Derivatization of Niobium Complexes Bearing Imido and Acetophenone Imine Ligands
Neshat, Abdollah; Schmidt, Joseph A. R.; Organometallics 29 (2010) 6219–; doi:10.1021/om100657r

data_4066817
_publ_section_title
;
 Derivatization of Niobium Complexes Bearing Imido and Acetophenone Imine
 Ligands
;
_journal_issue                   23
_journal_name_full               Organometallics
_journal_page_first              6219
_journal_paper_doi               10.1021/om100657r
_journal_volume                  29
_journal_year                    2010
_chemical_formula_moiety         'C54 H66 N3 Nb O5, C4 H10 O'
_chemical_formula_sum            'C58 H76 N3 Nb O6'
_chemical_formula_weight         1004.13
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.0131(14)
_cell_length_b                   16.1081(17)
_cell_length_c                   25.100(3)
_cell_measurement_reflns_used    6742
_cell_measurement_temperature    140(2)
_cell_measurement_theta_max      20.81
_cell_measurement_theta_min      2.53
_cell_volume                     5261.4(10)
_computing_cell_refinement       'Bruker SAINT v6.22'
_computing_data_collection       'Bruker SMART v5.625'
_computing_data_reduction        'Bruker SAINT v6.22'
_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 0.978
_diffrn_measured_fraction_theta_max 0.978
_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  0.1170
_diffrn_reflns_av_sigmaI/netI    0.1381
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            48164
_diffrn_reflns_theta_full        28.37
_diffrn_reflns_theta_max         28.37
_diffrn_reflns_theta_min         1.50
_exptl_absorpt_coefficient_mu    0.281
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.888
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.268
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2136
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.14
_refine_diff_density_max         1.044
_refine_diff_density_min         -2.480
_refine_diff_density_rms         0.217
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.28(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     614
_refine_ls_number_reflns         12683
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.1384
_refine_ls_R_factor_gt           0.0589
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0878P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1264
_refine_ls_wR_factor_ref         0.1749
_reflns_number_gt                7989
_reflns_number_total             12683
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om100657r_si_002.cif
_cod_data_source_block           15h
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               4066817