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_1547546
_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         'C42 H63 La O Si2'
_chemical_formula_sum            'C42 H63 La O Si2'
_chemical_formula_weight         779.01
_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                 100.695(12)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.331(3)
_cell_length_b                   10.5012(17)
_cell_length_c                   22.516(7)
_cell_measurement_reflns_used    6903
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.34
_cell_measurement_theta_min      2.54
_cell_measurement_wavelength     0.71073
_cell_volume                     4026.6(16)
_computing_cell_refinement       'APEX2 (Bruker, 2014); SAINT (Bruker, 2014)'
_computing_data_collection
'SAINT (Bruker, 2014); XPREP (Sheldrick, 2014)'
_computing_data_reduction
'SAINT (Bruker, 2014); XPREP (Sheldrick, 2014)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'CRYSCALc (T. Roisnel, local program, 2015)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 '(CMOS) PHOTON 100'
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'D8 VENTURE Bruker AXS'
_diffrn_measurement_method       'rotation images'
_diffrn_radiation_monochromator  'multilayer monochromator'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'Incoatec microfocus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1095
_diffrn_reflns_av_unetI/netI     0.0914
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            34427
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.476
_diffrn_reflns_theta_min         3.066
_exptl_absorpt_coefficient_mu    1.150
_exptl_absorpt_correction_T_max  0.944
_exptl_absorpt_correction_T_min  0.802
_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    1.285
_exptl_crystal_description       prism
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_exptl_crystal_size_max          0.120
_exptl_crystal_size_mid          0.070
_exptl_crystal_size_min          0.050
_refine_diff_density_max         0.862
_refine_diff_density_min         -1.242
_refine_diff_density_rms         0.124
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     428
_refine_ls_number_reflns         9109
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0947
_refine_ls_R_factor_gt           0.0571
_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^)+(0.0332P)^2^+6.6844P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0980
_refine_ls_wR_factor_ref         0.1076
_reflns_number_gt                6569
_reflns_number_total             9109
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ma7b00853_si_002.cif
_cod_data_source_block           2-La
_cod_depositor_comments
;
The following automatic conversions were performed:

'_space_group_crystal_system' value 'Monoclinic' changed to
'monoclinic' according to
/home/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_cell_volume        4026.7(15)
_cod_database_code               1547546