C-13-NMR ANALYSIS OF CAVA-POLY(ISOTHIANAPHTHENE) OLIGOMERS

Abstract

A C-13 NMR analysis of disilylated oligomers (n = 1-4) of isothianaphthene has been performed. The evolution of the chemical shift of the central carbon atoms as a function of chain length shows that the trimer and tetramer can be used as model compounds for the corresponding polymer. These data are significantly different in comparison to the solid state C-13 chemical shifts of 'Wudl'-poly(isothianaphthene).