Unexpected Formation of Chiral Pincer CNN Nickel Complexes with β-Diketiminato Type Ligands via C-H Activation: Synthesis, Properties, Structures, and Computational Studies
Zhengliang Lu; Srinivas Abbina; Jared R. Sabin; Victor N. Nemykin; Guodong Du; Inorganic Chemistry 52 (2013) 1454–1465; doi:10.1021/ic3021904

data_4333704
_publ_contact_author
;
     Dr. Guodong Du
     Department of Chemistry
     University of North Dakota
     151 Cornell St. Stop 9024
     Grand Forks, ND 58202
     USA

     Dr. Victor N. Nemykin
     Department of Chemistry& Biochemistry
     University of Minnesota Duluth
     1039 University Drive
     Duluth, MN 55812
     USA
;
_publ_contact_author_email       'gdu@chem.und.edu, vnemykin@d.umn.edu'
_publ_contact_author_fax         '1(701)7772331, 1(218)7266729'
_publ_contact_author_phone       1(701)7772241
_publ_section_title
;
 Unexpected Formation of Chiral Pincer CNN Nickel Complexes with
 \b-Diketiminato Type Ligands via C-H Activation: Synthesis, Properties,
 Structures, and Computational Studies
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1454
_journal_page_last               1465
_journal_paper_doi               10.1021/ic3021904
_journal_volume                  52
_journal_year                    2013
_chemical_absolute_configuration ad
_chemical_formula_sum            'C23 H22 N2 O'
_chemical_formula_weight         342.43
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_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                   10.7615(11)
_cell_length_b                   10.8922(11)
_cell_length_c                   15.7770(16)
_cell_measurement_reflns_used    7621
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.32
_cell_measurement_theta_min      2.27
_cell_volume                     1849.3(3)
_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      173(2)
_diffrn_measured_fraction_theta_full 0.958
_diffrn_measured_fraction_theta_max 0.958
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0249
_diffrn_reflns_av_sigmaI/netI    0.0213
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            15880
_diffrn_reflns_theta_full        28.22
_diffrn_reflns_theta_max         28.22
_diffrn_reflns_theta_min         2.29
_exptl_absorpt_coefficient_mu    0.076
_exptl_absorpt_correction_T_max  0.9813
_exptl_absorpt_correction_T_min  0.9482
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK '
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.230
_exptl_crystal_description       chunk
_exptl_crystal_F_000             728
_exptl_crystal_size_max          0.71
_exptl_crystal_size_mid          0.65
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.234
_refine_diff_density_min         -0.205
_refine_diff_density_rms         0.037
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -1.2(13)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     237
_refine_ls_number_reflns         4274
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0407
_refine_ls_R_factor_gt           0.0381
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0634P)^2^+0.1866P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1014
_refine_ls_wR_factor_ref         0.1039
_reflns_number_gt                4021
_reflns_number_total             4274
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic3021904_si_002_7.cif
_cod_data_source_block           2d_Ed26n
_cod_database_code               4333704