Partial double bond character in chalcogen compounds of stanna-closo-dodecaborate
Kirchmann, Marius; Gädt, Torben; Schappacher, Falko M.; Pöttgen, Rainer; Weigend, Florian; Wesemann, Lars; Dalton Transactions  (2009) 1055–1062; doi:10.1039/b814936d

data_7030629
_publ_section_title
;
 Partial double bond character in chalcogen compounds of
 stanna-closo-dodecaborate
;
_journal_coden_ASTM              DTARAF
_journal_issue                   6
_journal_name_full               'Dalton Transactions'
_journal_page_first              1055
_journal_page_last               1062
_journal_paper_doi               10.1039/b814936d
_journal_year                    2009
_chemical_formula_moiety         '2(C7 H18 N), B11 H11 Se Sn, C2 H3 N'
_chemical_formula_sum            'C16 H50 B11 N3 Se Sn'
_chemical_formula_weight         601.15
_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                 92.342(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.3974(7)
_cell_length_b                   14.1165(5)
_cell_length_c                   16.2152(8)
_cell_measurement_temperature    173(2)
_cell_volume                     3064.1(2)
_computing_cell_refinement       'Stoe X-Area 1.26'
_computing_data_collection       'Stoe X-Area 1.26'
_computing_data_reduction        'SToe X-Area 1.26'
_computing_molecular_graphics    'ORTEP 3'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'Stoe IPDS 2T'
_diffrn_measurement_method       \w-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  0.1046
_diffrn_reflns_av_sigmaI/netI    0.0556
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            31458
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         5.73
_exptl_absorpt_coefficient_mu    2.032
_exptl_absorpt_correction_T_max  0.8554
_exptl_absorpt_correction_T_min  0.5476
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'Stoe X-Red, X-Shape'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.303
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       bloc
_exptl_crystal_F_000             1224
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.1
_refine_diff_density_max         1.511
_refine_diff_density_min         -1.366
_refine_diff_density_rms         0.103
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.181
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     278
_refine_ls_number_reflns         5521
_refine_ls_number_restraints     28
_refine_ls_restrained_S_all      1.204
_refine_ls_R_factor_all          0.1002
_refine_ls_R_factor_gt           0.0719
_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^)+(0.0208P)^2^+15.9064P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1224
_refine_ls_wR_factor_ref         0.1320
_reflns_number_gt                4231
_reflns_number_total             5521
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             7000441
_cod_data_source_file            b814936d.txt
_cod_data_source_block           compound4
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7030629