806-90-6Relevant academic research and scientific papers
Picosecond Dynamics of trans-Stilbene Photodimerization
Peters, Kevin S.,Freilich, Steven C.,Lee, Joseph
, p. 5482 - 5485 (2007/10/02)
Picosecond absorption spectroscopy is used to examine the dynamics of the 2+2 photodimerization reaction of trans-stilbene in benzene.The quenching of the first excited singlet state of trans-stilbene by ground-state trans-stilbene occurs at the diffusion limit, 2.03 * 1010 M-1 s-1.Upon quenching, a new intermediate is formed with a λmax of 480 nm which is characteristic of the charge-transfer species.The rate of the decay of the transient species is (2.40 +/- 0.37) * 109 s-1.The assignment of the transient to the excimer or a biradicaloid species at the pericyclic minimum is discussed.
