Mono-anionic acetophenone imine ligands: synthesis, ortho-lithiation and first examples of group (v) metal complexes
Neshat, Abdollah; Seambos, Cheryl L.; Beck, John F.; Schmidt, Joseph A. R.; Dalton Transactions  (2009) 4987–5000; doi:10.1039/b903836a

data_7001485
_publ_section_title
;
 Mono-anionic acetophenone imine ligands: synthesis, ortho-lithiation
 and first examples of group (v) metal complexes
;
_journal_issue                   25
_journal_name_full               'Dalton Transactions'
_journal_page_first              4987
_journal_page_last               5000
_journal_paper_doi               10.1039/b903836a
_journal_year                    2009
_chemical_formula_sum            'C68 H81 Cl N3 O4 Ta'
_chemical_formula_weight         1220.76
_chemical_name_systematic
;
?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 99.180(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   20.5332(8)
_cell_length_b                   14.7874(6)
_cell_length_c                   39.729(2)
_cell_measurement_reflns_used    5660
_cell_measurement_temperature    140(2)
_cell_measurement_theta_max      25.05
_cell_measurement_theta_min      2.20
_cell_volume                     11908.5(9)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      140(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'SMART CCD'
_diffrn_measurement_method       \w-scan
_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  0.0614
_diffrn_reflns_av_sigmaI/netI    0.0485
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       53
_diffrn_reflns_limit_l_min       -52
_diffrn_reflns_number            66517
_diffrn_reflns_theta_full        28.32
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         1.04
_exptl_absorpt_coefficient_mu    1.941
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.871
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.362
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             5056
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.692
_refine_diff_density_min         -1.670
_refine_diff_density_rms         0.117
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     669
_refine_ls_number_reflns         14845
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0545
_refine_ls_R_factor_gt           0.0406
_refine_ls_shift/su_max          0.009
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0425P)^2^+58.6716P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0862
_refine_ls_wR_factor_ref         0.0929
_reflns_number_gt                12324
_reflns_number_total             14845
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b903836a.txt
_cod_data_source_block           (1)2Ta(N-2,6-iPr2C6H3)Cl_(23)
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_cell_volume        11908.6(8)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7001485