Reaction Intermediates in the Synthesis of New Hydrido, N-Heterocyclic Dicarbene Iridium(III) Pincer Complexes
Raynal, Matthieu; Pattacini, Roberto; Cazin, Catherine S. J.; Vallée, Christophe; Olivier-Bourbigou, Hélène; Braunstein, Pierre; Organometallics 28 (2009) 4028–; doi:10.1021/om900226c

data_4069494
_publ_section_title
;
 Reaction Intermediates in the Synthesis of New Hydrido, N-Heterocyclic
 Dicarbene Iridium(III) Pincer Complexes
;
_journal_issue                   14
_journal_name_full               Organometallics
_journal_page_first              4028
_journal_paper_doi               10.1021/om900226c
_journal_volume                  28
_journal_year                    2009
_chemical_formula_moiety         'C38 H54 I2 Ir2 N4'
_chemical_formula_sum            'C38 H54 I2 Ir2 N4'
_chemical_formula_weight         1205.05
_space_group_IT_number           7
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      7
_symmetry_space_group_name_Hall  'P -2yc'
_symmetry_space_group_name_H-M   'P 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                 90.031(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   13.9670(5)
_cell_length_b                   8.6217(3)
_cell_length_c                   16.4429(7)
_cell_measurement_reflns_used    6642
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26.02
_cell_measurement_theta_min      0.998
_cell_volume                     1980.04(13)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    ORTEP-3
_computing_publication_material  PLATON
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_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  0.0707
_diffrn_reflns_av_sigmaI/netI    0.0763
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            17179
_diffrn_reflns_theta_full        26.35
_diffrn_reflns_theta_max         26.35
_diffrn_reflns_theta_min         1.46
_exptl_absorpt_coefficient_mu    8.304
_exptl_absorpt_correction_T_max  0.701
_exptl_absorpt_correction_T_min  0.549
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'L. Spek, J. Appl.Cryst. 2003, 36, 7, B. Blessing, Acta Cryst, 1995, A51, 33'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.021
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1140
_exptl_crystal_size_max          0.07
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.221
_refine_diff_density_min         -2.387
_refine_diff_density_rms         0.224
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.023(35)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     419
_refine_ls_number_reflns         6703
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0633
_refine_ls_R_factor_gt           0.0414
_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^)+(0.0372P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0835
_refine_ls_wR_factor_ref         0.0914
_reflns_number_gt                5312
_reflns_number_total             6703
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om900226c_si_002.cif
_cod_data_source_block           complex11
_cod_original_sg_symbol_H-M      'P c'
_cod_database_code               4069494