Synthesis of Imidazole-Based Functionalized Mesoionic Carbene Complexes of Palladium: Comparison of Donor Properties and Catalytic Activity toward Suzuki–Miyaura Coupling
Karthik, Vedhagiri; Gupta, Vivek; Anantharaman, Ganapathi; Organometallics 33 (2014) 6218–; doi:10.1021/om5009023

data_4084528
_publ_section_title
;
 Synthesis of Imidazole-Based Functionalized Mesoionic Carbene Complexes
 of Palladium: Comparison of Donor Properties and Catalytic Activity
 toward Suzuki--Miyaura Coupling
;
_journal_issue                   21
_journal_name_full               Organometallics
_journal_page_first              6218
_journal_paper_doi               10.1021/om5009023
_journal_volume                  33
_journal_year                    2014
_chemical_formula_moiety         'C38 H48 Cl2 Ir2 N4 S2'
_chemical_formula_sum            'C38 H48 Cl2 Ir2 N4 S2'
_chemical_formula_weight         1080.22
_chemical_name_common            'Ir- NHC COMPLEX'
_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           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 96.87(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   22.783(5)
_cell_length_b                   7.0104(14)
_cell_length_c                   23.589(5)
_cell_measurement_reflns_used    3985
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      28.23
_cell_measurement_theta_min      2.35
_cell_volume                     3740.5(14)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'ORTEP 3v2'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'CCD area detector'
_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     0.71073
_diffrn_reflns_av_R_equivalents  0.0554
_diffrn_reflns_av_sigmaI/netI    0.0578
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            9907
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.74
_exptl_absorpt_coefficient_mu    7.396
_exptl_absorpt_correction_T_max  0.5250
_exptl_absorpt_correction_T_min  0.3193
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.918
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             2096
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.10
_refine_diff_density_max         3.360
_refine_diff_density_min         -2.475
_refine_diff_density_rms         0.332
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.124
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     219
_refine_ls_number_reflns         3657
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.124
_refine_ls_R_factor_all          0.0616
_refine_ls_R_factor_gt           0.0432
_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^)+(0.0865P)^2^+47.5305P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1120
_refine_ls_wR_factor_ref         0.1523
_reflns_number_gt                2949
_reflns_number_total             3657
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om5009023_si_002.cif
_cod_data_source_block           11marb
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/saulius/struct/COD-crude-data--automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'Empirical'
changed to 'empirical' according to
/home/saulius/struct/COD-crude-data--automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2827 2014-09-09 07:05:25Z andrius 

 Adding full bibliography for 4084527--4084532.cif.
;
_cod_original_cell_volume        3740.4(13)
_cod_original_sg_symbol_Hall     '-C 2Yc '
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4084528