Assembly of Keggin-/Dawson-type Polyoxotungstate Clusters with Different Metal Units and SeO32‒Heteroanion Templates
Chen, Wei-Chao; Yan, Li-Kai; Wu, Cai-Xia; Wang, Xin-Long; Shao, Kui-Zhan; Su, Zhong-Min; Wang, En-Bo; Crystal Growth & Design 14 (2014) 5099–; doi:10.1021/cg500719q

data_4511890
_publ_section_title
;
 Assembly of Keggin-/Dawson-type Polyoxotungstate Clusters with Different
 Metal Units and SeO32--Heteroanion Templates
;
_journal_issue                   10
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              5099
_journal_paper_doi               10.1021/cg500719q
_journal_volume                  14
_journal_year                    2014
_chemical_formula_sum            'C8 H62 N4 Na4 O77 Se2 W18'
_chemical_formula_weight         5005.62
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 114.522(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   28.706(5)
_cell_length_b                   13.6800(18)
_cell_length_c                   22.750(4)
_cell_measurement_reflns_used    4112
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.3264
_cell_measurement_theta_min      2.5973
_cell_volume                     8128(2)
_computing_cell_refinement       'RAPID AUTO'
_computing_data_collection       'RAPID AUTO'
_computing_data_reduction        'RAPID AUTO'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 0.01
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX area-detector diffractometer'
_diffrn_measurement_method       '\f and \w scan'
_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  0.0699
_diffrn_reflns_av_sigmaI/netI    0.0759
_diffrn_reflns_limit_h_max       33
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            20450
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.94
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    26.387
_exptl_absorpt_correction_T_max  0.0788
_exptl_absorpt_correction_T_min  0.0707
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'ABSCOR by T.Higashi    8 March, 1995'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    4.091
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             8788
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.22
_platon_squeeze_details
;
;
_refine_diff_density_max         3.706
_refine_diff_density_min         -3.707
_refine_diff_density_rms         0.532
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.107
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     472
_refine_ls_number_reflns         7141
_refine_ls_number_restraints     186
_refine_ls_restrained_S_all      1.096
_refine_ls_R_factor_all          0.0749
_refine_ls_R_factor_gt           0.0557
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0794P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1455
_refine_ls_wR_factor_ref         0.1538
_reflns_number_gt                5398
_reflns_number_total             7141
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg500719q_si_004.cif
_cod_data_source_block           1
_cod_depositor_comments
'Adding full bibliography for 4511888--4511892.cif.'
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4511890