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Structural properties of DNO investigated with pyrene excimer formation
J Reynisson1, L Vejby-Christensen, R Wilbrandt
1Condensed Matter Physics and Chemistry Department, The Danish Polymer Centre, Risø National Laboratory, Roskilde, Denmark.
Abstract:
Four diamino acid-Nalpha-substituted oligopeptide (DNO) oligomers substituted with pyrenyl as photophysical probes were synthesized. The excimer formation and ground-state association of the pyrenyl groups were investigated by means of absorption and steady-state fluorescence spectroscopy together with time-resolved fluorescence techniques. The photophysical parameters obtained from the different derivatives reflect the secondary structural properties of the DNO backbones.