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_4334531
_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            'Cr Cs N O7.5 U0.5'
_chemical_formula_weight         437.93
_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                70.881(8)
_cell_angle_beta                 88.966(9)
_cell_angle_gamma                79.339(9)
_cell_formula_units_Z            4
_cell_length_a                   8.148(3)
_cell_length_b                   8.299(3)
_cell_length_c                   11.805(4)
_cell_measurement_temperature    296(2)
_cell_volume                     740.4(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0483
_diffrn_reflns_av_sigmaI/netI    0.0516
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            10291
_diffrn_reflns_theta_full        28.00
_diffrn_reflns_theta_max         28.00
_diffrn_reflns_theta_min         1.83
_exptl_absorpt_coefficient_mu    17.271
_exptl_crystal_density_diffrn    3.928
_exptl_crystal_F_000             768
_refine_diff_density_max         1.649
_refine_diff_density_min         -3.004
_refine_diff_density_rms         0.225
_refine_ls_extinction_coef       0.00150(17)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     200
_refine_ls_number_reflns         3561
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0303
_refine_ls_R_factor_gt           0.0282
_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^)+(0.0174P)^2^+1.8858P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0707
_refine_ls_wR_factor_ref         0.0719
_reflns_number_gt                3333
_reflns_number_total             3561
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic400341q_si_001_1.cif
_cod_data_source_block           Cs2(UO2)(Cr2O7)(NO3)2_(compound_1)
_cod_original_cell_volume        740.5(4)
_cod_original_formula_sum        'Cr Cs N O7.50 U0.50'
_cod_database_code               4334531