Organometallic Uranium(V)-Imido Halide Complexes: From Synthesis to Electronic Structure and Bonding
Christopher R. Graves; Ping Yang; Stosh A. Kozimor; Anthony E. Vaughn; David L. Clark; Steven D. Conradson; Eric J. Schelter; Brian L. Scott; J. D. Thompson; P. Jeffrey Hay; David E. Morris; Jaqueline L. Kiplinger; Journal of the American Chemical Society 130 (2008) 5272–5285; doi:10.1021/ja711010h

data_4107686
_publ_contact_author_address
;
Los Alamos National Laboratory
Los Alamos, NM 87545
USA
;
_publ_contact_author_email       kiplinger@lanl.gov
_publ_contact_author_fax         '+1 505 667 9905'
_publ_contact_author_name        'Jaqueline L. Kiplinger'
_publ_contact_author_phone       '+1 505 665 9553'
_publ_section_title
;
 Organometallic Uranium(V)-Imido Halide Complexes: From Synthesis to
 Electronic Structure and Bonding
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              5272
_journal_page_last               5285
_journal_paper_doi               10.1021/ja711010h
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'C44 H73 Br N U'
_chemical_formula_weight         933.97
_chemical_name_systematic
; 
 ? 
;
_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                88.584(3)
_cell_angle_beta                 86.627(3)
_cell_angle_gamma                74.635(3)
_cell_formula_units_Z            2
_cell_length_a                   11.240(2)
_cell_length_b                   13.272(3)
_cell_length_c                   13.890(3)
_cell_measurement_temperature    141(2)
_cell_volume                     1994.5(7)
_computing_cell_refinement       'SAINT+, v. 7.06 (Bruker AXS, 2001)'
_computing_data_collection       'APEX II, v. 1.08 (Bruker AXS, 2003)'
_computing_data_reduction        'SAINT+, v. 7.06 (Bruker AXS, 2001)'
_computing_molecular_graphics    'SHELXTL, v. 6.10, (Bruker AXS, 2000)'
_computing_publication_material  'SHELXTL, v. 6.10, (Bruker AXS, 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      141(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Bruker D8 with APEXII CCD'
_diffrn_measurement_method       '\w 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  0.0720
_diffrn_reflns_av_sigmaI/netI    0.0986
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            18767
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.12
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    5.101
_exptl_absorpt_correction_T_max  0.9049
_exptl_absorpt_correction_T_min  0.5353
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2.03 (Sheldrick, 2001)'
_exptl_crystal_colour            dark
_exptl_crystal_density_diffrn    1.555
_exptl_crystal_description       'rectangular plate'
_exptl_crystal_F_000             942
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.02
_refine_diff_density_max         2.452
_refine_diff_density_min         -1.012
_refine_diff_density_rms         0.176
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.950
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     370
_refine_ls_number_reflns         6948
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.950
_refine_ls_R_factor_all          0.0683
_refine_ls_R_factor_gt           0.0485
_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^)+(0.0508P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1000
_refine_ls_wR_factor_ref         0.1067
_reflns_number_gt                5322
_reflns_number_total             6948
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja711010h-file004_4.cif
_cod_data_source_block           apx458s
_cod_database_code               4107686