[La(UO2)V2O7][(UO2)(VO4)] the first lanthanum uranyl-vanadate with structure built from two types of sheets based upon the uranophane anion-topology
Mer, A.; Obbade, S.; Rivenet, M.; Renard, C.; Abraham, F.; Journal of Solid State Chemistry 185 (2012) 180–186; doi:10.1016/j.jssc.2011.10.042

data_1563086
_publ_section_title
;
 [La(UO2)V2O7][(UO2)(VO4)] the first lanthanum uranyl-vanadate with
 structure built from two types of sheets based upon the uranophane
 anion-topology
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              180
_journal_page_last               186
_journal_paper_doi               10.1016/j.jssc.2011.10.042
_journal_volume                  185
_journal_year                    2012
_chemical_formula_sum            'La O15 U2 V3'
_chemical_formula_weight         1007.79
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.9470(2)
_cell_length_b                   7.0934(2)
_cell_length_c                   25.7464(6)
_cell_measurement_reflns_used    9911
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      34.110
_cell_measurement_theta_min      2.978
_cell_volume                     1268.73(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0563
_diffrn_reflns_av_sigmaI/netI    0.0417
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -41
_diffrn_reflns_number            52343
_diffrn_reflns_theta_full        34.84
_diffrn_reflns_theta_max         34.84
_diffrn_reflns_theta_min         2.98
_exptl_absorpt_coefficient_mu    30.925
_exptl_absorpt_correction_T_max  0.502
_exptl_absorpt_correction_T_min  0.25
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    5.276
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1720
_refine_diff_density_max         1.446
_refine_diff_density_min         -1.367
_refine_diff_density_rms         0.268
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.002(4)
_refine_ls_extinction_coef       0.000311(16)
_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   0.989
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         5493
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.989
_refine_ls_R_factor_all          0.0283
_refine_ls_R_factor_gt           0.0219
_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^)+(0.0062P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0339
_refine_ls_wR_factor_ref         0.0352
_reflns_number_gt                4942
_reflns_number_total             5493
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            JSSC-2012-185-180.CIF
_cod_data_source_block           lauvo2m
_cod_database_code               1563086