High Oxidation State Rhodium and Iridium Bis(silyl)dihydride Complexes Supported by a Chelating Pyridyl-Pyrrolide Ligand
Jennifer L. McBee; Jose Escalada; T. Don Tilley; Journal of the American Chemical Society 131 (2009) 12703–12713; doi:10.1021/ja9035169

data_4104969
_publ_section_title
;
 High Oxidation State Rhodium and Iridium Bis(silyl)dihydride Complexes
 Supported by a Chelating Pyridyl-Pyrrolide Ligand
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12703
_journal_page_last               12713
_journal_paper_doi               10.1021/ja9035169
_journal_volume                  131
_journal_year                    2009
_chemical_formula_moiety         'C57 H47 Ir N2 Si2'
_chemical_formula_sum            'C57 H47 Ir N2 Si2'
_chemical_formula_weight         1008.33
_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                 93.4190(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.9089(11)
_cell_length_b                   15.3952(14)
_cell_length_c                   25.034(2)
_cell_measurement_reflns_used    8942
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      23.77
_cell_measurement_theta_min      2.27
_cell_volume                     4581.6(7)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.925
_diffrn_measured_fraction_theta_max 0.925
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       'omega and phi scans'
_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  0.0410
_diffrn_reflns_av_sigmaI/netI    0.0484
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            20840
_diffrn_reflns_theta_full        25.36
_diffrn_reflns_theta_max         25.36
_diffrn_reflns_theta_min         1.55
_exptl_absorpt_coefficient_mu    3.007
_exptl_absorpt_correction_T_max  0.7530
_exptl_absorpt_correction_T_min  0.4864
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'sadabs, 2004'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.459
_exptl_crystal_description       block
_exptl_crystal_F_000             2024
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.065
_refine_diff_density_min         -2.380
_refine_diff_density_rms         0.204
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.008
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     567
_refine_ls_number_reflns         7784
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.008
_refine_ls_R_factor_all          0.0437
_refine_ls_R_factor_gt           0.0318
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0700P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0810
_refine_ls_wR_factor_ref         0.1010
_reflns_number_gt                6541
_reflns_number_total             7784
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja9035169_si_006.cif
_cod_data_source_block           jme336
_cod_original_cell_volume        4581.5(7)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4104969