Photochromic hybrid materials of cucurbituril and polyoxometalates as photocatalysts under visible light
Jian Lu; Jing-Xiang Lin; Xiu-Ling Zhao; Rong Cao; Chem.Commun. 48 (2012) 669–; doi:10.1039/c1cc16268c

data_7107183
_publ_section_title
;
 Photochromic hybrid materials of cucurbituril and polyoxometalates as
 photocatalysts under visible light
;
_journal_name_full               Chem.Commun.
_journal_page_first              669
_journal_paper_doi               10.1039/c1cc16268c
_journal_volume                  48
_journal_year                    2012
_chemical_formula_sum            'C80 H100 N40 Na8 O95.88 P2 Rb2 W18'
_chemical_formula_weight         6882.10
_chemical_name_systematic
;
?
;
_space_group_IT_number           18
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2 2ab'
_symmetry_space_group_name_H-M   'P 21 21 2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   18.136(3)
_cell_length_b                   33.666(6)
_cell_length_c                   12.607(2)
_cell_measurement_temperature    297(2)
_cell_volume                     7697(2)
_computing_cell_refinement       'CrystalClear (Rigaku Corp., 2000)'
_computing_data_collection       'CrystalClear (Rigaku Corp., 2000)'
_computing_data_reduction        'CrystalClear (Rigaku Corp., 2000)'
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      297(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type
;
Mercury
;
_diffrn_measurement_method       dtprofit.ref
_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  0.0910
_diffrn_reflns_av_sigmaI/netI    0.0914
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       43
_diffrn_reflns_limit_k_min       -42
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            67766
_diffrn_reflns_theta_full        27.45
_diffrn_reflns_theta_max         27.45
_diffrn_reflns_theta_min         1.62
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    14.177
_exptl_absorpt_correction_T_max  0.242
_exptl_absorpt_correction_T_min  0.137
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   CrystalClear
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.969
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             6302
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.1
_refine_diff_density_max         4.303
_refine_diff_density_min         -2.847
_refine_diff_density_rms         0.575
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.11(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.203
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     927
_refine_ls_number_reflns         17573
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.203
_refine_ls_R_factor_all          0.0944
_refine_ls_R_factor_gt           0.0858
_refine_ls_shift/su_max          0.097
_refine_ls_shift/su_mean         0.005
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0823P)^2^+125.5924P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2070
_refine_ls_wR_factor_ref         0.2184
_reflns_number_gt                16058
_reflns_number_total             17573
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1cc16268c.txt
_cod_data_source_block           CB5POM2
_cod_original_cell_volume        7698(2)
_cod_original_sg_symbol_H-M      P2(1)2(1)2
_cod_database_code               7107183