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_4104968
_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         'C53 H53 N2 Rh Si2'
_chemical_formula_sum            'C53 H53 N2 Rh Si2'
_chemical_formula_weight         877.06
_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                 95.9780(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.0745(7)
_cell_length_b                   13.8810(7)
_cell_length_c                   22.1650(10)
_cell_measurement_reflns_used    3409
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      23.225
_cell_measurement_theta_min      2.436
_cell_volume                     4612.8(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.964
_diffrn_measured_fraction_theta_max 0.964
_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     0.71070
_diffrn_reflns_av_R_equivalents  0.0453
_diffrn_reflns_av_sigmaI/netI    0.0530
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            20045
_diffrn_reflns_theta_full        24.74
_diffrn_reflns_theta_max         24.74
_diffrn_reflns_theta_min         1.73
_exptl_absorpt_coefficient_mu    0.459
_exptl_absorpt_correction_T_max  0.9470
_exptl_absorpt_correction_T_min  0.8746
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'sadabs, 2004'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.263
_exptl_crystal_description       block
_exptl_crystal_F_000             1832
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.699
_refine_diff_density_min         -1.087
_refine_diff_density_rms         0.074
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     529
_refine_ls_number_reflns         7604
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0540
_refine_ls_R_factor_gt           0.0377
_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^)+(0.0512P)^2^+3.2380P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0937
_refine_ls_wR_factor_ref         0.1050
_reflns_number_gt                5897
_reflns_number_total             7604
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja9035169_si_005.cif
_cod_data_source_block           shelxl
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4104968