Platinum(II) Complexes Featuring Chiral Diphosphines and N-Heterocyclic Carbene Ligands: Synthesis and Evaluation as Cycloisomerization Catalysts
Brissy, Delphine; Skander, Myriem; Retailleau, Pascal; Frison, Gilles; Marinetti, Angela; Organometallics 28 (2009) 140–; doi:10.1021/om800743r

data_4068350
_publ_section_title
;
 Platinum(II) Complexes Featuring Chiral Diphosphines and N-Heterocyclic
 Carbene Ligands: Synthesis and Evaluation as Cycloisomerization Catalysts
;
_journal_issue                   1
_journal_name_full               Organometallics
_journal_page_first              140
_journal_paper_doi               10.1021/om800743r
_journal_volume                  28
_journal_year                    2009
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C43 H52 I N2 P2 Pt, I'
_chemical_formula_sum            'C43 H52 I2 N2 P2 Pt'
_chemical_formula_weight         1107.70
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   difmap
_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                   12.544(3)
_cell_length_b                   14.714(3)
_cell_length_c                   23.594(5)
_cell_measurement_reflns_used    35325
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.37
_cell_measurement_theta_min      0.41
_cell_volume                     4354.8(17)
_computing_cell_refinement
'DENZO (Otwinowski & Minor, 1997); COLLECT (Nonius B.V., 1999)'
_computing_data_collection
'DENZO (Otwinowski & Minor, 1997); COLLECT (Nonius B.V., 1999)'
_computing_data_reduction        'SCALEPACK (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement
'SHELXL97 (Sheldrick, 2008); CRYSTALBUILDER (Welter, 2006)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Nonius kappa-CCD diffractometer'
_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     0.71069
_diffrn_reflns_av_R_equivalents  0.0553
_diffrn_reflns_av_sigmaI/netI    0.0797
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            24675
_diffrn_reflns_theta_full        26.36
_diffrn_reflns_theta_max         26.36
_diffrn_reflns_theta_min         1.63
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.744
_exptl_absorpt_correction_T_max  0.110
_exptl_absorpt_correction_T_min  0.055
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Scalepack (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.690
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2152
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.54
_exptl_crystal_size_min          0.47
_refine_diff_density_max         2.033
_refine_diff_density_min         -1.402
_refine_diff_density_rms         0.142
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.071(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     451
_refine_ls_number_reflns         8833
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.0657
_refine_ls_R_factor_gt           0.0498
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0405P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1111
_refine_ls_wR_factor_ref         0.1211
_reflns_number_gt                7472
_reflns_number_total             8831
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om800743r_si_001.cif
_cod_data_source_block           complex_7b
_cod_database_code               4068350