Superbase Route to Supertetrahedral Chalcogenide Clusters
Tao Wu; Xianhui Bu; Puhong Liao; Le Wang; Shou-Tian Zheng; Richard Ma; Pingyun Feng; Journal of the American Chemical Society 134 (2012) 3619–3622; doi:10.1021/ja210039u

data_4117537
_publ_section_title
;
 Superbase Route to Supertetrahedral Chalcogenide Clusters
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3619
_journal_page_last               3622
_journal_paper_doi               10.1021/ja210039u
_journal_volume                  134
_journal_year                    2012
_chemical_formula_moiety         'C28 H48 Cd4 In16 N8 S31'
_chemical_formula_sum            'C28 H48 Cd4 In16 N8 S31'
_chemical_formula_weight         3777.32
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 114.1350(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.3156(4)
_cell_length_b                   32.7633(8)
_cell_length_c                   23.1691(5)
_cell_measurement_temperature    150(2)
_cell_volume                     13380.7(5)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    XP
_computing_publication_material  XCIF
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker Smart Apex CCD'
_diffrn_measurement_method       'Omega 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  0.0962
_diffrn_reflns_av_sigmaI/netI    0.0775
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            41302
_diffrn_reflns_theta_full        17.50
_diffrn_reflns_theta_max         17.50
_diffrn_reflns_theta_min         1.16
_exptl_absorpt_coefficient_mu    3.820
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.875
_exptl_crystal_description       plate
_exptl_crystal_F_000             6976
_refine_diff_density_max         2.496
_refine_diff_density_min         -0.737
_refine_diff_density_rms         0.285
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     604
_refine_ls_number_reflns         8469
_refine_ls_number_restraints     32
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.1603
_refine_ls_R_factor_gt           0.0851
_refine_ls_shift/su_max          0.240
_refine_ls_shift/su_mean         0.005
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1677P)^2^+794.9025P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2769
_refine_ls_wR_factor_ref         0.3445
_reflns_number_gt                4194
_reflns_number_total             8469
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja210039u_si_002_4.cif
_cod_data_source_block           ISC-4
_cod_database_code               4117537