The structure of 5-aza-2,8-dioxa-1-stanna(II)bicyclo[3.3.0]octane

Zusammenfassung

From the1H,13C, and119Sn NMR spectra at different temperatures, it is concluded that the 5-alkyl-5-aza-2,8-dioxa-1-stanna(II)bicyclo[3.3.0]octanes dimerize in nonpolar solvents. The barrier for dimerization is lower (G =40 kJ/mol) than the barrier for simultaneous dissociation-inversion (G =70 kJ/mol). The dimers studied are sterically uniform.