Tantalum Alkyl and Silyl Complexes of the Bulky (Terphenyl)imido Ligand [2,6-(2,4,6-Me3C6H2)2C6H3N]2-([Ar*N]2-). Generation and Reactivity of [(Ar*N)(Ar*NH)Ta(H)(OSO2CF3)], Which Reversibly Transfers Hydride to an Aromatic Ring of the Arylamide Ligand
Gavenonis, John; Tilley, T. Don; Organometallics 21 (2002) 5549–; doi:10.1021/om020509y

data_4077054
_publ_section_title
;
 Tantalum Alkyl and Silyl Complexes of the Bulky (Terphenyl)imido Ligand
 [2,6-(2,4,6-Me3C6H2)2C6H3N]2-([Ar*N]2-). Generation and Reactivity of
 [(Ar*N)(Ar*NH)Ta(H)(OSO2CF3)], Which Reversibly Transfers Hydride to an
 Aromatic Ring of the Arylamide Ligand
;
_journal_issue                   25
_journal_name_full               Organometallics
_journal_page_first              5549
_journal_paper_doi               10.1021/om020509y
_journal_volume                  21
_journal_year                    2002
_chemical_formula_moiety         'C49 H52 F3 N2 O3 S Ta (C2.5 H7) '
_chemical_formula_sum            'C51.5 H59 F3 N2 O3 S Ta'
_chemical_formula_weight         1024.05
_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'
_cell_angle_alpha                90
_cell_angle_beta                 95.869(1)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.9651(4)
_cell_length_b                   15.8166(5)
_cell_length_c                   27.5663(9)
_cell_measurement_reflns_used    7126
_cell_measurement_temperature    158.2
_cell_measurement_theta_max      45.0
_cell_measurement_theta_min      3.5
_cell_volume                     4755.8(3)
_computing_cell_refinement       'Bruker SAINT v5.04'
_computing_data_collection       'Bruker SMART v5.052d'
_computing_data_reduction        'Bruker SAINT v5.04'
_computing_publication_material  teXsan
_computing_structure_refinement  teXsan
_computing_structure_solution    SIR92
_diffrn_ambient_temperature      158.2
_diffrn_measurement_device_type  'SMART CCD'
_diffrn_measurement_method       \w-scan
_diffrn_orient_matrix_UB_11      0.00000
_diffrn_orient_matrix_UB_12      0.00000
_diffrn_orient_matrix_UB_13      0.00000
_diffrn_orient_matrix_UB_21      0.00000
_diffrn_orient_matrix_UB_22      0.00000
_diffrn_orient_matrix_UB_23      0.00000
_diffrn_orient_matrix_UB_31      0.00000
_diffrn_orient_matrix_UB_32      0.00000
_diffrn_orient_matrix_UB_33      0.00000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.0579
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            21548
_diffrn_reflns_theta_max         25.65
_diffrn_reflns_theta_min         1.7
_diffrn_standards_decay_%        0.00
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.406
_exptl_absorpt_correction_T_max  0.89
_exptl_absorpt_correction_T_min  0.46
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'Blessing, 1995'
_exptl_crystal_colour            red-orange
_exptl_crystal_density_diffrn    1.430
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       tablet
_exptl_crystal_F_000             2088.00
_exptl_crystal_size_max          0.320
_exptl_crystal_size_mid          0.190
_exptl_crystal_size_min          0.050
_refine_diff_density_max         0.64
_refine_diff_density_min         -1.58
_refine_ls_extinction_coef       0.00000
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     557
_refine_ls_number_reflns         5137
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0714
_refine_ls_R_factor_gt           0.0343
_refine_ls_shift/su_max          0.0010
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_all         0.0455
_refine_ls_wR_factor_gt          0.0357
_refine_ls_wR_factor_ref         0.0357
_reflns_number_gt                5137
_reflns_number_total             8872
_reflns_threshold_expression     I>3.00sigma
_cod_data_source_file            om020509y.cif
_cod_data_source_block           Complex_11
_cod_original_cell_volume        4755.8(2)
_cod_original_sg_symbol_H-M      'P 21/n     '
_cod_original_formula_sum        'C51.50 H59 F3 N2 O3 S Ta '
_cod_database_code               4077054