Luminescence in Ce(IV) polyoxometalate [Ce(W5O18)2]8-: a combined experimental and theoretical study.
Roy, Lindsay E; Ortiz-Acosta, Denisse; Batista, Enrique R; Scott, Brian L; Blair, Michael W; May, Iain; Del Sesto, Rico E; Martin, Richard L; Chemical communications (Cambridge, England) 46 (2010) 1848–1850; doi:10.1039/b926660g

data_7105313
_publ_section_title
;
 Luminescence in Ce(IV) polyoxometalate [Ce(W5O18)2]8-: a combined
 experimental and theoretical study.
;
_journal_issue                   11
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              1848
_journal_page_last               1850
_journal_paper_doi               10.1039/b926660g
_journal_volume                  46
_journal_year                    2010
_chemical_formula_sum            'Ce H62 Na8 O67 W10'
_chemical_formula_weight         3297.04
_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_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 95.941(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.041(5)
_cell_length_b                   18.497(5)
_cell_length_c                   18.324(5)
_cell_measurement_reflns_used    8198
_cell_measurement_temperature    120(1)
_cell_measurement_theta_max      55.92
_cell_measurement_theta_min      4.47
_cell_volume                     6082(3)
_computing_cell_refinement       'SAINT+, v. 7.06 (Bruker AXS, 2001)'
_computing_data_collection       'APEX II, v. 1.08 (Bruker AXS, 2003)'
_computing_data_reduction        'SAINT+, v. 7.06 (Bruker AXS, 2001)'
_computing_molecular_graphics    'SHELXTL, v. 6.10, (Bruker AXS, 2000)'
_computing_publication_material  'SHELXTL, v. 6.10, (Bruker AXS, 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(1)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.939
_diffrn_measurement_device_type  'Bruker D8 with APEXII CCD'
_diffrn_measurement_method       '\w 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  0.0668
_diffrn_reflns_av_sigmaI/netI    0.0597
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            32637
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.19
_diffrn_reflns_theta_min         1.87
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    19.746
_exptl_absorpt_correction_T_max  0.2428
_exptl_absorpt_correction_T_min  0.1101
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2.03 (Sheldrick, 2001)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    3.601
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             5936
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         3.259
_refine_diff_density_min         -3.344
_refine_diff_density_rms         0.397
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     394
_refine_ls_number_reflns         7032
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0574
_refine_ls_R_factor_gt           0.0411
_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^)+(0.0593P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0986
_refine_ls_wR_factor_ref         0.1079
_reflns_number_gt                5595
_reflns_number_total             7032
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b926660g.txt
_cod_data_source_block           apx683
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_original_formula_sum        'H62 Ce Na8 O67 W10'
_cod_database_code               7105313