J. S. Raaj Vellore Winfred

Transient Absorption Spectroscopy of the Stilbenes in Methanol─Adiabatic cis→ trans Photoisomerization by Sequential Two-Photon Excitation

Abstract Femtosecond pulse excitation gave the time evolution of the transient absorption spectra (TAS) of trans- and cis-stilbene (t- and c-St) in methanol. Global analysis of t-St TAS gives the spectrum of the singlet excited state of t-St, 1t*, with a lifetime, 46 ps, consiste...