Synthesis and CO2Insertion Chemistry of Uranium(IV) Mixed-Sandwich Alkyl and Hydride Complexes
Higgins, Jessica A.; Cloke, F. Geoffrey N.; Roe, S. Mark; Organometallics 32 (2013) 5244–; doi:10.1021/om400720m

data_4081621
_publ_section_title
;
 Synthesis and CO2Insertion Chemistry of Uranium(IV) Mixed-Sandwich Alkyl
 and Hydride Complexes
;
_journal_issue                   19
_journal_name_full               Organometallics
_journal_page_first              5244
_journal_paper_doi               10.1021/om400720m
_journal_volume                  32
_journal_year                    2013
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C37 H66 Si2 U1'
_chemical_formula_sum            'C37 H66 Si2 U'
_chemical_formula_weight         805.11
_chemical_name_common            complex_3_methyl
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_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_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.4
_audit_creation_date             2013-07-03T16:33:43-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                91.3650(10)
_cell_angle_beta                 96.4370(10)
_cell_angle_gamma                107.0750(10)
_cell_formula_units_Z            2
_cell_length_a                   8.6909(2)
_cell_length_b                   12.9149(3)
_cell_length_c                   17.6256(4)
_cell_measurement_reflns_used    21538
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      0.998
_cell_measurement_wavelength     0.71073
_cell_volume                     1875.85(8)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_orient_matrix_type       'by Bruker AXS Collect from scalepack cell'
_diffrn_orient_matrix_UB_11      0.64176E-2
_diffrn_orient_matrix_UB_12      -0.369838E-1
_diffrn_orient_matrix_UB_13      -0.495276E-1
_diffrn_orient_matrix_UB_21      0.119563
_diffrn_orient_matrix_UB_22      0.366933E-1
_diffrn_orient_matrix_UB_23      0.53042E-2
_diffrn_orient_matrix_UB_31      0.195097E-1
_diffrn_orient_matrix_UB_32      -0.622121E-1
_diffrn_orient_matrix_UB_33      0.281153E-1
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0468
_diffrn_reflns_av_unetI/netI     0.0352
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            28201
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         1.16
_diffrn_source                   'Enraf Nonius FR590'
_exptl_absorpt_coefficient_mu    4.413
_exptl_absorpt_correction_T_max  0.3493
_exptl_absorpt_correction_T_min  0.2714
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
        [c.f. r.h. blessing, acta cryst. (1995), a51, 33-38]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.425
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             816
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.711
_refine_diff_density_min         -2.013
_refine_diff_density_rms         0.31
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.219
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     379
_refine_ls_number_reflns         8479
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.219
_refine_ls_R_factor_all          0.031
_refine_ls_R_factor_gt           0.0243
_refine_ls_shift/su_max          0.049
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0396P)^2^+0.7691P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0639
_refine_ls_wR_factor_ref         0.0773
_reflns_number_gt                7774
_reflns_number_total             8479
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om400720m_si_002.cif
_cod_data_source_block           2
_cod_original_cell_volume        1875.85(7)
_cod_database_code               4081621