Synthesis of Unsymmetrical Diolate, Oxametallacyclopentene, Amido-Alkoxide and Thiolato-Alkoxide Complexes Using Dialkyl and Diaryl Titanium Aminotroponiminate Complexes: A Route to Unsymmetrical Vicinal Diols
Dietrich P. Steinhuebel; Stephen J. Lippard; Journal of the American Chemical Society 121 (1999) 11762–11772; doi:10.1021/ja992662y

data_4116648
_publ_section_title
;
 Synthesis of Unsymmetrical Diolate, Oxametallacyclopentene,
 Amido-Alkoxide and Thiolato-Alkoxide Complexes Using Dialkyl and Diaryl
 Titanium Aminotroponiminate Complexes: A Route to Unsymmetrical Vicinal
 Diols
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11762
_journal_page_last               11772
_journal_paper_doi               10.1021/ja992662y
_journal_volume                  121
_journal_year                    1999
_chemical_formula_sum            'C34 H38 N4 O2 Ti'
_chemical_formula_weight         582.58
_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                 91.811(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.222(2)
_cell_length_b                   15.4521(16)
_cell_length_c                   11.8922(17)
_cell_measurement_temperature    188(2)
_cell_volume                     2979.5(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      188(2)
_diffrn_measured_fraction_theta_full 0.931
_diffrn_measured_fraction_theta_max 0.931
_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  0.0196
_diffrn_reflns_av_sigmaI/netI    0.0262
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            18065
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         1.82
_exptl_absorpt_coefficient_mu    0.325
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.877539
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_density_diffrn    1.299
_exptl_crystal_F_000             1232
_exptl_crystal_size_max          .45
_exptl_crystal_size_mid          .4
_exptl_crystal_size_min          .4
_refine_diff_density_max         0.295
_refine_diff_density_min         -0.509
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     522
_refine_ls_number_reflns         6876
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0446
_refine_ls_R_factor_gt           0.0349
_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^)+(0.0539P)^2^+0.7070P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0928
_refine_ls_wR_factor_ref         0.0976
_reflns_number_gt                5728
_reflns_number_total             6876
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja992662y_2.cif
_cod_data_source_block           2
_cod_original_cell_volume        2979.4(7)
_cod_database_code               4116648