Cr(VI) Trioxide as a Starting Material for the Synthesis of Novel Zero-, One-, and Two-Dimensional Uranyl Dichromates and Chromate-Dichromates
Oleg I. Siidra; Evgeny V. Nazarchuk; Anna N. Suknotova; Roman A. Kayukov; Sergey V. Krivovichev; Inorganic Chemistry 52 (2013) 4729–4735; doi:10.1021/ic400341q

data_4334533
_publ_section_title
;
 Cr(VI) Trioxide as a Starting Material for the Synthesis of Novel Zero-,
 One-, and Two-Dimensional Uranyl Dichromates and Chromate-Dichromates
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4729
_journal_page_last               4735
_journal_paper_doi               10.1021/ic400341q
_journal_volume                  52
_journal_year                    2013
_chemical_formula_sum            'Cr12 O52 Rb8 U4'
_chemical_formula_weight         3091.88
_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                73.880(6)
_cell_angle_beta                 88.865(7)
_cell_angle_gamma                89.841(7)
_cell_formula_units_Z            2
_cell_length_a                   13.236(4)
_cell_length_b                   13.764(4)
_cell_length_c                   14.857(4)
_cell_measurement_temperature    293(2)
_cell_volume                     2599.7(13)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.975
_diffrn_measured_fraction_theta_max 0.975
_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  0.1322
_diffrn_reflns_av_sigmaI/netI    0.1763
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            26663
_diffrn_reflns_theta_full        28.00
_diffrn_reflns_theta_max         28.00
_diffrn_reflns_theta_min         1.54
_exptl_absorpt_coefficient_mu    22.360
_exptl_crystal_density_diffrn    3.950
_exptl_crystal_F_000             2736
_refine_diff_density_max         4.628
_refine_diff_density_min         -2.182
_refine_diff_density_rms         0.420
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.963
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     688
_refine_ls_number_reflns         12255
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      0.963
_refine_ls_R_factor_all          0.1215
_refine_ls_R_factor_gt           0.0715
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0693P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1773
_refine_ls_wR_factor_ref         0.1919
_reflns_number_gt                6794
_reflns_number_total             12255
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic400341q_si_001_3.cif
_cod_data_source_block           Rb2(UO2)(CrO4)(Cr2O7)_(compound_3)
_cod_database_code               4334533