Mechanisms of Catalyst Poisoning in Palladium-Catalyzed Cyanation of Haloarenes. Remarkably Facile C-N Bond Activation in the [(Ph3P)4Pd]/[Bu4N]+CN-System
Stefan Erhardt; Vladimir V. Grushin; Alison H. Kilpatrick; Stuart A. Macgregor; William J. Marshall; D. Christopher Roe; Journal of the American Chemical Society 130 (2008) 4828–4845; doi:10.1021/ja078298h

data_4107651
_publ_section_title
;
 Mechanisms of Catalyst Poisoning in Palladium-Catalyzed Cyanation of
 Haloarenes. Remarkably Facile C-N Bond Activation in the
 [(Ph3P)4Pd]/[Bu4N]+CN-System
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              4828
_journal_page_last               4845
_journal_paper_doi               10.1021/ja078298h
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'C19 H41 N5 Pd'
_chemical_formula_weight         445.97
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 96.275(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.696(4)
_cell_length_b                   8.3139(16)
_cell_length_c                   14.012(3)
_cell_measurement_temperature    293(2)
_cell_volume                     2280.7(8)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_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      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\w 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  0.0382
_diffrn_reflns_av_sigmaI/netI    0.0280
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            29852
_diffrn_reflns_theta_full        28.32
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         1.04
_exptl_absorpt_coefficient_mu    0.825
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.299
_exptl_crystal_description       sq.prism
_exptl_crystal_F_000             944
_exptl_crystal_size_max          0.500
_exptl_crystal_size_mid          0.180
_exptl_crystal_size_min          0.180
_refine_diff_density_max         0.313
_refine_diff_density_min         -0.427
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     238
_refine_ls_number_reflns         5672
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.0297
_refine_ls_R_factor_gt           0.0235
_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^)+(0.0250P)^2^+0.5956P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0551
_refine_ls_wR_factor_ref         0.0585
_reflns_number_gt                4905
_reflns_number_total             5672
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja078298h-file001_1.cif
_cod_data_source_block           07046
_cod_database_code               4107651