Luminescence and morphological behaviour of the aromatic dipeptide pair having singular structural variability.

In the present manuscript, the luminescence and the self-assembly behaviour of two aromatic dipeptides with a singular structure variable are investigated. The terminally protected dipeptides tryptophan-tyrosine (WY p ) and tryptophan-phenylalanine (WF p ) were synthesized using a standard solution phase procedure. Significant solvatochromic effect was observed for both the dipeptidyl entities; whilst the influence was more pronounced for the WY p entity when compared with WF p . Interesting morphological variation was observed for WF p and WY p , in which discrete and interconnected nanospheres were observed for the respective dipeptides. The results obtained signify the influence of the singular structural variation on modulating the overall functional behaviour of the short peptides motifs.