Carbon Monoxide-Induced Dinitrogen Cleavage with Group 4 Metallocenes: Reaction Scope and Coupling to N-H Bond Formation and CO Deoxygenation
Donald J. Knobloch; Emil Lobkovsky; Paul J. Chirik; Journal of the American Chemical Society 132 (2010) 10553–10564; doi:10.1021/ja104025v

data_4102746
_publ_section_title
;
 Carbon Monoxide-Induced Dinitrogen Cleavage with Group 4 Metallocenes:
 Reaction Scope and Coupling to N-H Bond Formation and CO Deoxygenation
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10553
_journal_page_last               10564
_journal_paper_doi               10.1021/ja104025v
_journal_volume                  132
_journal_year                    2010
_chemical_formula_moiety         'C38 H52 Hf2 N2 O2'
_chemical_formula_sum            'C38 H52 Hf2 N2 O2'
_chemical_formula_weight         925.80
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_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                 95.118(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.5073(11)
_cell_length_b                   10.3194(11)
_cell_length_c                   19.4459(17)
_cell_measurement_reflns_used    5270
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.38
_cell_measurement_theta_min      2.40
_cell_volume                     1700.4(3)
_computing_cell_refinement       'Bruker SAINT+'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT+'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker X8 APEX II diffractometer'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0372
_diffrn_reflns_av_sigmaI/netI    0.0622
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            14733
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         1.05
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    6.137
_exptl_absorpt_correction_T_max  0.5789
_exptl_absorpt_correction_T_min  0.3733
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.808
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             908
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         2.405
_refine_diff_density_min         -1.466
_refine_diff_density_rms         0.157
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.547(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.999
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     398
_refine_ls_number_reflns         8308
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.999
_refine_ls_R_factor_all          0.0427
_refine_ls_R_factor_gt           0.0373
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0400P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0803
_refine_ls_wR_factor_ref         0.0833
_reflns_number_gt                7571
_reflns_number_total             8308
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja104025v_si_001_1.cif
_cod_data_source_block           djk13
_cod_database_code               4102746