Structural and Spectroscopic Characterization of Tin‒Tin Double Bonds in Cyclic Distannenes
Henning, Jens; Eichele, Klaus; Fink, Reinhold F.; Wesemann, Lars; Organometallics 33 (2014) 3904–; doi:10.1021/om500645b

data_4083971
_publ_section_title
;
 Structural and Spectroscopic Characterization of Tin--Tin Double Bonds in
 Cyclic Distannenes
;
_journal_issue                   14
_journal_name_full               Organometallics
_journal_page_first              3904
_journal_paper_doi               10.1021/om500645b
_journal_volume                  33
_journal_year                    2014
_chemical_formula_moiety         'C82 H104 Sn2, C6 H18 O Si2'
_chemical_formula_sum            'C88 H122 O Si2 Sn2'
_chemical_formula_weight         1489.42
_chemical_name_systematic
; 
 ? 
;
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                77.9082(7)
_cell_angle_beta                 85.5830(7)
_cell_angle_gamma                76.5304(8)
_cell_formula_units_Z            2
_cell_length_a                   13.3504(4)
_cell_length_b                   17.0668(5)
_cell_length_c                   18.9247(5)
_cell_measurement_reflns_used    385
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.4061
_cell_measurement_theta_min      2.5217
_cell_volume                     4098.5(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD Duo'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'Bruker Triump'
_diffrn_radiation_source         microsource
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0486
_diffrn_reflns_av_sigmaI/netI    0.0494
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            64887
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         1.25
_exptl_absorpt_coefficient_mu    0.681
_exptl_absorpt_correction_T_max  0.97
_exptl_absorpt_correction_T_min  0.91
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SADABS V2012/1 (Bruker AXS Inc.)'
_exptl_crystal_colour            purple-orange
_exptl_crystal_density_diffrn    1.207
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1572
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.734
_refine_diff_density_min         -0.612
_refine_diff_density_rms         0.080
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.009
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     882
_refine_ls_number_reflns         16758
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.009
_refine_ls_R_factor_all          0.0548
_refine_ls_R_factor_gt           0.0335
_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^)+(0.0312P)^2^+2.6618P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0690
_refine_ls_wR_factor_ref         0.0759
_reflns_number_gt                12999
_reflns_number_total             16758
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om500645b_si_002.cif
_cod_data_source_block           distannene4
_cod_depositor_comments
'Adding full bibliography for 4083969--4083976.cif.'
_cod_database_code               4083971