Synthesis and Reactivity of Tantalum Complexes Supported by Bidentate X2and Tridentate LX2Ligands with Two Phenolates Linked to Pyridine, Thiophene, Furan, and Benzene Connectors: Mechanistic Studies of the Formation of a Tantalum Benzylidene and Insertion Chemistry for Tantalum−Carbon Bonds
Agapie, Theodor; Day, Michael W.; Bercaw, John E.; Organometallics 27 (2008) 6123–; doi:10.1021/om8002653

data_4071603
_publ_section_title
;
 Synthesis and Reactivity of Tantalum Complexes Supported by Bidentate
 X2and Tridentate LX2Ligands with Two Phenolates Linked to Pyridine,
 Thiophene, Furan, and Benzene Connectors: Mechanistic Studies of the
 Formation of a Tantalum Benzylidene and Insertion Chemistry for
 Tantalum&#x2212;Carbon Bonds
;
_journal_issue                   23
_journal_name_full               Organometallics
_journal_page_first              6123
_journal_paper_doi               10.1021/om8002653
_journal_volume                  27
_journal_year                    2008
_chemical_formula_moiety         'C36 H52 N O2 Ta'
_chemical_formula_sum            'C36 H52 N O2 Ta'
_chemical_formula_weight         711.74
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                88.7580(10)
_cell_angle_beta                 75.2440(10)
_cell_angle_gamma                70.9590(10)
_cell_formula_units_Z            2
_cell_length_a                   11.1983(3)
_cell_length_b                   11.4259(3)
_cell_length_c                   14.4511(4)
_cell_measurement_reflns_used    24819
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      46.45
_cell_measurement_theta_min      2.25
_cell_volume                     1686.39(8)
_computing_cell_refinement       'Bruker SAINT v6.45A'
_computing_data_collection       'Bruker SMART v5.630'
_computing_data_reduction        'Bruker SAINT v6.45A'
_computing_molecular_graphics    'Bruker XP v5.1'
_computing_publication_material  'Bruker XCIF v6.12'
_computing_structure_refinement  'Bruker XL v6.12'
_computing_structure_solution    'Bruker XS v6.12'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.844
_diffrn_measured_fraction_theta_max 0.844
_diffrn_measurement_device_type  'Bruker SMART 1000'
_diffrn_measurement_method       '\w scans at 7 \f settings'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0468
_diffrn_reflns_av_sigmaI/netI    0.0662
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            56267
_diffrn_reflns_theta_full        47.50
_diffrn_reflns_theta_max         47.50
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    3.289
_exptl_absorpt_correction_T_max  '0.74943, 0.885232'
_exptl_absorpt_correction_T_min  0.42862
_exptl_absorpt_correction_type   'gaussian, multi-scan'
_exptl_absorpt_process_details   'Xprep, SADABS, Bruker-AXS, Madison, WI'
_exptl_crystal_colour            'Pale yellow'
_exptl_crystal_density_diffrn    1.402
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Blade
_exptl_crystal_F_000             728
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.08
_refine_diff_density_max         3.346
_refine_diff_density_min         -2.410
_refine_diff_density_rms         0.201
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.206
_refine_ls_hydrogen_treatment    Riding
_refine_ls_matrix_type           'Full matrix'
_refine_ls_number_parameters     376
_refine_ls_number_reflns         26622
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.206
_refine_ls_R_factor_all          0.0594
_refine_ls_R_factor_gt           0.0392
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     w=1/s^2^(Fo^2^)
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_gt          0.0703
_refine_ls_wR_factor_ref         0.0759
_reflns_number_gt                21140
_reflns_number_total             26622
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om8002653_si_003.cif
_cod_data_source_block           ta17
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_refine_ls_weighting_scheme' value 'Sigma' changed to
'sigma' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_atom_sites_solution_primary' value 'Direct methods' was changed to
'direct'.

'_atom_sites_solution_secondary' value 'Difference Fourier map' was
changed to 'difmap'.

'_atom_sites_solution_hydrogens' value 'Geometric positions' was
changed to 'geom'.

Automatic conversion script
Id: cif_fix_values 6452 2018-10-05 10:23:21Z andrius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4071603