Half-sandwich NHC-nickel(II) complexes as pre-catalysts for the fast Suzuki coupling of aryl halides: a comparative study.
Ritleng, Vincent; Oertel, Anna Magdalena; Chetcuti, Michael J.; Dalton transactions (Cambridge, England : 2003) 39 (2010) 8153–8160; doi:10.1039/c0dt00021c

data_7025841
_publ_section_title
;
 Half-sandwich NHC-nickel(II) complexes as pre-catalysts for the fast
 Suzuki coupling of aryl halides: a comparative study.
;
_journal_issue                   35
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              8153
_journal_page_last               8160
_journal_paper_doi               10.1039/c0dt00021c
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety         'C37 H51 Cl N2 Ni'
_chemical_formula_sum            'C37 H51 Cl N2 Ni'
_chemical_formula_weight         617.96
_chemical_name_systematic
;
?
;
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 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                 93.510(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.9474(8)
_cell_length_b                   31.263(3)
_cell_length_c                   10.6055(5)
_cell_measurement_reflns_used    15043
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      0.998
_cell_volume                     3953.8(5)
_computing_cell_refinement       'Denzo (Nonius B.V., 1998)'
_computing_data_collection       'Collect (Nonius B.V., 1998)'
_computing_data_reduction        'Denzo (Nonius B.V., 1998)'
_computing_molecular_graphics    'PLATON 98 (Spek, 1998)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  KappaCCD
_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  0.0856
_diffrn_reflns_av_sigmaI/netI    0.1022
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       37
_diffrn_reflns_limit_k_min       -40
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            14280
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         1.30
_exptl_absorpt_coefficient_mu    0.581
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.038
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1328
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_platon_squeeze_details
;
The residual electron density was assigned to two molecules of the
toluene solvent [320/4 = 80 e per asymmetric unit; two molecules of C7H8
would give 100e].
;
_refine_diff_density_max         0.405
_refine_diff_density_min         -0.603
_refine_diff_density_rms         0.131
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.020(17)
_refine_ls_extinction_coef       0.0043(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   0.965
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     384
_refine_ls_number_reflns         7141
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.965
_refine_ls_R_factor_all          0.0873
_refine_ls_R_factor_gt           0.0597
_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^)+(0.0861P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1377
_refine_ls_wR_factor_ref         0.1499
_reflns_number_gt                5068
_reflns_number_total             7141
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            c0dt00021c.txt
_cod_data_source_block           chet21
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      'C c'
_cod_database_code               7025841