Novel polyoxometalate-phosphazene aggregates and their use as catalysts for biphasic oxidations with hydrogen peroxide
Michael Craven; Rana Yahya; Elena Kozhevnikova; Ramamoorthy Boomishankar; Craig M. Robertson; Alexander Steiner; Ivan Kozhevnikov; Chem.Commun. 49 (2013) 349–; doi:10.1039/c2cc36793a

data_7108731
_publ_section_title
;
 Novel polyoxometalate-phosphazene aggregates and their use as catalysts
 for biphasic oxidations with hydrogen peroxide
;
_journal_name_full               Chem.Commun.
_journal_page_first              349
_journal_paper_doi               10.1039/c2cc36793a
_journal_volume                  49
_journal_year                    2013
_chemical_formula_moiety
'(C24 H61 N9 P3 1+)4, Si W12 O40 4+, 2(C H4 O)'
_chemical_formula_sum            'C98 H252 N36 O42 P12 Si W12'
_chemical_formula_weight         5213.29
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 108.202(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   20.110(3)
_cell_length_b                   18.245(3)
_cell_length_c                   24.298(4)
_cell_volume                     8469(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker Smart Apex'
_diffrn_measurement_method       \w
_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  0.0591
_diffrn_reflns_av_sigmaI/netI    0.0543
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            36130
_diffrn_reflns_theta_full        20.82
_diffrn_reflns_theta_max         20.82
_diffrn_reflns_theta_min         4.08
_exptl_absorpt_coefficient_mu    8.308
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.434
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.044
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             5020
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         2.635
_refine_diff_density_min         -1.298
_refine_diff_density_rms         0.227
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     475
_refine_ls_number_reflns         8788
_refine_ls_number_restraints     1063
_refine_ls_restrained_S_all      0.994
_refine_ls_R_factor_all          0.0985
_refine_ls_R_factor_gt           0.0663
_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^)+(0.0746P)^2^+346.6389P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1628
_refine_ls_wR_factor_ref         0.1909
_reflns_number_gt                6440
_reflns_number_total             8788
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2cc36793a.txt
_cod_data_source_block           bsr47a
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7108731