Highly Isotactic and High-Molecular-Weight Poly(2-vinylpyridine) by Coordination Polymerization with Yttrium Bis(phenolate) Ether Catalysts
Xu, Tie-Qi; Yang, Guan-Wen; Lu, Xiao-Bing; ACS Catalysis 6 (2016) 4907–; doi:10.1021/acscatal.6b00881

data_4516695
_publ_section_title
;
 Highly Isotactic and High-Molecular-Weight Poly(2-vinylpyridine) by
 Coordination Polymerization with Yttrium Bis(phenolate) Ether Catalysts
;
_journal_issue                   8
_journal_name_full               'ACS Catalysis'
_journal_page_first              4907
_journal_paper_doi               10.1021/acscatal.6b00881
_journal_volume                  6
_journal_year                    2016
_chemical_formula_sum            'C62 H81 O5 Si Y'
_chemical_formula_weight         1023.27
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                101.182(2)
_cell_angle_beta                 90.368(2)
_cell_angle_gamma                96.000(2)
_cell_formula_units_Z            2
_cell_length_a                   12.0346(4)
_cell_length_b                   14.3451(5)
_cell_length_c                   16.9307(5)
_cell_measurement_reflns_used    10022
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      1.71
_cell_volume                     2850.61(16)
_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      293(2)
_diffrn_detector_area_resol_mean 0.01
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker Smart Apex CCD'
_diffrn_measurement_method       \w-2\q
_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  0.0388
_diffrn_reflns_av_sigmaI/netI    0.0697
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            18196
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.71
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.090
_exptl_absorpt_correction_T_max  0.870
_exptl_absorpt_correction_T_min  0.844
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'ABSCOR by T.Higashi 8 March, 1995'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.192
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1092
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.11
_refine_diff_density_max         1.122
_refine_diff_density_min         -0.625
_refine_diff_density_rms         0.081
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     633
_refine_ls_number_reflns         10022
_refine_ls_number_restraints     54
_refine_ls_restrained_S_all      1.080
_refine_ls_R_factor_all          0.1010
_refine_ls_R_factor_gt           0.0668
_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^)+(0.1019P)^2^+3.8777P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1697
_refine_ls_wR_factor_ref         0.1914
_reflns_number_gt                7173
_reflns_number_total             10022
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cs6b00881_si_002.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Triclinic' was changed to
'triclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4516695