N-Heterocyclic Carbenes with aN-2,4-Dinitrophenyl Substituent: Comparison with PPh3and IPr
Sato, Tetsuo; Hirose, Yoichi; Yoshioka, Daisuke; Oi, Shuichi; Organometallics 31 (2012) 6995–; doi:10.1021/om300814f

data_4079552
_publ_section_title
;
 N-Heterocyclic Carbenes with aN-2,4-Dinitrophenyl Substituent: Comparison
 with PPh3and IPr
;
_journal_issue                   19
_journal_name_full               Organometallics
_journal_page_first              6995
_journal_paper_doi               10.1021/om300814f
_journal_volume                  31
_journal_year                    2012
_chemical_formula_sum            'C18 H14 Au Cl N6 O9'
_chemical_formula_weight         690.77
_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                 113.251(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.772(2)
_cell_length_b                   9.0891(15)
_cell_length_c                   17.990(3)
_cell_measurement_reflns_used    6617
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.87
_cell_measurement_theta_min      2.33
_cell_volume                     2219.2(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics
'Yadokari-XG 2009 (Wakita Nemoto et al., 2009)'
_computing_publication_material
'Yadokari-XG 2009 (Wakita,Nemoto et al., 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SHELXS-97
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 0.969
_diffrn_measured_fraction_theta_max 0.969
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  'Bruker Helios multilayered confocal mirror'
_diffrn_radiation_source         'Bruker TXS fine-focus rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0206
_diffrn_reflns_av_sigmaI/netI    0.0258
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            11940
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.50
_exptl_absorpt_coefficient_mu    6.814
_exptl_absorpt_correction_T_max  0.9350
_exptl_absorpt_correction_T_min  0.6004
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
 SADABS (Sheldrick, 1997)
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.068
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1328
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.01
_refine_diff_density_max         1.192
_refine_diff_density_min         -1.294
_refine_diff_density_rms         0.113
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.083
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     318
_refine_ls_number_reflns         4947
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.083
_refine_ls_R_factor_all          0.0309
_refine_ls_R_factor_gt           0.0259
_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^)+(0.0145P)^2^+9.6443P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0587
_refine_ls_wR_factor_ref         0.0606
_reflns_number_gt                4275
_reflns_number_total             4947
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om300814f_si_007.cif
_cod_data_source_block           ydkr
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4079552