Crystal Chemistry of the Potassium and Rubidium Uranyl Borate Families Derived from Boric Acid Fluxes
Shuao Wang; Evgeny V. Alekseev; Jared T. Stritzinger; Wulf Depmeier; Thomas E. Albrecht-Schmitt; Inorganic Chemistry 49 (2010) 6690–6696; doi:10.1021/ic100728s

data_4316074
_publ_section_title
;
 Crystal Chemistry of the Potassium and Rubidium Uranyl Borate Families
 Derived from Boric Acid Fluxes
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              6690
_journal_page_last               6696
_journal_paper_doi               10.1021/ic100728s
_journal_volume                  49
_journal_year                    2010
_chemical_formula_moiety         'K[(UO2)2 B10 O15 (OH)5]'
_chemical_formula_sum            'B10 K O24 U2'
_chemical_formula_weight         1007.26
_chemical_melting_point          ?
_chemical_name_common            'Potassium uranyl borate'
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 96.3710(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.4637(4)
_cell_length_b                   11.1151(7)
_cell_length_c                   25.4185(16)
_cell_measurement_reflns_used    2234
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.62
_cell_measurement_theta_min      1.61
_cell_volume                     1814.9(2)
_computing_cell_refinement       'smart saint'
_computing_data_collection       smart
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXP-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELXCIF-97 (Sheldrick, 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 0
_diffrn_measured_fraction_theta_full 0.958
_diffrn_measured_fraction_theta_max 0.958
_diffrn_measurement_device_type  'BRUKER apex II'
_diffrn_measurement_method       '0.5 wide w/ exposures'
_diffrn_radiation_monochromator  'Quazar optics'
_diffrn_radiation_source         'Imus microfocused'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1311
_diffrn_reflns_av_sigmaI/netI    0.0744
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            10602
_diffrn_reflns_theta_full        28.62
_diffrn_reflns_theta_max         28.62
_diffrn_reflns_theta_min         1.61
_exptl_absorpt_coefficient_mu    18.182
_exptl_absorpt_correction_T_max  0.849
_exptl_absorpt_correction_T_min  0.462
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   SHELTXPREP
_exptl_crystal_colour            Yellow-green
_exptl_crystal_density_diffrn    3.686
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Tablet
_exptl_crystal_F_000             1780
_exptl_crystal_size_max          0.043
_exptl_crystal_size_mid          0.039
_exptl_crystal_size_min          0.009
_refine_diff_density_max         5.110
_refine_diff_density_min         -1.781
_refine_diff_density_rms         0.488
_refine_ls_extinction_coef       0.00105(6)
_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   1.387
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     124
_refine_ls_number_reflns         2234
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.387
_refine_ls_R_factor_all          0.0509
_refine_ls_R_factor_gt           0.0407
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0161P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1003
_refine_ls_wR_factor_ref         0.1027
_reflns_number_gt                1835
_reflns_number_total             2234
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic100728s_si_002_2.cif
_cod_data_source_block           KUBO2
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/adriana/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1555 2011-01-17 13:19:09Z saulius 

The following automatic conversions were performed:

'_chemical_melting_point' value 'n/a' was changed to '?' - the value
is undefined or not given.

Automatic conversion script
Id: cif_fix_values 1569 2011-02-09 13:29:24Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'n/a' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4316074