1.
J Phys Chem A
; 123(42): 9102-9112, 2019 Oct 24.
Artículo
en Inglés
| MEDLINE
| ID: mdl-31557030
RESUMEN
Diffusional quenching in isopentane (IP) glass at 77 K is demonstrated by the reduction of triphenylene phosphorescence lifetimes in the presence of 1,3-pentadiene and/or molecular oxygen. Fluorescence spectra and lifetimes of cis- and trans-1,2-di(1-methyl-2-naphthyl)ethene in IP glass at 77 K reveal that the cis â trans photoisomerization leads to the trapping of unstable conformers of the trans isomer. The claim that IP at 77 K is not sufficiently viscous to trap unstable photoproduct conformers is invalidated.