Polarity and Chirality in Uranyl Borates: Insights into Understanding the Vitrification of Nuclear Waste and the Development of Nonlinear Optical Materials
Wang, Shuao; Alekseev, Evgeny V.; Ling, Jie; Liu, Guokui; Depmeier, Wulf; Albrecht-Schmitt, Thomas E.; Chemistry of Materials 22 (2010) 2155–; doi:10.1021/cm9037796

data_4000957
_publ_section_title
;
 Polarity and Chirality in Uranyl Borates: Insights into Understanding the
 Vitrification of Nuclear Waste and the Development of Nonlinear Optical
 Materials
;
_journal_issue                   6
_journal_name_full               'Chemistry of Materials'
_journal_page_first              2155
_journal_paper_doi               10.1021/cm9037796
_journal_volume                  22
_journal_year                    2010
_chemical_formula_moiety         Na?UO2)2[B10O15(OH)5]
_chemical_formula_sum            'B10 Na O24 U2'
_chemical_formula_weight         991.15
_chemical_melting_point          ?
_chemical_name_common            'Sodium uranoborate'
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           145
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  'P 32'
_symmetry_space_group_name_H-M   'P 32'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            3
_cell_length_a                   6.4334(14)
_cell_length_b                   6.4334(14)
_cell_length_c                   35.586(8)
_cell_measurement_reflns_used    4014
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.72
_cell_measurement_theta_min      1.14
_cell_volume                     1275.5(5)
_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 0.957
_diffrn_measured_fraction_theta_max 0.957
_diffrn_measurement_device_type  'BRUKER apex'
_diffrn_measurement_method       '0.3 wide 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  0.0768
_diffrn_reflns_av_sigmaI/netI    0.0885
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       42
_diffrn_reflns_limit_l_min       -46
_diffrn_reflns_number            12568
_diffrn_reflns_theta_full        28.72
_diffrn_reflns_theta_max         28.72
_diffrn_reflns_theta_min         1.14
_exptl_absorpt_coefficient_mu    19.183
_exptl_absorpt_correction_T_max  0.888
_exptl_absorpt_correction_T_min  0.779
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   SHELTXPREP
_exptl_crystal_colour            yellow-green
_exptl_crystal_density_diffrn    3.871
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       tablet
_exptl_crystal_F_000             1311
_exptl_crystal_size_max          0.089
_exptl_crystal_size_mid          0.075
_exptl_crystal_size_min          0.005
_refine_diff_density_max         1.399
_refine_diff_density_min         -1.202
_refine_diff_density_rms         0.266
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.37(2)
_refine_ls_extinction_coef       0.00018(3)
_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   0.948
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     161
_refine_ls_number_reflns         4014
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.948
_refine_ls_R_factor_all          0.0402
_refine_ls_R_factor_gt           0.0364
_refine_ls_shift/su_max          0.015
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0148P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0660
_refine_ls_wR_factor_ref         0.0669
_reflns_number_gt                3759
_reflns_number_total             4014
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cm9037796_si_002.cif
_cod_data_source_block           NaUBO-1
_cod_depositor_comments
;
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 1715 2011-07-08 13:25:40Z 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_database_code               4000957