Facile Reduction of a Uranyl(VI) β-Ketoiminate Complex to U(IV) Upon Oxo Silylation
Jessie L. Brown; Charles C. Mokhtarzadeh; Jeremie M. Lever; Guang Wu; Trevor W. Hayton; Inorganic Chemistry 50 (2011) 5105–5112; doi:10.1021/ic200387n

data_4325240
_publ_section_title
;
 Facile Reduction of a Uranyl(VI) \b-Ketoiminate Complex to U(IV) Upon Oxo
 Silylation
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              5105
_journal_page_last               5112
_journal_paper_doi               10.1021/ic200387n
_journal_volume                  50
_journal_year                    2011
_chemical_formula_sum            'C22 H50 I4 O6 Si2 U'
_chemical_formula_weight         1212.43
_chemical_name_systematic
; 
 Uranium(IV) monoiodotetrakis(tetrahydrofuran)bistrimethylsilyloxide Triiodide 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                89.944(6)
_cell_angle_beta                 74.313(6)
_cell_angle_gamma                89.970(6)
_cell_formula_units_Z            2
_cell_length_a                   9.519(4)
_cell_length_b                   12.725(5)
_cell_length_c                   16.355(6)
_cell_measurement_temperature    150(2)
_cell_volume                     1907.3(13)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.978
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'ccd area detector'
_diffrn_measurement_method       '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  0.0803
_diffrn_reflns_av_sigmaI/netI    0.1023
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            16397
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         1.29
_exptl_absorpt_coefficient_mu    7.583
_exptl_absorpt_correction_T_max  0.443
_exptl_absorpt_correction_T_min  0.178
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'psi scan'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    2.111
_exptl_crystal_description       block
_exptl_crystal_F_000             1124
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.869
_refine_diff_density_min         -2.275
_refine_diff_density_rms         0.253
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.973
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     312
_refine_ls_number_reflns         7615
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.973
_refine_ls_R_factor_all          0.0919
_refine_ls_R_factor_gt           0.0483
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0487P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1050
_refine_ls_wR_factor_ref         0.1224
_reflns_number_gt                4845
_reflns_number_total             7615
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic200387n_si_001_4.cif
_cod_data_source_block           Complex_5
_cod_original_cell_volume        1907.3(12)
_cod_database_code               4325240