Functional Group Chemistry at the Group 4 Bent Metallocene Frameworks: Formation and “Metal-Free” Catalytic Hydrogenation of Bis(imino-Cp)zirconium Complexes
Axenov, Kirill V.; Kehr, Gerald; Fröhlich, Roland; Erker, Gerhard; Organometallics 28 (2009) 5148–; doi:10.1021/om9004093

data_4069784
_publ_section_title
;
 Functional Group Chemistry at the Group 4 Bent Metallocene Frameworks:
 Formation and &#x201C;Metal-Free&#x201D; Catalytic Hydrogenation of
 Bis(imino-Cp)zirconium Complexes
;
_journal_issue                   17
_journal_name_full               Organometallics
_journal_page_first              5148
_journal_paper_doi               10.1021/om9004093
_journal_volume                  28
_journal_year                    2009
_chemical_formula_sum            'C36 H48 Cl2 N2 Zr'
_chemical_formula_weight         670.88
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   'at N from difmap, others geom'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 91.922(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.6288(2)
_cell_length_b                   17.8192(3)
_cell_length_c                   14.1609(2)
_cell_measurement_reflns_used    2839
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      27.88
_cell_measurement_theta_min      0.41
_cell_volume                     3437.10(9)
_computing_cell_refinement       'Collect (Nonius B.V., 1998)'
_computing_data_collection       'Collect (Nonius B.V., 1998)'
_computing_data_reduction        'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'XP (BrukerAXS, 2000)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Nonius KappaCCD APEXII'
_diffrn_measurement_method       '\w and \f 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  0.056
_diffrn_reflns_av_sigmaI/netI    0.0623
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            27684
_diffrn_reflns_theta_full        27.86
_diffrn_reflns_theta_max         27.86
_diffrn_reflns_theta_min         1.84
_exptl_absorpt_coefficient_mu    0.501
_exptl_absorpt_correction_T_max  0.9516
_exptl_absorpt_correction_T_min  0.8440
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Denzo (Otwinowski, BOrek, Majewski & Minor, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.296
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1408
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.436
_refine_diff_density_min         -0.621
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     416
_refine_ls_number_reflns         8167
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0822
_refine_ls_R_factor_gt           0.0438
_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^)+(0.0406P)^2^+0.5537P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0866
_refine_ls_wR_factor_ref         0.0990
_reflns_number_gt                5519
_reflns_number_total             8167
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om9004093_si_002.cif
_cod_data_source_block           erk4652
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               4069784