Group-Transfer Reactions of Ni(II)−Ni(II) Bridging Imido Complexes. Catalytic Formation of Carbodiimides and Isocyanates via Nitrene Transfer from Organoazides
Laskowski, Carl A.; Hillhouse, Gregory L.; Organometallics 28 (2009) 6114–; doi:10.1021/om900783u

data_4070399
_publ_section_title
;
 Group-Transfer Reactions of Ni(II)&#x2212;Ni(II) Bridging Imido
 Complexes. Catalytic Formation of Carbodiimides and Isocyanates via
 Nitrene Transfer from Organoazides
;
_journal_issue                   20
_journal_name_full               Organometallics
_journal_page_first              6114
_journal_paper_doi               10.1021/om900783u
_journal_volume                  28
_journal_year                    2009
_chemical_formula_sum            'C56 H76 Cl8 N4 Ni2'
_chemical_formula_weight         1206.23
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.1110(14)
_cell_length_b                   18.7165(18)
_cell_length_c                   22.883(2)
_cell_measurement_temperature    100(2)
_cell_volume                     6043.6(10)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_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      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\w 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  0.0573
_diffrn_reflns_av_sigmaI/netI    0.0484
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            30372
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.78
_exptl_absorpt_coefficient_mu    1.015
_exptl_absorpt_correction_T_max  0.2763
_exptl_absorpt_correction_T_min  0.2272
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   'Norton et. al.'
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.326
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2528
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.675
_refine_diff_density_min         -0.404
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     324
_refine_ls_number_reflns         5315
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0486
_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^)+(0.0375P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0801
_refine_ls_wR_factor_ref         0.0827
_reflns_number_gt                4156
_reflns_number_total             5315
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om900783u_si_002.cif
_cod_data_source_block           7
_cod_original_cell_volume        6043.5(10)
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               4070399