C3-Symmetric Chiral Organolanthanide Complexes: Synthesis, Characterization, and Stereospecific Polymerization of α-Olefins‖
Lukešová, Lenka; Ward, Benjamin D.; Bellemin-Laponnaz, Stéphane; Wadepohl, Hubert; Gade, Lutz H.; Organometallics 26 (2007) 4652–; doi:10.1021/om700504f

data_4073638
_publ_section_title
;
 C3-Symmetric Chiral Organolanthanide Complexes:&#x00A0; Synthesis,
 Characterization, and Stereospecific Polymerization of \a-Olefins&#x2016;
;
_journal_issue                   18
_journal_name_full               Organometallics
_journal_page_first              4652
_journal_paper_doi               10.1021/om700504f
_journal_volume                  26
_journal_year                    2007
_chemical_absolute_configuration ad
_chemical_formula_sum            'C47 H72 Lu N3 O3 Si3'
_chemical_formula_weight         986.32
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.202(2)
_cell_length_b                   20.432(4)
_cell_length_c                   22.582(5)
_cell_measurement_temperature    193(2)
_cell_volume                     5168.6(18)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'PLATON (Spek, 1980-2005)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'DIRDIF (Beurskens, 1999)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       omega-scans
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1026
_diffrn_reflns_av_sigmaI/netI    0.0509
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            127115
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         1.80
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    2.018
_exptl_absorpt_correction_T_max  0.7517
_exptl_absorpt_correction_T_min  0.5386
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.267
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2048
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         1.413
_refine_diff_density_min         -0.663
_refine_diff_density_rms         0.094
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.012(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_matrix_type           full
_refine_ls_number_parameters     527
_refine_ls_number_reflns         11846
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0456
_refine_ls_R_factor_gt           0.0387
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+8.3058P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0604
_refine_ls_wR_factor_ref         0.0621
_reflns_number_gt                10922
_reflns_number_total             11846
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om700504f-file001.cif
_cod_data_source_block           complex_2a
_cod_original_cell_volume        5168.9(18)
_cod_database_code               4073638