Metal-ligand cooperation in C-H and H2 activation by an electron-rich PNP Ir(I) system: facile ligand dearomatization-aromatization as key steps.
Ben-Ari, Eyal; Leitus, Gregory; Shimon, Linda J W; Milstein, David; Journal of the American Chemical Society 128 (2006) 15390–15391; doi:10.1021/ja066411i

data_4101423
_publ_section_title
;
 Metal-ligand cooperation in C-H and H2 activation by an electron-rich
 PNP Ir(I) system: facile ligand dearomatization-aromatization as key
 steps.
;
_journal_issue                   48
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              15390
_journal_page_last               15391
_journal_paper_doi               10.1021/ja066411i
_journal_volume                  128
_journal_year                    2006
_chemical_formula_sum            'C29 H48 Ir N P2'
_chemical_formula_weight         664.82
_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                 103.22(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.725(2)
_cell_length_b                   13.444(3)
_cell_length_c                   20.495(4)
_cell_measurement_reflns_used    34096
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     2876.8(10)
_computing_cell_refinement       HKL
_computing_data_collection       'Collect package (Bruker Nonius)'
_computing_data_reduction        HKL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       'phi and omega scan'
_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  0.0650
_diffrn_reflns_av_sigmaI/netI    0.0317
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            5179
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         1.83
_exptl_absorpt_coefficient_mu    4.770
_exptl_absorpt_correction_T_max  0.4488
_exptl_absorpt_correction_T_min  0.1990
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.535
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1344
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.20
_refine_diff_density_max         2.789
_refine_diff_density_min         -2.486
_refine_diff_density_rms         0.190
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     310
_refine_ls_number_reflns         5179
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0463
_refine_ls_R_factor_gt           0.0388
_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^)+(0.0803P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1012
_refine_ls_wR_factor_ref         0.1065
_reflns_number_gt                4500
_reflns_number_total             5179
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja066411isi20060905_044706.cif
_cod_data_source_block           m478
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4101423