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_4069493
_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         'C24 H32 I2 Ir N5, C2 H3 N'
_chemical_formula_sum            'C26 H35 I2 Ir N6'
_chemical_formula_weight         877.60
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.3192(3)
_cell_length_b                   12.9948(3)
_cell_length_c                   24.7321(8)
_cell_measurement_reflns_used    4112
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.640
_cell_measurement_theta_min      0.998
_cell_volume                     2995.09(15)
_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_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0912
_diffrn_reflns_av_sigmaI/netI    0.1123
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            6842
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         1.65
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    6.544
_exptl_absorpt_correction_T_max  0.850
_exptl_absorpt_correction_T_min  0.540
_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            orange
_exptl_crystal_density_diffrn    1.946
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1664
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.03
_refine_diff_density_max         2.010
_refine_diff_density_min         -1.891
_refine_diff_density_rms         0.219
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.010(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.998
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     322
_refine_ls_number_reflns         6842
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.998
_refine_ls_R_factor_all          0.1127
_refine_ls_R_factor_gt           0.0495
_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^)+(0.0391P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0845
_refine_ls_wR_factor_ref         0.1023
_reflns_number_gt                4257
_reflns_number_total             6842
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om900226c_si_002.cif
_cod_data_source_block           Complex8
_cod_original_cell_volume        2995.06(15)
_cod_database_code               4069493