Reactions of Group 4 Metallocene Alkyne Complexes with Azobenzene: Formation of Diazametallacyclopropanes and N═N Bond Activation
Kaleta, Katharina; Arndt, Perdita; Beweries, Torsten; Spannenberg, Anke; Theilmann, Oliver; Rosenthal, Uwe; Organometallics 29 (2010) 2604–; doi:10.1021/om100306b

data_4066131
_publ_section_title
;
 Reactions of Group 4 Metallocene Alkyne Complexes with Azobenzene:
 Formation of Diazametallacyclopropanes and N&#x2550;N Bond Activation
;
_journal_issue                   11
_journal_name_full               Organometallics
_journal_page_first              2604
_journal_paper_doi               10.1021/om100306b
_journal_volume                  29
_journal_year                    2010
_chemical_formula_sum            'C32 H34 N2 Zr'
_chemical_formula_weight         537.83
_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            8
_cell_length_a                   9.6651(2)
_cell_length_b                   16.4871(4)
_cell_length_c                   31.7377(9)
_cell_measurement_reflns_used    3450
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      27.18
_cell_measurement_theta_min      2.42
_cell_volume                     5057.4(2)
_computing_cell_refinement       X-AREA
_computing_data_collection       'X-AREA (Stoe & Cie, 2005)'
_computing_data_reduction        X-AREA
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'STOE IPDS II'
_diffrn_measurement_method       \w
_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  0.0457
_diffrn_reflns_av_sigmaI/netI    0.0247
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            66548
_diffrn_reflns_theta_full        26.75
_diffrn_reflns_theta_max         26.75
_diffrn_reflns_theta_min         2.47
_exptl_absorpt_coefficient_mu    0.458
_exptl_absorpt_correction_T_max  0.9503
_exptl_absorpt_correction_T_min  0.8748
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'X-SHAPE and X-RED32 (Stoe & Cie, 2005)'
_exptl_crystal_colour            dark-violet
_exptl_crystal_density_diffrn    1.413
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2240
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.349
_refine_diff_density_min         -0.901
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.873
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     316
_refine_ls_number_reflns         5367
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.873
_refine_ls_R_factor_all          0.0518
_refine_ls_R_factor_gt           0.0331
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0599P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0817
_refine_ls_wR_factor_ref         0.0866
_reflns_number_gt                3628
_reflns_number_total             5367
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om100306b_si_002.cif
_cod_data_source_block           ks1038
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               4066131