Cation-Directed Synthesis of Tungstosilicates. 2. Synthesis, Structure, and Characterization of the Open Wells-Dawson Anion α-[{K(H2O)2}(Si2W18O66)]15- and Its Transiton-Metal Derivatives [{M(H2O)}(μ-H2O)2K(Si2W18O66)]13- and [{M(H2O)}(μ-H2O)2K{M(H2O)4}(Si2W18O66)]11-
Nathalie Leclerc-Laronze; Jérôme Marrot; Gilbert Hervé; Inorganic Chemistry 44 (2005) 1275–1281; doi:10.1021/ic0486769

data_4308729
_publ_contact_author
;
Pr. G. Herv\'e
Institut Lavoisier, IREM, UMR 8637
Universit\'e de Versailles Saint-Quentin-en-Yvelines
45 Avenue des Etats Unis
78035 Versailles cedex
France
;
_publ_contact_author_email       herve@chimie.uvsq.fr
_publ_contact_author_fax         '(33) 1 39 25 43 81'
_publ_contact_author_phone       '(33) 1 39 25 42 32'
_publ_section_title
;
Cation-Directed Synthesis of Tungstosilicates. 2. Synthesis, Structure, and
Characterization of the Open Wells-Dawson Anion
\a-[{K(H2O)2}(Si2W18O66)]15- and Its Transiton-Metal Derivatives
[{M(H2O)}(\m-H2O)2K(Si2W18O66)]13- and
[{M(H2O)}(\m-H2O)2K{M(H2O)4}(Si2W18O66)]11-
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1275
_journal_page_last               1281
_journal_paper_doi               10.1021/ic0486769
_journal_volume                  44
_journal_year                    2005
_chemical_formula_sum            'K13 Ni1.5 O88.75 Si2 W18'
_chemical_formula_weight         5381.84
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 96.8770(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.4810(2)
_cell_length_b                   23.5392(3)
_cell_length_c                   30.9160(4)
_cell_measurement_reflns_used    13908
_cell_measurement_temperature    293(2)
_cell_volume                     9017.5(2)
_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, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 512x512
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.1531
_diffrn_reflns_av_sigmaI/netI    0.1617
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            40271
_diffrn_reflns_theta_full        23.30
_diffrn_reflns_theta_max         23.30
_diffrn_reflns_theta_min         1.09
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    23.900
_exptl_absorpt_correction_T_max  0.6464
_exptl_absorpt_correction_T_min  0.0322
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    3.964
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             9436
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.976
_refine_diff_density_min         -2.005
_refine_diff_density_rms         0.442
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1121
_refine_ls_number_reflns         12978
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.1648
_refine_ls_R_factor_gt           0.0707
_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^)+(0.0490P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1248
_refine_ls_wR_factor_ref         0.1562
_reflns_number_gt                6651
_reflns_number_total             12978
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0486769si20040929_110920_1.cif
_cod_data_source_block           1Ni2-K
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_formula_sum        'K13 Ni1.50 O88.75 Si2 W18'
_cod_database_code               4308729