Hydrothermal synthesis, structures and catalytic properties of the new open-framework cobalt tungsten phosphates (enH2)3[Co3W4P4O28] and K6[Co3W4P4O28]�4H2O
Yan, Bangbo; Goh, Ngoh K.; Chia, Lian S.; Stucky, Galen D.; Journal of Materials Chemistry 14 (2004) 1567–; doi:10.1039/b402942a

data_7204863
_publ_section_title
;
 Hydrothermal synthesis, structures and catalytic properties of the new
 open-framework cobalt tungsten phosphates (enH2)3[Co3W4P4O28] and
 K6[Co3W4P4O28]&#xFFFD;4H2O
;
_journal_issue                   10
_journal_name_full               'Journal of Materials Chemistry'
_journal_page_first              1567
_journal_paper_doi               10.1039/b402942a
_journal_volume                  14
_journal_year                    2004
_chemical_formula_sum            'Co3 H8 K6 O32 P4 W4'
_chemical_formula_weight         1790.73
_chemical_name_systematic
;
?
;
_space_group_IT_number           88
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-I 4ad'
_symmetry_space_group_name_H-M   'I 41/a :2'
_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            4
_cell_length_a                   16.960(5)
_cell_length_b                   16.960(5)
_cell_length_c                   10.705(5)
_cell_measurement_reflns_used    23
_cell_measurement_temperature    299(2)
_cell_measurement_theta_max      12.33
_cell_measurement_theta_min      2.42
_cell_volume                     3079.2(19)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_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      299(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '2\q/\w 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  0.0799
_diffrn_reflns_av_sigmaI/netI    0.1243
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -1
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -1
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -1
_diffrn_reflns_number            1844
_diffrn_reflns_theta_full        24.93
_diffrn_reflns_theta_max         24.93
_diffrn_reflns_theta_min         2.25
_diffrn_standards_decay_%        10.31
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    17.591
_exptl_absorpt_correction_T_max  0.6915
_exptl_absorpt_correction_T_min  0.6017
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            BLUE
_exptl_crystal_density_diffrn    3.863
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       OCTAHEDRAL
_exptl_crystal_F_000             3260
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.287
_refine_diff_density_min         -1.620
_refine_diff_density_rms         0.405
_refine_ls_extinction_coef       0.00002(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.997
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     104
_refine_ls_number_reflns         1348
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.997
_refine_ls_R_factor_all          0.1066
_refine_ls_R_factor_gt           0.0547
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0374P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0955
_refine_ls_wR_factor_ref         0.1106
_reflns_number_gt                885
_reflns_number_total             1348
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b402942a.txt
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
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_sg_symbol_H-M      I4(1)/a
_cod_original_formula_sum        'H8 Co3 K6 O32 P4 W4'
_cod_database_code               7204863