Facile Synthesis of Novel Functionalized Silsesquioxane Nanostructures Containing an Encapsulated Fluoride Anion
El Aziz, Youssef; Bassindale, Alan R.; Taylor, Peter G.; Horton, Peter N.; Stephenson, Richard A.; Hursthouse, Michael B.; Organometallics 31 (2012) 6032–; doi:10.1021/om300277g

data_4078994
_publ_section_title
;
 Facile Synthesis of Novel Functionalized Silsesquioxane Nanostructures
 Containing an Encapsulated Fluoride Anion
;
_journal_issue                   17
_journal_name_full               Organometallics
_journal_page_first              6032
_journal_paper_doi               10.1021/om300277g
_journal_volume                  31
_journal_year                    2012
_chemical_formula_sum            'C48 H92 F N O28 Si8'
_chemical_formula_weight         1374.95
_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_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                 111.3600(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.5416(2)
_cell_length_b                   14.5201(2)
_cell_length_c                   25.3577(3)
_cell_measurement_reflns_used    15769
_cell_measurement_temperature    160(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      2.910
_cell_volume                     7043.82(15)
_computing_cell_refinement
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_data_collection       'COLLECT (Hooft, R.W.W., 1998)'
_computing_data_reduction
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_molecular_graphics    'ORTEP3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      160(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type
'Bruker-Nonius Roper CCD camera on \k-goniostat'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0382
_diffrn_reflns_av_sigmaI/netI    0.0232
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            59096
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.94
_exptl_absorpt_coefficient_mu    0.231
_exptl_absorpt_correction_T_max  0.9596
_exptl_absorpt_correction_T_min  0.9011
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2007/2 (Sheldrick, G.M., 2007)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.297
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             2928
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.18
_refine_diff_density_max         1.153
_refine_diff_density_min         -0.382
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     396
_refine_ls_number_reflns         8034
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0487
_refine_ls_R_factor_gt           0.0433
_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^)+(0.0541P)^2^+12.5706P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1117
_refine_ls_wR_factor_ref         0.1153
_reflns_number_gt                7193
_reflns_number_total             8034
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om300277g_si_001.cif
_cod_data_source_block           EY253
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4078994