Nickel Complexes of a Pincer NN2 Ligand: Multiple Carbon-Chloride Activation of CH2Cl2 and CHCl3 Leads to Selective Carbon-Carbon Bond Formation
Zsolt Csok; Oleg Vechorkin; Seth B. Harkins; Rosario Scopelliti; Xile Hu; Journal of the American Chemical Society 130 (2008) 8156–8157; doi:10.1021/ja8025938

data_4107967
_publ_section_title
;
 Nickel Complexes of a Pincer NN2 Ligand: Multiple Carbon-Chloride
 Activation of CH2Cl2 and CHCl3 Leads to Selective Carbon-Carbon Bond
 Formation
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8156
_journal_page_last               8157
_journal_paper_doi               10.1021/ja8025938
_journal_volume                  130
_journal_year                    2008
_chemical_formula_moiety         'C32 H40 Li2 N6'
_chemical_formula_sum            'C32 H40 Li2 N6'
_chemical_formula_weight         522.58
_space_group_IT_number           56
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ab 2ac'
_symmetry_space_group_name_H-M   'P c c n'
_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                   9.3505(3)
_cell_length_b                   16.1767(6)
_cell_length_c                   19.9603(7)
_cell_measurement_reflns_used    11450
_cell_measurement_temperature    140(2)
_cell_measurement_theta_max      27.3778
_cell_measurement_theta_min      2.7047
_cell_volume                     3019.20(18)
_computing_cell_refinement
; 
CrysAlis RED, Oxford Diffraction Ltd., 
Version 1.171.32.5 (release 08-05-2007 CrysAlis171 .NET) 
(compiled May  8 2007,13:10:02) 
;
_computing_data_collection
; 
CrysAlis CCD, Oxford Diffraction Ltd., 
Version 1.171.32.5 (release 08-05-2007 CrysAlis171 .NET) 
(compiled May  8 2007,13:10:02) 
;
_computing_data_reduction
; 
CrysAlis RED, Oxford Diffraction Ltd., 
Version 1.171.32.5 (release 08-05-2007 CrysAlis171 .NET) 
(compiled May  8 2007,13:10:02) 
;
_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_detector_area_resol_mean 8.2812
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Oxford Diffraction, KM4/Sapphire CCD'
_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  0.0513
_diffrn_reflns_av_sigmaI/netI    0.0217
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            21646
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         2.72
_exptl_absorpt_coefficient_mu    0.068
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.57702
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlis RED, Oxford Diffraction Ltd., 
Version 1.171.32.5 (release 08-05-2007 CrysAlis171 .NET) 
(compiled May  8 2007,13:10:02) 
empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.150
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             1120
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.278
_refine_diff_density_min         -0.185
_refine_diff_density_rms         0.043
_refine_ls_extinction_coef       0.0010(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.128
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     262
_refine_ls_number_reflns         3081
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.128
_refine_ls_R_factor_all          0.0713
_refine_ls_R_factor_gt           0.0476
_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^)+(0.0407P)^2^+1.9992P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1062
_refine_ls_wR_factor_ref         0.1251
_reflns_number_gt                2352
_reflns_number_total             3081
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja8025938-file004.cif
_cod_data_source_block           cz1005
_cod_database_code               4107967