Cation-induced assembly of the first mixed molybdenum‒vanadium hexadecametal host shell cluster anions
Xu, Yan; Zhu, Dun-Ru; Guo, Zi-Jian; Shi, Yu-Jun; Zhang, Kou-Lin; You, Xiao-Zeng; Journal of the Chemical Society, Dalton Transactions  (2001) 772–; doi:10.1039/b010227j

data_7010538
_publ_section_title
;
 Cation-induced assembly of the first mixed molybdenum--vanadium
 hexadecametal host shell cluster anions
;
_journal_issue                   6
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              772
_journal_paper_doi               10.1039/b010227j
_journal_year                    2001
_chemical_formula_sum            'C16 H68 Co2 Mo8 N12 Na O52 P V8'
_chemical_formula_weight         2607.68
_chemical_name_systematic
; 
? 
;
_space_group_IT_number           138
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-P 4ac 2ac'
_symmetry_space_group_name_H-M   'P 42/n c m :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                   22.057(3)
_cell_length_b                   22.057(3)
_cell_length_c                   14.125(3)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      20.18
_cell_measurement_theta_min      2.34
_cell_volume                     6872(2)
_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      293(2)
_diffrn_measured_fraction_theta_full 0.972
_diffrn_measured_fraction_theta_max 0.972
_diffrn_measurement_device_type  'CAD 4'
_diffrn_measurement_method       '\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  0.1042
_diffrn_reflns_av_sigmaI/netI    0.1302
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            5897
_diffrn_reflns_theta_full        24.97
_diffrn_reflns_theta_max         24.97
_diffrn_reflns_theta_min         1.85
_diffrn_standards_decay_%        4.56
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    3.044
_exptl_absorpt_correction_T_max  0.2369
_exptl_absorpt_correction_T_min  0.4826
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    2.520
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             5056
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         2.132
_refine_diff_density_min         -1.652
_refine_diff_density_rms         0.238
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.073
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     247
_refine_ls_number_reflns         3059
_refine_ls_number_restraints     63
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.2104
_refine_ls_R_factor_gt           0.0784
_refine_ls_shift/su_max          0.073
_refine_ls_shift/su_mean         0.007
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1107P)^2^+39.2107P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1817
_refine_ls_wR_factor_ref         0.2437
_reflns_number_gt                1313
_reflns_number_total             3059
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b010227j.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_cell_volume        6872.3(19)
_cod_original_sg_symbol_H-M      P4(2)/ncm
_cod_database_code               7010538