Ethylene Polymerization by Sterically Crowded Palladium(II) Complexes that Contain Bis(heterocycle)methane Ligands
Burns, Christopher T.; Jordan, Richard F.; Organometallics 26 (2007) 6737–; doi:10.1021/om700768j

data_4073972
_publ_section_title
;
 Ethylene Polymerization by Sterically Crowded Palladium(II) Complexes
 that Contain Bis(heterocycle)methane Ligands
;
_journal_issue                   27
_journal_name_full               Organometallics
_journal_page_first              6737
_journal_paper_doi               10.1021/om700768j
_journal_volume                  26
_journal_year                    2007
_chemical_formula_sum            'C26 H28 Cl6 N4 Pd'
_chemical_formula_weight         715.62
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           9
_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                 93.618(19)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.873(8)
_cell_length_b                   11.336(5)
_cell_length_c                   17.234(8)
_cell_measurement_temperature    100(2)
_cell_volume                     2900(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.927
_diffrn_measured_fraction_theta_max 0.927
_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  0.0260
_diffrn_reflns_av_sigmaI/netI    0.0332
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            3436
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         2.26
_exptl_absorpt_coefficient_mu    1.217
_exptl_absorpt_correction_T_max  0.7929
_exptl_absorpt_correction_T_min  0.6754
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
absorption corrections were made based on correspondance of
equivalent intensities usingprogram SADABS (G. Sheldrick, Bruker 
Analytical X-ray Systems, Madison, WI)
;
_exptl_crystal_density_diffrn    1.639
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1440
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.778
_refine_diff_density_min         -0.385
_refine_diff_density_rms         0.077
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.01(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     338
_refine_ls_number_reflns         3103
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0291
_refine_ls_R_factor_gt           0.0286
_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^)+(0.0483P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0709
_refine_ls_wR_factor_ref         0.0713
_reflns_number_gt                3047
_reflns_number_total             3103
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om700768j-file001.cif
_cod_data_source_block           chrisy
_cod_original_sg_symbol_H-M      Cc
_cod_database_code               4073972