Recent Publications

Unexpected solvent isotope effect on the triplet lifetime of Methylene Blue associated to Cucurbit[7]uri

E.I. Alarcón, María González-Béjar, P. Montes-Navajas, H. Garcia, E. A. Lissi and J. C. Scaiano, “Unexpected solvent isotope effect on the triplet lifetime of Methylene Blue associated to Cucurbit[7]uril”, Photochem. Photobiol. Sci. 11(2), 269-273 (2012). Feb 2012.

Unexpected solvent isotope effect on the triplet lifetime of Methylene Blue associated to Cucurbit[7]uri

Methylene blue shows an isotope dependent triplet lifetime that is 50% longer in D2O compared with H2O as a result of electronic-to-vibrational relaxation. The effect is enhanced when the dye is bound to curcubit[7]uril due to a combination of restricted mobility and a unfavorable vibrational coupling.
http://pubs.rsc.org/en/content/articlelanding/2012/pp/c1pp05227f