From Bis(silylene) and Bis(germylene) Pincer-Type Nickel(II) Complexes to Isolable Intermediates of the Nickel-Catalyzed Sonogashira Cross-Coupling Reaction
Daniel Gallego; Andreas Brück; Elisabeth Irran; Florian Meier; Martin Kaupp; Matthias Driess; John F. Hartwig; Journal of the American Chemical Society 135 (2013) 15617–15626; doi:10.1021/ja408137t

data_4120937
_publ_section_title
;
 From Bis(silylene) and Bis(germylene) Pincer-Type Nickel(II) Complexes to
 Isolable Intermediates of the Nickel-Catalyzed Sonogashira Cross-Coupling
 Reaction
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              15617
_journal_page_last               15626
_journal_paper_doi               10.1021/ja408137t
_journal_volume                  135
_journal_year                    2013
_chemical_formula_moiety
'2(C52 H70 Br Cu N4 Ni O2 Si2), 2(C7 H8), C5 H12'
_chemical_formula_sum            'C123 H168 Br2 Cu2 N8 Ni2 O4 Si4'
_chemical_formula_weight         2339.33
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_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
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.24 (release 03-12-2012 CrysAlis171 .NET)
(compiled Dec  3 2012,18:21:49)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 92.620(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   34.2351(8)
_cell_length_b                   19.3827(3)
_cell_length_c                   18.1672(3)
_cell_measurement_reflns_used    17843
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      73.7240
_cell_measurement_theta_min      3.5390
_cell_volume                     12042.6(4)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.24 (release 03-12-2012 CrysAlis171 .NET)
(compiled Dec  3 2012,18:21:49)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.24 (release 03-12-2012 CrysAlis171 .NET)
(compiled Dec  3 2012,18:21:49)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.24 (release 03-12-2012 CrysAlis171 .NET)
(compiled Dec  3 2012,18:21:49)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'SuperNova, Single source at offset), Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'SuperNova (Cu) x-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0912
_diffrn_reflns_av_sigmaI/netI    0.0670
_diffrn_reflns_limit_h_max       40
_diffrn_reflns_limit_h_min       -40
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            38807
_diffrn_reflns_theta_full        67.50
_diffrn_reflns_theta_max         67.50
_diffrn_reflns_theta_min         2.62
_exptl_absorpt_coefficient_mu    2.315
_exptl_absorpt_correction_T_max  0.8736
_exptl_absorpt_correction_T_min  0.4895
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.24 (release 03-12-2012 CrysAlis171 .NET)
(compiled Dec  3 2012,18:21:49)
Analytical numeric absorption correction using a multifaceted crystal
            model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.290
_exptl_crystal_description       plate
_exptl_crystal_F_000             4936
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.06
_refine_diff_density_max         1.472
_refine_diff_density_min         -2.038
_refine_diff_density_rms         0.129
_refine_ls_extinction_coef       0.000098(14)
_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   1.535
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     772
_refine_ls_number_reflns         10862
_refine_ls_number_restraints     532
_refine_ls_restrained_S_all      1.512
_refine_ls_R_factor_all          0.0898
_refine_ls_R_factor_gt           0.0711
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0700P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1761
_refine_ls_wR_factor_ref         0.1899
_reflns_number_gt                8479
_reflns_number_total             10862
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja408137t_si_003.cif
_cod_data_source_block           cc
_cod_database_code               4120937