Reactions of Titanocene Bis(trimethylsilyl)acetylene Complexes with Carbodiimides: An Experimental and Theoretical Study of Complexation versus C-N Bond Activation
Martin Haehnel; Martin Ruhmann; Oliver Theilmann; Subhendu Roy; Torsten Beweries; Perdita Arndt; Anke Spannenberg; Alexander Villinger; Eluvathingal D. Jemmis; Axel Schulz; Uwe Rosenthal; Journal of the American Chemical Society 134 (2012) 15979–15991; doi:10.1021/ja3070649

data_4118680
_publ_section_title
;
 Reactions of Titanocene Bis(trimethylsilyl)acetylene Complexes with
 Carbodiimides: An Experimental and Theoretical Study of Complexation
 versus C-N Bond Activation
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              15979
_journal_page_last               15991
_journal_paper_doi               10.1021/ja3070649
_journal_volume                  134
_journal_year                    2012
_chemical_formula_sum            'C47 H60 N2 Ti'
_chemical_formula_weight         700.87
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 101.0670(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.6940(3)
_cell_length_b                   30.0123(6)
_cell_length_c                   9.9271(2)
_cell_measurement_reflns_used    9966
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      66.26
_cell_measurement_theta_min      2.95
_cell_volume                     4004.05(14)
_computing_cell_refinement       'SAINT (Bruker, 2009)'
_computing_data_collection       'APEX2 (Bruker, 2012)'
_computing_data_reduction        SAINT
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Bruker Kappa APEX II Duo'
_diffrn_measurement_method       'omega + phi scans'
_diffrn_radiation_monochromator  multilayer
_diffrn_radiation_source         microfocus
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0531
_diffrn_reflns_av_sigmaI/netI    0.0420
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       34
_diffrn_reflns_limit_k_min       -34
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            31394
_diffrn_reflns_theta_full        63.67
_diffrn_reflns_theta_max         63.67
_diffrn_reflns_theta_min         2.94
_exptl_absorpt_coefficient_mu    2.049
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.39
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2008)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.163
_exptl_crystal_description       needle
_exptl_crystal_F_000             1512
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.424
_refine_diff_density_min         -0.511
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     468
_refine_ls_number_reflns         6520
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0555
_refine_ls_R_factor_gt           0.0444
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0665P)^2^+2.2756P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1146
_refine_ls_wR_factor_ref         0.1218
_reflns_number_gt                5480
_reflns_number_total             6520
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja3070649_si_005.cif
_cod_data_source_block           ax0188
_cod_database_code               4118680