Tetra-n-butylammonium octaphenyloctasilasesquioxane fluoride clathrate
Light, Mark E.; Hursthouse, Michael B.; Taylor, P. G.; Pourny, M.; Bassindale, A. R.; Crystal Structure Report Archive  (2001) 128–; doi:

data_1519325
_publ_section_title
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 Tetra-n-butylammonium octaphenyloctasilasesquioxane fluoride clathrate
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_journal_name_full               'Crystal Structure Report Archive'
_journal_page_first              128
_journal_year                    2001
_chemical_formula_sum            'C64 H76 F N O12 Si8'
_chemical_formula_weight         1294.98
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 108.1550(12)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   23.8267(4)
_cell_length_b                   12.9976(3)
_cell_length_c                   22.1794(5)
_cell_measurement_reflns_used    13914
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     6526.8(2)
_computing_cell_refinement
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, 1998)'
_computing_data_collection       'COLLECT (Hooft, 1998)'
_computing_data_reduction
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, 1998)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker-Nonius KappaCCD'
_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  0.0555
_diffrn_reflns_av_sigmaI/netI    0.0502
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            16965
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         3.01
_exptl_absorpt_coefficient_mu    0.228
_exptl_absorpt_correction_T_max  0.9775
_exptl_absorpt_correction_T_min  0.9347
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SORTAV (Blessing, 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.318
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2736
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.503
_refine_diff_density_min         -0.387
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     389
_refine_ls_number_reflns         5719
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0560
_refine_ls_R_factor_gt           0.0397
_refine_ls_shift/su_max          0.013
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0532P)^2^+8.1613P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1050
_refine_ls_wR_factor_ref         0.1134
_reflns_number_gt                4545
_reflns_number_total             5719
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            eCrystal-128.cif
_cod_data_source_block           01src394
_cod_depositor_comments
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Citation :
Light, Mark E. and Hursthouse, Michael B. and Taylor, P. G. and 
Pourny, M. and Bassindale, A. R. (2001) 
University of Southampton, Crystal Structure Report Archive. 
(doi:10.5258/ecrystals/128)

More at:
http://ecrystals.chem.soton.ac.uk/128/

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 3105 2015-03-04 15:46:00Z robertas 
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_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               1519325