Trilacunary A-beta-Keggin tungstogermanates and -silicates functionalized with phenyltin(IV) electrophiles.
Reinoso, Santiago; Piedra-Garza, Luis Fernando; Dickman, Michael H.; Praetorius, Antonia; Biesemans, Monique; Willem, Rudolph; Kortz, Ulrich; Dalton transactions (Cambridge, England : 2003) 39 (2010) 248–255; doi:10.1039/b910889k

data_7024090
_publ_section_title
;
 Trilacunary A-beta-Keggin tungstogermanates and -silicates functionalized
 with phenyltin(IV) electrophiles.
;
_journal_issue                   1
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              248
_journal_page_last               255
_journal_paper_doi               10.1039/b910889k
_journal_volume                  39
_journal_year                    2010
_chemical_formula_sum            'C18 H33.25 Cs5 Ge O48.62 Sn3 W9'
_chemical_formula_weight         3775.56
_chemical_name_systematic
;
?
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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            16
_cell_length_a                   23.9780(5)
_cell_length_b                   20.3364(4)
_cell_length_c                   51.0261(11)
_cell_measurement_reflns_used    9107
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      24.83
_cell_measurement_theta_min      3.80
_cell_volume                     24881.7(9)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1773
_diffrn_reflns_av_sigmaI/netI    0.0805
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       60
_diffrn_reflns_limit_l_min       -60
_diffrn_reflns_number            281885
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         3.71
_exptl_absorpt_coefficient_mu    21.209
_exptl_absorpt_correction_T_max  0.6526
_exptl_absorpt_correction_T_min  0.0545
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    4.032
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             26452
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.03
_exptl_crystal_size_min          0.02
_refine_diff_density_max         4.954
_refine_diff_density_min         -2.412
_refine_diff_density_rms         0.454
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.081
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     804
_refine_ls_number_reflns         21786
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_all          0.1019
_refine_ls_R_factor_gt           0.0582
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0540P)^2^+1000.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1305
_refine_ls_wR_factor_ref         0.1516
_reflns_number_gt                14623
_reflns_number_total             21786
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b910889k.txt
_cod_data_source_block           bfp
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7024090