Uranium(IV) Sulfates: Investigating Structural Periodicity in the Tetravalent Actinides
David D. Schnaars; Richard E. Wilson; Inorganic Chemistry 51 (2012) 9481–9490; doi:10.1021/ic301291w

data_4330265
_publ_contact_author_address
;CSE/200 
Argonne National Laboratory
9600 S. Cass Avenue
Argonne, IL 60439
;
_publ_contact_author_email       rewilson@anl.gov
_publ_contact_author_name        'Richard E. Wilson'
_publ_contact_author_phone       630-252-1288
_publ_section_title
;
 Uranium(IV) Sulfates: Investigating Structural Periodicity in the
 Tetravalent Actinides
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              9481
_journal_page_last               9490
_journal_paper_doi               10.1021/ic301291w
_journal_volume                  51
_journal_year                    2012
_chemical_formula_sum            'H2.5 O17.25 Rb4 S4 U'
_chemical_formula_weight         986.67
_chemical_name_systematic
; 
 ? 
;
_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   none
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 109.705(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.4780(16)
_cell_length_b                   11.3264(15)
_cell_length_c                   13.4294(18)
_cell_measurement_reflns_used    6066
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.89
_cell_measurement_theta_min      4.08
_cell_volume                     1786.8(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'BRUKER APEX II'
_diffrn_measurement_method       '0.5 deg w/ exposures'
_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  0.0784
_diffrn_reflns_av_sigmaI/netI    0.0658
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            28484
_diffrn_reflns_theta_full        31.89
_diffrn_reflns_theta_max         31.89
_diffrn_reflns_theta_min         4.08
_exptl_absorpt_coefficient_mu    20.458
_exptl_absorpt_correction_T_max  0.2493
_exptl_absorpt_correction_T_min  0.1605
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            Green
_exptl_crystal_density_diffrn    3.668
_exptl_crystal_description       Irregular
_exptl_crystal_F_000             1778
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.09
_refine_diff_density_max         1.738
_refine_diff_density_min         -1.423
_refine_diff_density_rms         0.328
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.991
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     245
_refine_ls_number_reflns         6066
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.991
_refine_ls_R_factor_all          0.0656
_refine_ls_R_factor_gt           0.0380
_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^)+(0.0359P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0736
_refine_ls_wR_factor_ref         0.0827
_reflns_number_gt                4473
_reflns_number_total             6066
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic301291w_si_003_4.cif
_cod_data_source_block           4
_cod_original_formula_sum        'H2.50 O17.25 Rb4 S4 U'
_cod_database_code               4330265