Isopolyoxometalates derived from arylstibonic acids with "reverse-Keggin ion" structures based on [M(RSb)(12)O(28)] cores, M = Co(ii) or Zn(ii).
Nicholson, Brian K.; Clark, Christopher J.; Telfer, Shane G.; Groutso, Tania; Dalton transactions (Cambridge, England : 2003) 41 (2012) 9964–9970; doi:10.1039/c2dt30341h

data_7019738
_publ_section_title
;
 Isopolyoxometalates derived from arylstibonic acids with
 &quot;reverse-Keggin ion&quot; structures based on [M(RSb)(12)O(28)]
 cores, M = Co(ii) or Zn(ii).
;
_journal_issue                   33
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9964
_journal_page_last               9970
_journal_paper_doi               10.1039/c2dt30341h
_journal_volume                  41
_journal_year                    2012
_chemical_formula_moiety
'C84 H84 Co O28 Sb12, 4(Co H6 O3), 6(H2O), 2 Cl'
_chemical_formula_sum            'C84 H120 Cl2 Co5 O46 Sb12'
_chemical_formula_weight         3692.35
_space_group_IT_number           118
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P -4 -2n'
_symmetry_space_group_name_H-M   'P -4 n 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            2
_cell_length_a                   16.5969(7)
_cell_length_b                   16.5969(7)
_cell_length_c                   24.2315(17)
_cell_measurement_reflns_used    7631
_cell_measurement_temperature    139(2)
_cell_measurement_theta_max      72.0
_cell_measurement_theta_min      6.65
_cell_volume                     6674.7(6)
_computing_cell_refinement       'FSProcess in Process-Auto (Rigaku, 1998)'
_computing_data_collection       'CrystalClear (Rigaku, 2005)'
_computing_data_reduction        'FSProcess in Process-Auto (Rigaku, 1998)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      139(2)
_diffrn_detector_area_resol_mean 10
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Rigaku Spider'
_diffrn_measurement_method       \w-scans
_diffrn_radiation_monochromator  'Rigaku VariMax-HF Confocal Optical System'
_diffrn_radiation_source         'Rigaku MM007 rotating anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0743
_diffrn_reflns_av_sigmaI/netI    0.0464
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            57610
_diffrn_reflns_theta_full        72.12
_diffrn_reflns_theta_max         72.12
_diffrn_reflns_theta_min         6.65
_exptl_absorpt_coefficient_mu    24.603
_exptl_absorpt_correction_T_max  1.0
_exptl_absorpt_correction_T_min  0.36
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(ABSCOR; Higashi, 1995)'
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.837
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             3546
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_platon_squeeze_details
;
;
_refine_diff_density_max         1.080
_refine_diff_density_min         -0.556
_refine_diff_density_rms         0.119
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.067(12)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     332
_refine_ls_number_reflns         6530
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0540
_refine_ls_R_factor_gt           0.0459
_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^)+(0.0650P)^2^+16.4759P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1231
_refine_ls_wR_factor_ref         0.1310
_reflns_number_gt                5645
_reflns_number_total             6530
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt30341h.txt
_cod_data_source_block           csco_sq
_cod_database_code               7019738