Mechanistic Elucidation of Intramolecular Aminoalkene Hydroamination Catalyzed by a Tethered Bis(ureate) Complex: Evidence for Proton-Assisted C-N Bond Formation at Zirconium
David C. Leitch; Rachel H. Platel; Laurel L. Schafer; Journal of the American Chemical Society 133 (2011) 15453–15463; doi:10.1021/ja202448b

data_4106859
_publ_section_title
;
 Mechanistic Elucidation of Intramolecular Aminoalkene Hydroamination
 Catalyzed by a Tethered Bis(ureate) Complex: Evidence for Proton-Assisted
 C-N Bond Formation at Zirconium
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              15453
_journal_page_last               15463
_journal_paper_doi               10.1021/ja202448b
_journal_volume                  133
_journal_year                    2011
_chemical_formula_moiety         'C23 H51 Cl N6 O2 Zr'
_chemical_formula_sum            'C23 H51 Cl N6 O2 Zr'
_chemical_formula_weight         570.37
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                73.031(3)
_cell_angle_beta                 84.601(4)
_cell_angle_gamma                75.168(3)
_cell_formula_units_Z            2
_cell_length_a                   11.0282(9)
_cell_length_b                   11.7606(9)
_cell_length_c                   12.5485(11)
_cell_measurement_temperature    103(2)
_cell_measurement_theta_max      27.5605
_cell_measurement_theta_min      2.328
_cell_volume                     1504.5(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      103(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'Brucker X8 APEX II'
_diffrn_measurement_method       'area detector'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0368
_diffrn_reflns_av_sigmaI/netI    0.0350
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            24498
_diffrn_reflns_theta_full        27.58
_diffrn_reflns_theta_max         27.58
_diffrn_reflns_theta_min         1.70
_exptl_absorpt_coefficient_mu    0.477
_exptl_absorpt_correction_T_max  0.8667
_exptl_absorpt_correction_T_min  0.6147
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.197
_exptl_crystal_description       Prism
_exptl_crystal_F_000             580
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.3
_refine_diff_density_max         0.963
_refine_diff_density_min         -0.552
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     316
_refine_ls_number_reflns         6857
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.0384
_refine_ls_R_factor_gt           0.0317
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0309P)^2^+1.3477P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0794
_refine_ls_wR_factor_ref         0.0825
_reflns_number_gt                6095
_reflns_number_total             6857
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja202448b_si_002_4.cif
_cod_data_source_block           ls211_0m
_cod_original_cell_volume        1504.5(3)
_cod_database_code               4106859