Cationic Ir(III) Alkylidenes Are Key Intermediates in C-H Bond Activation and C-C Bond-Forming Reactions
Jesús Campos; Joaquín López-Serrano; Eleuterio Álvarez; Ernesto Carmona; Journal of the American Chemical Society 134 (2012) 7165–7175; doi:10.1021/ja301759m

data_4117860
_publ_section_title
;
 Cationic Ir(III) Alkylidenes Are Key Intermediates in C-H Bond Activation
 and C-C Bond-Forming Reactions
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              7165
_journal_page_last               7175
_journal_paper_doi               10.1021/ja301759m
_journal_volume                  134
_journal_year                    2012
_chemical_formula_moiety         'C27 H34 Ir P'
_chemical_formula_sum            'C27 H34 Ir P'
_chemical_formula_weight         581.71
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 99.002(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.8563(11)
_cell_length_b                   16.3032(15)
_cell_length_c                   12.3373(10)
_cell_measurement_reflns_used    8419
_cell_measurement_temperature    243(2)
_cell_measurement_theta_max      23.49
_cell_measurement_theta_min      2.54
_cell_volume                     2355.4(4)
_computing_cell_refinement       'APEX2 Software Suite (Bruker, 2007)'
_computing_data_collection       'APEX2 Software Suite (Bruker, 2007)'
_computing_data_reduction        'APEX2 Software Suite (Bruker, 2007)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL and publCIF (Westrip, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR2002 (Burla et al., 2003)'
_diffrn_ambient_temperature      243(2)
_diffrn_detector_area_resol_mean 8.26
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type
;
 Bruker-Nonius X8kappa APEX II CCD area detector
;
_diffrn_measurement_method       'phi and omega scans with narrow frames'
_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  0.0454
_diffrn_reflns_av_sigmaI/netI    0.0262
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            32473
_diffrn_reflns_theta_full        25.27
_diffrn_reflns_theta_max         25.27
_diffrn_reflns_theta_min         2.09
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    5.747
_exptl_absorpt_correction_T_max  0.5632
_exptl_absorpt_correction_T_min  0.4176
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
program SADABS, Bruker (2001).
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.640
_exptl_crystal_description       prism
_exptl_crystal_F_000             1152
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.354
_refine_diff_density_min         -1.091
_refine_diff_density_rms         0.137
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     312
_refine_ls_number_reflns         4273
_refine_ls_number_restraints     90
_refine_ls_restrained_S_all      1.089
_refine_ls_R_factor_all          0.0543
_refine_ls_R_factor_gt           0.0380
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0593P)^2^+6.6747P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0976
_refine_ls_wR_factor_ref         0.1055
_reflns_number_gt                3393
_reflns_number_total             4273
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja301759m_si_002.cif
_cod_data_source_block           5
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4117860