Formation of a stannylstannylene via intramolecular carbene addition of a transient stannaacetylene (RSn[triple bond, length as m-dash]CR').
Setaka, Wataru; Hirai, Katsuyuki; Tomioka, Hideo; Sakamoto, Kenkichi; Kira, Mitsuo; Chemical communications (Cambridge, England)  (2008) 6558–6560; doi:10.1039/b814801e

data_7103608
_publ_section_title
;
 Formation of a stannylstannylene via intramolecular carbene addition
 of a transient stannaacetylene (RSn[triple bond, length as
 m-dash]CR').
;
_journal_issue                   48
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              6558
_journal_page_last               6560
_journal_paper_doi               10.1039/b814801e
_journal_year                    2008
_chemical_formula_moiety         'C40 H58 N2 Si Sn'
_chemical_formula_sum            'C40 H58 N2 Si Sn'
_chemical_formula_weight         713.66
_chemical_name_common            diazomethylstannylene
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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                83.444(5)
_cell_angle_beta                 82.344(6)
_cell_angle_gamma                62.356(5)
_cell_formula_units_Z            2
_cell_length_a                   10.155(3)
_cell_length_b                   10.299(3)
_cell_length_c                   21.771(6)
_cell_measurement_temperature    120(2)
_cell_volume                     1995.5(10)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_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  0.0576
_diffrn_reflns_av_sigmaI/netI    0.0814
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            10473
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.05
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    0.697
_exptl_absorpt_correction_T_max  0.8181
_exptl_absorpt_correction_T_min  0.7679
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_density_diffrn    1.188
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         1.736
_refine_diff_density_min         -1.192
_refine_diff_density_rms         0.136
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.141
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     416
_refine_ls_number_reflns         6943
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.141
_refine_ls_R_factor_all          0.0985
_refine_ls_R_factor_gt           0.0766
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1033P)^2^+4.1975P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1953
_refine_ls_wR_factor_ref         0.2056
_reflns_number_gt                5479
_reflns_number_total             6943
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b814801e.txt
_cod_data_source_block           sn
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7103608