Substitution Effects in Highly Syndioselective Styrene Polymerization Catalysts Based on Single-Component Allyl ansa-Lanthanidocenes: An Experimental and Theoretical Study
Laur, Eva; Louyriac, Elisa; Dorcet, Vincent; Welle, Alexandre; Vantomme, Aurélien; Miserque, Olivier; Brusson, Jean-Michel; Maron, Laurent; Carpentier, Jean-François; Kirillov, Evgueni; Macromolecules 50 (2017) 6539–; doi:10.1021/acs.macromol.7b00853

data_1547545
_publ_section_title
;
 Substitution Effects in Highly Syndioselective Styrene Polymerization
 Catalysts Based on Single-Component Allyl ansa-Lanthanidocenes: An
 Experimental and Theoretical Study
;
_journal_issue                   17
_journal_name_full               Macromolecules
_journal_page_first              6539
_journal_paper_doi               10.1021/acs.macromol.7b00853
_journal_volume                  50
_journal_year                    2017
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C44 H51 Nd O Si2'
_chemical_formula_sum            'C44 H51 Nd O Si2'
_chemical_formula_weight         796.26
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_cell_angle_alpha                90
_cell_angle_beta                 97.383(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.7814(8)
_cell_length_b                   16.2167(6)
_cell_length_c                   17.8483(7)
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_cell_measurement_temperature    150
_cell_measurement_theta_max      23.02
_cell_measurement_theta_min      2.30
_cell_measurement_wavelength     0.71073
_cell_volume                     5104.0(4)
_computing_cell_refinement       'Bruker APEX2 (Bruker, 2014)'
_computing_data_collection       'Bruker APEX2 (Bruker, 2014)'
_computing_data_reduction        'Bruker APEX2 (Bruker, 2014)'
_computing_molecular_graphics
'SXGRAPH (Farrugia, 1999), Mercury (CSD, 2016)'
_computing_publication_material  'CRYSCALC (T. Roisnel, local program, 2016)'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      150
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'APEXII, Bruker-AXS'
_diffrn_measurement_method       'CCD rotation images, thin slices'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_av_R_equivalents  0.0687
_diffrn_reflns_av_unetI/netI     0.0888
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            35971
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.515
_diffrn_reflns_theta_min         2.937
_exptl_absorpt_coefficient_mu    1.089
_exptl_absorpt_correction_T_max  0.947
_exptl_absorpt_correction_T_min  0.626
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
  [Sheldrick, G.M. (2014). SADABS Bruker AXS Inc., Madison, Wisconsin, USA]
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.036
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_exptl_crystal_size_max          0.370
_exptl_crystal_size_mid          0.280
_exptl_crystal_size_min          0.050
_platon_squeeze_details
;
;
_refine_diff_density_max         1.078
_refine_diff_density_min         -0.957
_refine_diff_density_rms         0.086
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.950
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     439
_refine_ls_number_reflns         11689
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.950
_refine_ls_R_factor_all          0.0763
_refine_ls_R_factor_gt           0.0400
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0340P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0820
_refine_ls_wR_factor_ref         0.0944
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7529
_reflns_number_total             11689
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ma7b00853_si_002.cif
_cod_data_source_block           4-Nd
_cod_database_code               1547545
_shelx_res_checksum              54272
_shelx_hkl_checksum              43236
_shelx_fab_checksum              75907