Ligand Metalation in the Reactivity of a Tetravalent Uranium Amides
Ilia Korobkov; Sandro Gambarotta; Inorganic Chemistry 49 (2010) 3409–3418; doi:10.1021/ic902567m

data_4315311
_publ_section_title
;
 Ligand Metalation in the Reactivity of a Tetravalent Uranium Amides
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3409
_journal_page_last               3418
_journal_paper_doi               10.1021/ic902567m
_journal_volume                  49
_journal_year                    2010
_chemical_formula_sum            'C18 H52 N3 Si6 U'
_chemical_formula_weight         717.20
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.607(3)
_cell_length_b                   8.4404(12)
_cell_length_c                   21.682(3)
_cell_measurement_reflns_used    3095
_cell_measurement_temperature    203(2)
_cell_measurement_theta_max      28.65
_cell_measurement_theta_min      2.38
_cell_volume                     3405.2(9)
_computing_cell_refinement       'SMART, Bruker (2000)'
_computing_data_collection       'SMART, Bruker (2000)'
_computing_data_reduction        'XPREP, Bruker (2000)'
_computing_molecular_graphics    'SHELXTL, Bruker (2000)'
_computing_publication_material  'SHELXTL, Bruker (2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      203(2)
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.970
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0939
_diffrn_reflns_av_sigmaI/netI    0.0602
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            14445
_diffrn_reflns_theta_full        21.96
_diffrn_reflns_theta_max         21.96
_diffrn_reflns_theta_min         2.17
_diffrn_standards_decay_%        <1
_exptl_absorpt_coefficient_mu    4.988
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.725362
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker (2000)'
_exptl_crystal_colour            dark_red
_exptl_crystal_density_diffrn    1.399
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1428
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.710
_refine_diff_density_min         -0.459
_refine_diff_density_rms         0.074
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     208
_refine_ls_number_reflns         2189
_refine_ls_number_restraints     90
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.0844
_refine_ls_R_factor_gt           0.0448
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0267P)^2^+4.3678P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0752
_refine_ls_wR_factor_ref         0.0848
_reflns_number_gt                1448
_reflns_number_total             2189
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic902567m_si_002_5.cif
_cod_data_source_block           sg2059a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to the built-in table from CIF Core
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_cell_volume        3405.2(8)
_cod_database_code               4315311