1H NMR and UV-Vis spectroscopy of fluorine and chlorine substituted stilbenes: Conformational studies

Ágúst Kvaran*, Benedikt I. Ásgeirsson and Jón K.F. Geirsson
Science Institute, University of Iceland,  Dunhaga 3, 107 Reykjavík, Iceland




Abstract

 UV-Vis and 1H NMR spectroscopic studies supported by molecular mechanics calculations reveal planar structure for the lowest energy conformations  of a series of fluorine and chlorine substituted trans-stilbenes.