Assembly of tetrameric dimethyltin-functionalized selenotungstates: from nanoclusters to one-dimensional chains.
Chen, Wei-Chao; Qin, Chao; Li, Yang-Guang; Zang, Hong-Ying; Shao, Kui-Zhan; Su, Zhong-Min; Wang, En-Bo; Liu, Hong-Sheng; Chemical communications (Cambridge, England) 51 (2015) 2433–2436; doi:10.1039/c4cc08575b

data_7116204
_publ_section_title
;
 Assembly of tetrameric dimethyltin-functionalized selenotungstates: from
 nanoclusters to one-dimensional chains.
;
_journal_issue                   12
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              2433
_journal_page_last               2436
_journal_paper_doi               10.1039/c4cc08575b
_journal_volume                  51
_journal_year                    2015
_chemical_formula_sum            'C28 H245 N7 Na12 O268 Se8 Sn7 W54'
_chemical_formula_weight         16635.60
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2014-12-12 deposited with the CCDC.
2014-12-31 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 110.2392(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   33.9004(14)
_cell_length_b                   36.2831(14)
_cell_length_c                   28.2841(11)
_cell_measurement_reflns_used    9131
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.1620
_cell_measurement_theta_min      2.2184
_cell_volume                     32642(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      296(2)
_diffrn_detector_area_resol_mean 0.01
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.1269
_diffrn_reflns_av_sigmaI/netI    0.1641
_diffrn_reflns_limit_h_max       40
_diffrn_reflns_limit_h_min       -39
_diffrn_reflns_limit_k_max       43
_diffrn_reflns_limit_k_min       -43
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            189129
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.39
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    20.474
_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    3.385
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             29424
_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         4.513
_refine_diff_density_min         -2.517
_refine_diff_density_rms         0.403
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.986
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1599
_refine_ls_number_reflns         57499
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      0.986
_refine_ls_R_factor_all          0.1201
_refine_ls_R_factor_gt           0.0564
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0253P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1166
_refine_ls_wR_factor_ref         0.1277
_reflns_number_gt                28323
_reflns_number_total             57499
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4cc08575b2.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/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 2935 2014-11-11 08:27:57Z andrius 

 Adding full bibliography for 7116204--7116205.cif.
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7116204