Discrimination Between Diastereoisomeric Dipeptides by IR–UV Double Resonance Spectroscopy and Ab Initio Calculations


We studied diastereoisomeric dipeptides, containing two chiral centers, by comparing ab initio calculations with laser desorption jet-cooling experiments. We studied the hetero-dipeptides LL–VF (L-Val-L-Phe) and DL–VF and the homo-dipeptides LL–FF (L-Phe-L-Phe) and LD–FF. Changing one of the chiral centers in each molecule leads to changes in the spectra… (More)


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