Insertions into Azatitanacyclobutenes: New Insights into Three-Component Coupling Reactions Involving Imidotitanium Intermediates
Vujkovic, Nadia; Fillol, Julio Lloret; Ward, Benjamin D.; Wadepohl, Hubert; Mountford, Philip; Gade, Lutz H.; Organometallics 27 (2008) 2518–; doi:10.1021/om8001203

data_4071343
_publ_section_title
;
 Insertions into Azatitanacyclobutenes: New Insights into Three-Component
 Coupling Reactions Involving Imidotitanium Intermediates
;
_journal_issue                   11
_journal_name_full               Organometallics
_journal_page_first              2518
_journal_paper_doi               10.1021/om8001203
_journal_volume                  27
_journal_year                    2008
_chemical_formula_sum            'C38 H46 N4 Ti'
_chemical_formula_weight         606.69
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      61
_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_block_code                ga_nv16
_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                   21.266(4)
_cell_length_b                   12.788(2)
_cell_length_c                   24.435(4)
_cell_measurement_temperature    100(2)
_cell_volume                     6645(2)
_computing_cell_refinement       'SAINT (Bruker AXS, 1997-2006)'
_computing_data_collection       'SMART (Bruker AXS, 1997-2003)'
_computing_data_reduction        'SAINT (Bruker AXS, 1997-2006)'
_computing_molecular_graphics    'PLATON (Spek, 1980-2005)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'DIRDIF (Beurskens, 1999-2007)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0992
_diffrn_reflns_av_sigmaI/netI    0.0473
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            148273
_diffrn_reflns_theta_full        29.13
_diffrn_reflns_theta_max         29.13
_diffrn_reflns_theta_min         1.92
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.289
_exptl_absorpt_correction_T_max  0.7464
_exptl_absorpt_correction_T_min  0.6499
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker AXS, 2004-2007)'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.213
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             2592
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.412
_refine_diff_density_min         -0.464
_refine_diff_density_rms         0.060
_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   1.084
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     453
_refine_ls_number_reflns         8936
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.084
_refine_ls_R_factor_all          0.0877
_refine_ls_R_factor_gt           0.0509
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0716P)^2^+0.5790P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1229
_refine_ls_wR_factor_ref         0.1370
_reflns_number_gt                6032
_reflns_number_total             8936
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om8001203-file002.cif
_cod_data_source_block           complex_1b
_cod_database_code               4071343
_audit_block_refno               674