Structure and Reactivity of Half-Sandwich Rh(+3) and Ir(+3) Carbene Complexes. Catalytic Metathesis of Azobenzene Derivatives.
Tindall, Daniel J.; Werlé, Christophe; Goddard, Richard; Philipps, Petra; Farès, Christophe; Fürstner, Alois; Journal of the American Chemical Society  (2018) –; doi:10.1021/jacs.7b12673

data_4127105
_publ_section_title
;
 Structure and Reactivity of Half-Sandwich Rh(+3) and Ir(+3) Carbene
 Complexes. Catalytic Metathesis of Azobenzene Derivatives.
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.7b12673
_journal_year                    2018
_chemical_compound_source        dichloromethane,pentan
_chemical_formula_moiety         'C22 H27 I2 Ir O4, C H2 Cl2'
_chemical_formula_sum            'C23 H29 Cl2 I2 Ir O4'
_chemical_formula_weight         886.36
_chemical_name_systematic
;
 pentamethylcyclopentadienyl-diiodo-1-(4-methoxycarbonylphenyl)-
 1-(ethoxycarbonyl)methylidenyl-iridium(iii) dichloromethane solvate
;
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_block_code                WEC-WA-581-01_10088_200_K
_audit_creation_date             2016-06-01
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                80.0030(10)
_cell_angle_beta                 84.2800(10)
_cell_angle_gamma                79.0600(10)
_cell_formula_units_Z            2
_cell_length_a                   7.4952(6)
_cell_length_b                   8.8229(6)
_cell_length_c                   21.5293(16)
_cell_measurement_reflns_used    9236
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      30.8215
_cell_measurement_theta_min      2.4237
_cell_volume                     1373.34(18)
_computing_cell_refinement       'SAINT software (Bruker AXS, 2004)'
_computing_data_collection       'APEX2 (Bruker AXS, 2005-2013)'
_computing_data_reduction        'SAINT software (Bruker AXS, 2004)'
_computing_molecular_graphics    'DIAMOND (Crystal Impact GbR, 1997-2014)'
_computing_structure_refinement  'SHELXL (G. M. Sheldrick, 2013)'
_computing_structure_solution    'SHELXS (G. M. Sheldrick, 2013)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 66.67
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker-AXS Kappa Mach3 APEX-II'
_diffrn_measurement_method       'CCD \f- and \w-scans'
_diffrn_radiation_monochromator  'Incoatec Helios mirrors'
_diffrn_radiation_source         1\mS
_diffrn_radiation_type           Mo-K\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0332
_diffrn_reflns_av_unetI/netI     0.0257
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            40240
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.920
_diffrn_reflns_theta_min         2.381
_exptl_absorpt_coefficient_mu    7.329
_exptl_absorpt_correction_T_max  0.84962
_exptl_absorpt_correction_T_min  0.57444
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details   'SADABS (Bruker AXS, 2012)'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    2.143
_exptl_crystal_description       prism
_exptl_crystal_F_000             832
_exptl_crystal_size_max          0.095
_exptl_crystal_size_mid          0.055
_exptl_crystal_size_min          0.030
_refine_diff_density_max         1.155
_refine_diff_density_min         -1.399
_refine_diff_density_rms         0.118
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     296
_refine_ls_number_reflns         8622
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0274
_refine_ls_R_factor_gt           0.0231
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0193P)^2^+1.9531P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0495
_refine_ls_wR_factor_ref         0.0512
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7849
_reflns_number_total             8622
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja7b12673_si_002.cif
_cod_data_source_block           14a
_cod_database_code               4127105
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              49490
_shelx_hkl_checksum              18798