Iron, Ruthenium, and Osmium Complexes Supported by the Bis(silyl) Chelate Ligand (9,9-Dimethylxanthene-4,5-diyl)bis(dimethylsilyl): Synthesis, Characterization, and Reactivity
Minglana, Jim Josephus G.; Okazaki, Masaaki; Hasegawa, Kenji; Luh, Lung-Shiang; Yamahira, Nobukazu; Komuro, Takashi; Ogino, Hiroshi; Tobita, Hiromi; Organometallics 26 (2007) 5859–; doi:10.1021/om700720s

data_4073913
_publ_section_title
;
 Iron, Ruthenium, and Osmium Complexes Supported by the Bis(silyl) Chelate
 Ligand (9,9-Dimethylxanthene-4,5-diyl)bis(dimethylsilyl):&#x00A0;
 Synthesis, Characterization, and Reactivity
;
_journal_issue                   24
_journal_name_full               Organometallics
_journal_page_first              5859
_journal_paper_doi               10.1021/om700720s
_journal_volume                  26
_journal_year                    2007
_chemical_formula_sum            'C23 H24 O5 Os Si2'
_chemical_formula_weight         626.80
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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                 93.018(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.3110(7)
_cell_length_b                   10.0336(6)
_cell_length_c                   19.1542(19)
_cell_measurement_reflns_used    15472
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      54.96
_cell_measurement_theta_min      2.13
_cell_volume                     2362.7(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.927
_diffrn_measured_fraction_theta_max 0.927
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0282
_diffrn_reflns_av_sigmaI/netI    0.0221
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            18006
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.13
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    5.530
_exptl_absorpt_correction_T_max  0.6078
_exptl_absorpt_correction_T_min  0.2478
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   Higashi
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.762
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1224
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.152
_refine_diff_density_min         -2.494
_refine_diff_density_rms         0.252
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.182
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     286
_refine_ls_number_reflns         5019
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.182
_refine_ls_R_factor_all          0.0356
_refine_ls_R_factor_gt           0.0290
_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^)+(0.0372P)^2^+26.3198P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0830
_refine_ls_wR_factor_ref         0.1056
_reflns_number_gt                4647
_reflns_number_total             5019
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om700720s-file002.cif
_cod_data_source_block           4
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4073913