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_4087781
_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_moiety         'C62 H96 La2 N6 Si2'
_chemical_formula_sum            'C62 H96 La2 N6 Si2'
_chemical_formula_weight         1259.44
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 99.0030(9)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   12.3792(2)
_cell_length_b                   13.3141(2)
_cell_length_c                   18.8022(3)
_cell_measurement_reflns_used    945
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      33.1341
_cell_measurement_theta_min      3.0068
_cell_volume                     3060.76(8)
_computing_cell_refinement       'APEX2 v2013.6-2 (Bruker AXS)'
_computing_data_collection       'COSMO v1.61'
_computing_data_reduction        'SAINT V8.32B (Bruker AXS Inc., 2013)'
_computing_molecular_graphics    'Ortep3, POV-Ray'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-1997 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'APEX II DUO'
_diffrn_measurement_method       'omega/phi scans'
_diffrn_radiation.monochromator  'multilayer QUAZAR'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0321
_diffrn_reflns_av_unetI/netI     0.0174
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            61081
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.102
_diffrn_reflns_theta_min         1.882
_diffrn_source                   'ImuS-focus sealed tube'
_exptl_absorpt_coefficient_mu    1.458
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8721
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2012/1 (Bruker AXS Inc.)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.367
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       bar
_exptl_crystal_F_000             1304
_exptl_crystal_size_max          0.310
_exptl_crystal_size_mid          0.152
_exptl_crystal_size_min          0.104
_refine_diff_density_max         0.852
_refine_diff_density_min         -0.354
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.072
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     338
_refine_ls_number_reflns         6751
_refine_ls_number_restraints     111
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.0234
_refine_ls_R_factor_gt           0.0191
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0228P)^2^+1.9331P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0464
_refine_ls_wR_factor_ref         0.0489
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6065
_reflns_number_total             6751
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            om5b00589_si_002.cif
_cod_data_source_block           Compound_10-La
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4087781
_shelx_estimated_absorpt_t_min   0.661
_shelx_estimated_absorpt_t_max   0.863
_shelxl_version_number           2013-3
_shelx_res_checksum              50311