13C13C vicinal coupling constants of sulphonium cations
作者:G. Barbarella、P. Dembech
DOI:10.1002/mrc.1270160305
日期:1981.7
AbstractThe 13C13C vicinal coupling constants of cyclic sulphonium cations, with the labelled carbon bound to the positively charged sulphur atom, cannotbe related to the dihedral angle ϕ by a Karplus type correlation.
Stereoelectronic Effects: Perlin Effects in Thiane‐Derived Compounds
作者:Sebastian T. Jung、Luis Basche、Tony Reinsperger、Burkhard Luy、Joachim Podlech
DOI:10.1002/ejoc.202000198
日期:2020.5.22
Equatorial and axial hydrogens in methylene groups of six‐membered rings show differing coupling constants (Perlin effects) dependent on the adjacent functional groups. The coupling constants are influenced by stereoelectroniceffects and by the hybridizations of the carbons.