• R S H Liu

      Articles written in Journal of Chemical Sciences

    • Spectroscopic properties of molecules related to hindered isomers of retinal

      V Ramamurthy R S H Liu

      More Details Abstract Fulltext PDF

      Proton and12C NMR study of molecules related to retinal has been carried out. The characteristic differences in spectral behaviour among 7-trans and 7-cis isomers have been established which would be useful in determining the structure of new isomers and identifying components in a mixture. Through coupling constant measurements and DNMR study it is clearly established that 7-cis isomers of β-ionyl derivatives and in turn 7-cis isomers of retinyl derivatives prefer a non-planar arrangement and this non-planarity brings about resonance destabilisation.

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