Synthesis and Reactivity of Alkyl, Hydride, and Silyl Derivatives of the (Terphenyl)imido Fragments Cp*(ArMesN)Ta (Cp* = η5-C5Me5; ArMes= 2,6-(2,4,6-Me3C6H2)2C6H3) and Cp*(ArTripN)Ta (ArTrip= 2,6-(2,4,6-iPr3C6H2)2C6H3)
Gavenonis, John; Tilley, T. Don; Organometallics 23 (2004) 31–; doi:10.1021/om030567z

data_4076229
_publ_section_title
;
 Synthesis and Reactivity of Alkyl, Hydride, and Silyl Derivatives of the
 (Terphenyl)imido Fragments Cp*(ArMesN)Ta (Cp* = \h5-C5Me5; ArMes=
 2,6-(2,4,6-Me3C6H2)2C6H3) and Cp*(ArTripN)Ta (ArTrip=
 2,6-(2,4,6-iPr3C6H2)2C6H3)
;
_journal_issue                   1
_journal_name_full               Organometallics
_journal_page_first              31
_journal_paper_doi               10.1021/om030567z
_journal_volume                  23
_journal_year                    2004
_chemical_formula_moiety         'C34 H40 Cl2 N Ta '
_chemical_formula_sum            'C34 H40 Cl2 N Ta'
_chemical_formula_weight         714.55
_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                90.000(1)
_cell_angle_beta                 99.857(1)
_cell_angle_gamma                90.000(1)
_cell_formula_units_Z            4
_cell_length_a                   13.8709(2)
_cell_length_b                   12.27320(10)
_cell_length_c                   18.7458(3)
_cell_measurement_reflns_used    6897
_cell_measurement_temperature    172.2
_cell_measurement_theta_max      45.0
_cell_measurement_theta_min      3.5
_cell_volume                     3144.18(7)
_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      172.2
_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  0.0220
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            14213
_diffrn_reflns_theta_max         25.51
_diffrn_standards_decay_%        0.00
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.683
_exptl_absorpt_correction_T_max  0.33
_exptl_absorpt_correction_T_min  0.26
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'Bruker, 1995'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.509
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1432.00
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.250
_exptl_crystal_size_min          0.250
_refine_diff_density_max         0.46
_refine_diff_density_min         -0.54
_refine_ls_extinction_coef       0.00000
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.214
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         3802
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0395
_refine_ls_R_factor_gt           0.0239
_refine_ls_shift/su_max          0.0020
_refine_ls_shift/su_mean         0.0000
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_all         0.0342
_refine_ls_wR_factor_gt          0.0313
_refine_ls_wR_factor_ref         0.0313
_reflns_number_gt                3802
_reflns_number_total             5617
_reflns_threshold_expression     I>3.00sigma
_cod_data_source_file            om030567z.cif
_cod_data_source_block           Complex_1
_cod_original_sg_symbol_H-M      'P 21/n     '
_cod_original_formula_sum        'C34 H40 Cl2 N Ta '
_cod_database_code               4076229