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_4071342
_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            'C37 H44 N4 Ti'
_chemical_formula_weight         592.66
_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_nv15
_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                   20.6472(16)
_cell_length_b                   12.2032(10)
_cell_length_c                   25.668(2)
_cell_measurement_temperature    100(2)
_cell_volume                     6467.4(9)
_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  0.0970
_diffrn_reflns_av_sigmaI/netI    0.0450
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            131850
_diffrn_reflns_theta_full        27.88
_diffrn_reflns_theta_max         27.88
_diffrn_reflns_theta_min         2.09
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.296
_exptl_absorpt_correction_T_max  0.7464
_exptl_absorpt_correction_T_min  0.6898
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker AXS, 2004-2007)'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.217
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             2528
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.429
_refine_diff_density_min         -0.802
_refine_diff_density_rms         0.064
_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   1.086
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     389
_refine_ls_number_reflns         7701
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.086
_refine_ls_R_factor_all          0.0828
_refine_ls_R_factor_gt           0.0545
_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^)+(0.0889P)^2^+0.3964P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1411
_refine_ls_wR_factor_ref         0.1549
_reflns_number_gt                5369
_reflns_number_total             7701
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om8001203-file002.cif
_cod_data_source_block           complex_1a
_cod_original_cell_volume        6467.3(9)
_cod_database_code               4071342
_audit_block_refno               671