Redox-active polyoxometalate-based crystalline material-immobilized noble metal nanoparticles: spontaneous reduction and synergistic catalytic activity
Du, Dong-Ying; Qin, Jun-Sheng; Wang, Chun-Gang; Liu, Xian-Chun; Li, Shun-Li; Su, Zhong-Min; Wang, Xin-Long; Lan, Ya-Qian; Wang, En-Bo; Journal of Materials Chemistry 22 (2012) 21040–; doi:10.1039/c2jm33959e

data_7215097
_publ_section_title
;
 Redox-active polyoxometalate-based crystalline material-immobilized noble
 metal nanoparticles: spontaneous reduction and synergistic catalytic
 activity
;
_journal_issue                   39
_journal_name_full               'Journal of Materials Chemistry'
_journal_page_first              21040
_journal_paper_doi               10.1039/c2jm33959e
_journal_volume                  22
_journal_year                    2012
_chemical_formula_moiety         'H344 Mn40 Mo96 Na24 O634 P68'
_chemical_formula_sum            'H344 Mn40 Mo96 Na24 O634 P68'
_chemical_formula_weight         24556.31
_chemical_name_systematic
;
?
;
_space_group_IT_number           142
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-I 4bd 2c'
_symmetry_space_group_name_H-M   'I 41/a c d :2'
_atom_sites_solution_hydrogens   none
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.0000(10)
_cell_angle_beta                 90.0000(10)
_cell_angle_gamma                90.0000(10)
_cell_formula_units_Z            2
_cell_length_a                   27.0880(13)
_cell_length_b                   27.0880(13)
_cell_length_c                   41.2550(14)
_cell_measurement_temperature    293(2)
_cell_volume                     30271(2)
_computing_cell_refinement       'SMART (Bruker, 1997)'
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL-PLUS (Sheldrick, 1990)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97(Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'Bruker APEX CCD area-detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0459
_diffrn_reflns_av_sigmaI/netI    0.0260
_diffrn_reflns_limit_h_max       30
_diffrn_reflns_limit_h_min       -36
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -36
_diffrn_reflns_limit_l_max       51
_diffrn_reflns_limit_l_min       -54
_diffrn_reflns_number            88182
_diffrn_reflns_theta_full        28.27
_diffrn_reflns_theta_max         28.27
_diffrn_reflns_theta_min         1.45
_exptl_absorpt_coefficient_mu    3.041
_exptl_absorpt_correction_T_max  0.6106
_exptl_absorpt_correction_T_min  0.5289
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS(Sheldrick, 1996)'
_exptl_crystal_density_diffrn    2.694
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             23464
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         2.143
_refine_diff_density_min         -1.493
_refine_diff_density_rms         0.263
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.075
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     471
_refine_ls_number_reflns         9272
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.075
_refine_ls_R_factor_all          0.0574
_refine_ls_R_factor_gt           0.0451
_refine_ls_shift/su_max          0.047
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0700P)^2^+528.9536P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1305
_refine_ls_wR_factor_ref         0.1393
_reflns_number_gt                7584
_reflns_number_total             9272
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c2jm33959e.txt
_cod_data_source_block           mm
_cod_original_sg_symbol_Hall     -I4bd2c
_cod_original_sg_symbol_H-M      I41/acd
_cod_database_code               7215097