Spontaneous reduction and C-H borylation of arenes mediated by uranium(III) disproportionation.
Arnold, Polly L.; Mansell, Stephen M.; Maron, Laurent; McKay, David; Nature chemistry 4 (2012) 668–674; doi:10.1038/nchem.1392

data_1508244
_publ_section_title
;
 Spontaneous reduction and C-H borylation of arenes mediated by
 uranium(III) disproportionation.
;
_journal_issue                   8
_journal_name_full               'Nature chemistry'
_journal_page_first              668
_journal_page_last               674
_journal_paper_doi               10.1038/nchem.1392
_journal_volume                  4
_journal_year                    2012
_chemical_formula_moiety         'C30 H78 N4 Si8 U2'
_chemical_formula_sum            'C30 H78 N4 Si8 U2'
_chemical_formula_weight         1195.74
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 107.967(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.3378(3)
_cell_length_b                   17.6019(5)
_cell_length_c                   13.7838(5)
_cell_measurement_reflns_used    15317
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      29.3592
_cell_measurement_theta_min      2.1675
_cell_volume                     2385.86(14)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.34.46 (release 25-11-2010 CrysAlis171 .NET)
(compiled Nov 25 2010,17:55:46)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.34.46 (release 25-11-2010 CrysAlis171 .NET)
(compiled Nov 25 2010,17:55:46)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.34.46 (release 25-11-2010 CrysAlis171 .NET)
(compiled Nov 25 2010,17:55:46)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 5.1574
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'SuperNova (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0417
_diffrn_reflns_av_sigmaI/netI    0.0270
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            30202
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         2.31
_exptl_absorpt_coefficient_mu    7.004
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.75120
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.34.46 (release 25-11-2010 CrysAlis171 .NET)
(compiled Nov 25 2010,17:55:46)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            Black
_exptl_crystal_density_diffrn    1.664
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1164
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.837
_refine_diff_density_min         -0.466
_refine_diff_density_rms         0.094
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.718
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     211
_refine_ls_number_reflns         4868
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.718
_refine_ls_R_factor_all          0.0237
_refine_ls_R_factor_gt           0.0190
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0351P)^2^+9.7971P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0459
_refine_ls_wR_factor_ref         0.0497
_reflns_number_gt                4392
_reflns_number_total             4868
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            nchem.1392-s3.cif
_cod_data_source_block           (N'')2U(C6H6)U(N'')2_complex_2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        2385.85(13)
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               1508244