Versatile Ln2(μ-NR)2-Imide Platforms for Ligand Exchange and Isoprene Polymerization
Schädle, Dorothea; Schädle, Christoph; Schneider, David; Maichle-Mössmer, Cäcilia; Anwander, Reiner; Organometallics 34 (2015) 4994–; doi:10.1021/acs.organomet.5b00589

data_4087780
_publ_section_title
;
 Versatile Ln2(\m-NR)2-Imide Platforms for Ligand Exchange and Isoprene
 Polymerization
;
_journal_issue                   20
_journal_name_full               Organometallics
_journal_page_first              4994
_journal_paper_doi               10.1021/acs.organomet.5b00589
_journal_volume                  34
_journal_year                    2015
_chemical_formula_sum            'C50 H90 La2 N8 Si4'
_chemical_formula_weight         1193.47
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                110.6840(10)
_cell_angle_beta                 100.7520(10)
_cell_angle_gamma                113.3560(10)
_cell_formula_units_Z            4
_cell_length_a                   19.9233(4)
_cell_length_b                   20.9941(4)
_cell_length_c                   22.3408(5)
_cell_measurement_reflns_used    1147
_cell_measurement_temperature    100.(2)
_cell_measurement_theta_max      24.3492
_cell_measurement_theta_min      2.0803
_cell_volume                     7423.0(3)
_computing_cell_refinement       'APEX2 v2014.1-1 (Bruker AXS)'
_computing_data_collection       'COSMO v1.61'
_computing_data_reduction        'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_molecular_graphics    'Ortep3, POV-Ray'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      100.(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX DUO'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  'QUAZAR optics '
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0674
_diffrn_reflns_av_unetI/netI     0.0574
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            202600
_diffrn_reflns_theta_full        27.88
_diffrn_reflns_theta_max         27.88
_diffrn_reflns_theta_min         1.16
_diffrn_source                   'ImuS-focus sealed tube'
_exptl_absorpt_coefficient_mu    1.230
_exptl_absorpt_correction_T_max  0.75
_exptl_absorpt_correction_T_min  0.66
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2012/1 (Bruker AXS Inc.)'
_exptl_crystal_colour            'clear colourless'
_exptl_crystal_density_diffrn    1.068
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2464
_exptl_crystal_size_max          0.244
_exptl_crystal_size_mid          0.126
_exptl_crystal_size_min          0.070
_refine_diff_density_max         1.643
_refine_diff_density_min         -1.472
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.128
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1749
_refine_ls_number_reflns         35400
_refine_ls_number_restraints     3000
_refine_ls_restrained_S_all      1.090
_refine_ls_R_factor_all          0.0859
_refine_ls_R_factor_gt           0.0543
_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^)+(0.1000P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1605
_refine_ls_wR_factor_ref         0.1787
_reflns_number_gt                25252
_reflns_number_total             35400
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            om5b00589_si_002.cif
_cod_data_source_block           Compound_9-La
_cod_database_code               4087780
_shelx_res_checksum              6051