High-dimensional assembly depending on polyoxoanion templates, metal ion coordination geometries, and a flexible bis(imidazole) ligand.
Dong, Bao-xia; Peng, Jun; Gómez-García, Carlos J; Benmansour, Samia; Jia, Heng-qing; Hu, Ning-hai; Inorganic chemistry 46 (2007) 5933–5941; doi:10.1021/ic070007i

data_4339063
_publ_section_title
;
 High-dimensional assembly depending on polyoxoanion templates, metal ion
 coordination geometries, and a flexible bis(imidazole) ligand.
;
_journal_issue                   15
_journal_name_full               'Inorganic chemistry'
_journal_page_first              5933
_journal_page_last               5941
_journal_paper_doi               10.1021/ic070007i
_journal_volume                  46
_journal_year                    2007
_chemical_formula_sum            'C40 H58 As8 N16 Ni2 O43 V14'
_chemical_formula_weight         2880.96
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           142
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-I 4bd 2c'
_symmetry_space_group_name_H-M   'I 41/a c d :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            8
_cell_length_a                   20.9245(4)
_cell_length_b                   20.9245(4)
_cell_length_c                   40.6114(16)
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.30
_cell_measurement_theta_min      1.70
_cell_volume                     17781.1(8)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'CCD area detector'
_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  0.0833
_diffrn_reflns_av_sigmaI/netI    0.0422
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       48
_diffrn_reflns_limit_l_min       -51
_diffrn_reflns_number            53152
_diffrn_reflns_theta_full        28.30
_diffrn_reflns_theta_max         28.30
_diffrn_reflns_theta_min         1.70
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    4.855
_exptl_absorpt_correction_T_max  0.344
_exptl_absorpt_correction_T_min  0.280
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    2.152
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             11168
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.22
_refine_diff_density_max         1.573
_refine_diff_density_min         -0.603
_refine_diff_density_rms         0.138
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     301
_refine_ls_number_reflns         5495
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.0904
_refine_ls_R_factor_gt           0.0527
_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^)+(0.0857P)^2^+98.4009P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1461
_refine_ls_wR_factor_ref         0.1680
_reflns_number_gt                3607
_reflns_number_total             5495
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic070007i-file002.cif
_cod_data_source_block           compound2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      I4(1)/acd
_cod_database_code               4339063