U(IV) Chalcogenolates Synthesized via Oxidation of Uranium Metal by Dichalcogenides
Andrew J. Gaunt; Brian L. Scott; Mary P. Neu; Inorganic Chemistry 45 (2006) 7401–7407; doi:10.1021/ic060560k

data_4345999
_publ_section_title
;
 U(IV) Chalcogenolates Synthesized via Oxidation of Uranium Metal by
 Dichalcogenides
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              7401
_journal_page_last               7407
_journal_paper_doi               10.1021/ic060560k
_journal_volume                  45
_journal_year                    2006
_chemical_formula_sum            'C108 H100 N12 Se12 U4'
_chemical_formula_weight         3465.64
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 111.5500(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   29.362(2)
_cell_length_b                   12.5300(9)
_cell_length_c                   31.388(2)
_cell_measurement_temperature    141(2)
_cell_volume                     10740.6(13)
_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 0.999
_diffrn_measured_fraction_theta_max 0.990
_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  0.0833
_diffrn_reflns_av_sigmaI/netI    0.0633
_diffrn_reflns_limit_h_max       35
_diffrn_reflns_limit_h_min       -35
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       38
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            51082
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.86
_diffrn_reflns_theta_min         1.63
_diffrn_standards_decay_%        '< 2'
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    10.132
_exptl_absorpt_correction_T_max  0.8230
_exptl_absorpt_correction_T_min  0.3312
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS v 2.03 (Sheldrick, 2001)'
_exptl_crystal_colour            dark
_exptl_crystal_density_diffrn    2.143
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             6432
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.930
_refine_diff_density_min         -0.815
_refine_diff_density_rms         0.190
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.958
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     613
_refine_ls_number_reflns         10326
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.958
_refine_ls_R_factor_all          0.0557
_refine_ls_R_factor_gt           0.0325
_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^)+(0.0277P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0597
_refine_ls_wR_factor_ref         0.0640
_reflns_number_gt                7600
_reflns_number_total             10326
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic060560ksi20060614_012839.cif
_cod_data_source_block           apx144
_cod_original_cell_volume        10740.8(13)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4345999