Synthesis and Reactivity of Tantalum Complexes Supported by the Pincer Ligand 2,6-Pyridinedicarboxylate. Preparation of an Unprecedented Water-Soluble Iminoacyl Complex
Conde, Ana; Fandos, Rosa; Otero, Antonio; Rodríguez, Ana; Organometallics 28 (2009) 5505–; doi:10.1021/om900643c

data_4070191
_publ_section_title
;
 Synthesis and Reactivity of Tantalum Complexes Supported by the Pincer
 Ligand 2,6-Pyridinedicarboxylate. Preparation of an Unprecedented
 Water-Soluble Iminoacyl Complex
;
_journal_issue                   18
_journal_name_full               Organometallics
_journal_page_first              5505
_journal_paper_doi               10.1021/om900643c
_journal_volume                  28
_journal_year                    2009
_chemical_formula_sum            'C24 H34 F3 N2 O9 S Ta'
_chemical_formula_weight         764.54
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 90.0490(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.9861(11)
_cell_length_b                   8.9104(8)
_cell_length_c                   24.942(2)
_cell_measurement_reflns_used    3848
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      27.188
_cell_measurement_theta_min      2.7726
_cell_volume                     2886.1(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX'
_computing_data_reduction        'Bruker SAINT, SADABS, XPREP'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.977
_diffrn_measured_fraction_theta_max 0.977
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega and phi scans'
_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  0.0820
_diffrn_reflns_av_sigmaI/netI    0.0882
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            21585
_diffrn_reflns_theta_full        28.32
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         1.77
_exptl_absorpt_coefficient_mu    3.952
_exptl_absorpt_correction_T_max  0.2153
_exptl_absorpt_correction_T_min  0.1513
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.760
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cubic
_exptl_crystal_F_000             1520
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.36
_refine_diff_density_max         3.277
_refine_diff_density_min         -1.967
_refine_diff_density_rms         0.250
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.095
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     373
_refine_ls_number_reflns         7027
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.098
_refine_ls_R_factor_all          0.0814
_refine_ls_R_factor_gt           0.0503
_refine_ls_shift/su_max          0.016
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0563P)^2^+14.9209P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1333
_refine_ls_wR_factor_ref         0.1491
_reflns_number_gt                4394
_reflns_number_total             7027
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om900643c_si_001.cif
_cod_data_source_block           5
_cod_original_cell_volume        2886.0(4)
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               4070191