Structure of 1,4-dichloro-1,4-bis(perfluoroalkyl)-1,3-diazatetra-1, 3-dienes from their13C,19F, and15N NMR spectra
摘要:
Previously unknown 1,4-dichloro-1,4-bis(perfluoroalkyl)-1,3-diazatetra-1,3-dienes. have been prepared and shown to be mixtures of isomers of Z and E configurations. The structures have been identified and a quantitative estimate made of the ratio of Z and E isomers using C-13, F-19, and N-15 NMR spectroscopy.