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_4087776
_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            'C51 H85 Al La2 N2 Si2'
_chemical_formula_weight         1087.18
_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
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                102.936(2)
_cell_angle_beta                 92.217(2)
_cell_angle_gamma                107.517(2)
_cell_formula_units_Z            2
_cell_length_a                   12.7087(11)
_cell_length_b                   13.3070(13)
_cell_length_c                   16.9413(14)
_cell_measurement_reflns_used    9210
_cell_measurement_temperature    109(2)
_cell_measurement_theta_max      29.04
_cell_measurement_theta_min      2.304
_cell_volume                     2645.4(4)
_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_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      109(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX DUO'
_diffrn_measurement_method       omega/phi-scans
_diffrn_radiation_monochromator  'QUAZAR optics'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0351
_diffrn_reflns_av_unetI/netI     0.0413
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            49340
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.093
_diffrn_reflns_theta_min         1.656
_diffrn_source                   'Imus-focus sealed tube'
_exptl_absorpt_coefficient_mu    1.688
_exptl_absorpt_correction_T_max  0.7458
_exptl_absorpt_correction_T_min  0.6157
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SADABS V2012/1 (Bruker AXS Inc.)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.365
_exptl_crystal_description       block
_exptl_crystal_F_000             1120
_exptl_crystal_size_max          0.220
_exptl_crystal_size_mid          0.160
_exptl_crystal_size_min          0.120
_refine_diff_density_max         2.679
_refine_diff_density_min         -1.423
_refine_diff_density_rms         0.118
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     549
_refine_ls_number_reflns         14139
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0512
_refine_ls_R_factor_gt           0.0360
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0243P)^2^+5.3865P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0716
_refine_ls_wR_factor_ref         0.0772
_reflns_Friedel_coverage         0.000
_reflns_number_gt                11421
_reflns_number_total             14139
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            om5b00589_si_002.cif
_cod_data_source_block           Compound_6-La
_cod_database_code               4087776
_shelx_estimated_absorpt_t_min   0.708
_shelx_estimated_absorpt_t_max   0.823
_shelxl_version_number           2013-3
_shelx_res_checksum              97822