^+1.6583P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0967
_refine_ls_wR_factor_ref         0.1014
_reflns_Friedel_coverage         0.000
_reflns_number_gt                11892
_reflns_number_total             14655
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ma0c00468_si_005.cif
_cod_data_source_block           3_sq
_cod_depositor_comments
;Adding full bibliography for 1558039--1558041.cif.

 Adding full bibliography for 1558039--1558041.cif.
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               1558041
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              21884
_shelx_hkl_checksum              47337
_shelx_fab_checksum              77173