γ-Agostic Species as Key Intermediates in the Vinyl Addition Polymerization of Norbornene with Cationic (allyl)Pd Catalysts: Synthesis and Mechanistic Insights
Marc D. Walter; Rebecca A. Moorhouse; Stephanie A. Urbin; Peter S. White; Maurice Brookhart; Journal of the American Chemical Society 131 (2009) 9055–9069; doi:10.1021/ja9025598

data_4104612
_publ_section_title
;
 \g-Agostic Species as Key Intermediates in the Vinyl Addition
 Polymerization of Norbornene with Cationic (allyl)Pd Catalysts: Synthesis
 and Mechanistic Insights
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9055
_journal_page_last               9069
_journal_paper_doi               10.1021/ja9025598
_journal_volume                  131
_journal_year                    2009
_chemical_formula_sum            'C20 H29 F6 Pd Sb'
_chemical_formula_weight         611.58
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 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                   14.5005(4)
_cell_length_b                   9.7599(3)
_cell_length_c                   15.6128(5)
_cell_measurement_reflns_used    1106
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      57.06
_cell_measurement_theta_min      5.46
_cell_volume                     2209.58(12)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0431
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            3643
_diffrn_reflns_theta_full        66.13
_diffrn_reflns_theta_max         66.13
_diffrn_reflns_theta_min         5.46
_exptl_absorpt_coefficient_mu    16.746
_exptl_absorpt_correction_T_max  0.1879
_exptl_absorpt_correction_T_min  0.1346
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.838
_exptl_crystal_description       block
_exptl_crystal_F_000             1200
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.907
_refine_diff_density_min         -0.548
_refine_diff_density_rms         0.095
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.016(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     257
_refine_ls_number_reflns         3643
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0317
_refine_ls_R_factor_gt           0.0291
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0275P)^2^+2.3147P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0678
_refine_ls_wR_factor_ref         0.0691
_reflns_number_gt                3416
_reflns_number_total             3643
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja9025598_si_003.cif
_cod_data_source_block           c08343
_cod_database_code               4104612