New photoresponsive charge-transfer spiropyran/polyoxometalate assemblies with highly tunable optical properties
Khadija Hakouk; Olivier Oms; Anne Dolbecq; Jerome Marrot; Ali Saad; Pierre Mialane; Houda El Bekkachi; Stephane Jobic; Philippe Deniard; Remi Dessapt; Journal of Materials Chemistry C 2 (2014) 1628–1641; doi:10.1039/C3TC31992J

data_7233633
_publ_section_title
;
 New photoresponsive charge-transfer spiropyran/polyoxometalate assemblies
 with highly tunable optical properties
;
_journal_name_full               'Journal of Materials Chemistry C'
_journal_page_first              1628
_journal_page_last               1641
_journal_paper_doi               10.1039/C3TC31992J
_journal_volume                  2
_journal_year                    2014
_chemical_formula_sum            'C86 H106 Mo8 N10 O32'
_chemical_formula_weight         2559.32
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_cell_angle_alpha                71.980(2)
_cell_angle_beta                 84.391(2)
_cell_angle_gamma                88.1410(10)
_cell_formula_units_Z            1
_cell_length_a                   11.5703(4)
_cell_length_b                   11.8955(4)
_cell_length_c                   18.1788(6)
_cell_measurement_reflns_used    9586
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      26.32
_cell_measurement_theta_min      2.22
_cell_volume                     2367.90(14)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 512x512
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0605
_diffrn_reflns_av_unetI/netI     0.0697
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            65055
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.025
_diffrn_reflns_theta_min         1.769
_exptl_absorpt_coefficient_mu    1.110
_exptl_absorpt_correction_T_max  0.978
_exptl_absorpt_correction_T_min  0.916
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, V2.10)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.795
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             1284
_exptl_crystal_size_max          0.080
_exptl_crystal_size_mid          0.040
_exptl_crystal_size_min          0.020
_refine_diff_density_max         0.597
_refine_diff_density_min         -0.583
_refine_diff_density_rms         0.109
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.995
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     625
_refine_ls_number_reflns         13800
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.995
_refine_ls_R_factor_all          0.0940
_refine_ls_R_factor_gt           0.0415
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0270P)^2^+1.3687P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0702
_refine_ls_wR_factor_ref         0.0841
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                8346
_reflns_number_total             13800
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            1000002.cif
_cod_data_source_block           PCOD1000002
_cod_database_code               7233633
_shelxl_version_number           2013-4