One-Pot versus Sequential Reactions in the Self-Assembly of Gigantic Nanoscale Polyoxotungstates
Jing Gao; Jun Yan; Sebastian Beeg; De-Liang Long; Leroy Cronin; Journal of the American Chemical Society 135 (2013) 1796–1805; doi:10.1021/ja309237x

data_4119251
_publ_section_title
;
 One-Pot versus Sequential Reactions in the Self-Assembly of Gigantic
 Nanoscale Polyoxotungstates
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              1796
_journal_page_last               1805
_journal_paper_doi               10.1021/ja309237x
_journal_volume                  135
_journal_year                    2013
_chemical_formula_moiety
'10(K +),7(C2 H8 N +),(H19 Co2.5 Se3 W42.5 O154 17-),51(H2 O)'
_chemical_formula_sum            'C14 H177 Co2.5 K10 N7 O205 Se3 W42.5'
_chemical_formula_weight         12313.46
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   none
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                104.343(2)
_cell_angle_beta                 107.505(2)
_cell_angle_gamma                103.022(2)
_cell_formula_units_Z            2
_cell_length_a                   20.9947(4)
_cell_length_b                   23.7936(4)
_cell_length_c                   24.4110(4)
_cell_measurement_reflns_used    26766
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.43
_cell_measurement_theta_min      2.94
_cell_volume                     10657.3(4)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan  5 2010,16:28:46)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan  5 2010,16:28:46)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan  5 2010,16:28:46)
;
_computing_molecular_graphics    'Diamond 3'
_computing_publication_material  WinGX
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.977
_diffrn_measured_fraction_theta_max 0.977
_diffrn_measurement_device_type  'Oxford Diffraction Gemini'
_diffrn_measurement_method       '\w & \p 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  0.0964
_diffrn_reflns_av_sigmaI/netI    0.1680
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            158545
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.94
_diffrn_standards_decay_%        none
_exptl_absorpt_coefficient_mu    23.841
_exptl_absorpt_correction_T_max  0.3288
_exptl_absorpt_correction_T_min  0.1790
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan  5 2010,16:28:46)
Analytical numeric absorption correction using a multifaceted crystal
            model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
;
_exptl_crystal_colour            pink
_exptl_crystal_density_diffrn    3.837
_exptl_crystal_description       block
_exptl_crystal_F_000             10909
_exptl_crystal_size_max          0.11
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.06
_refine_diff_density_max         5.73
_refine_diff_density_min         -3.33
_refine_diff_density_rms         0.33
_refine_ls_extinction_coef       none
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.811
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     2052
_refine_ls_number_reflns         40946
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.811
_refine_ls_R_factor_all          0.1226
_refine_ls_R_factor_gt           0.0472
_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^)+(0.0420P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0938
_refine_ls_wR_factor_ref         0.1065
_reflns_number_gt                19415
_reflns_number_total             40946
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ja309237x_si_002_02.cif
_cod_data_source_block           compound2
_cod_original_cell_volume        10657.3(3)
_cod_original_formula_sum        'C14 H177 Co2.50 K10 N7 O205 Se3 W42.50'
_cod_database_code               4119251