Titanium Hydrazinediido Half-Sandwich Complexes: Highly Active Catalysts for the Hydrohydrazination of Terminal Alkynes at Ambient Temperature
Weitershaus, Katharina; Wadepohl, Hubert; Gade, Lutz H.; Organometallics 28 (2009) 4898–; doi:10.1021/om900641e

data_4070185
_publ_section_title
;
 Titanium Hydrazinediido Half-Sandwich Complexes: Highly Active Catalysts
 for the Hydrohydrazination of Terminal Alkynes at Ambient Temperature
;
_journal_issue                   16
_journal_name_full               Organometallics
_journal_page_first              4898
_journal_paper_doi               10.1021/om900641e
_journal_volume                  28
_journal_year                    2009
_chemical_formula_sum            'C53 H84 N8 Ti2'
_chemical_formula_weight         929.08
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   dual
_audit_block_code                ga_kw29
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 96.168(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.5635(13)
_cell_length_b                   16.591(2)
_cell_length_c                   29.458(4)
_cell_measurement_temperature    100(2)
_cell_volume                     5132.9(11)
_computing_cell_refinement       'SAINT (Bruker AXS, 1997-2008)'
_computing_data_collection       'SMART (Bruker AXS, 1997-2003)'
_computing_data_reduction        'SAINT (Bruker AXS, 1997-2008)'
_computing_molecular_graphics    'PLATON (Spek, 1980-2008)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SUPERFLIP (Palatinus, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'CCD area detector (Bruker AXS Smart 1000)'
_diffrn_measurement_method       '\f- and \w-scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0768
_diffrn_reflns_av_sigmaI/netI    0.0454
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       38
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            103733
_diffrn_reflns_theta_full        27.64
_diffrn_reflns_theta_max         27.64
_diffrn_reflns_theta_min         1.41
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.354
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6923
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements (Blessing 1995)
SADABS (Sheldrick & Bruker AXS, 2004-2008)
;
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.202
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             2008
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_platon_squeeze_details
;
;
_refine_diff_density_max         1.242
_refine_diff_density_min         -0.426
_refine_diff_density_rms         0.078
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     541
_refine_ls_number_reflns         11856
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0828
_refine_ls_R_factor_gt           0.0478
_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^)+(0.0677P)^2^+3.0893P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1222
_refine_ls_wR_factor_ref         0.1383
_reflns_number_gt                8206
_reflns_number_total             11856
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om900641e_si_001.cif
_cod_data_source_block           complex_4
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4070185
_audit_block_refno               839