Linear response of multiphoton reaction: Three-photon Cycloreversion of anthracene biplanemer in solution by intense femtosecond laser pulses

Tomoyuki Yatsuhashi, Yuki Nakahagi, Hideki Okamoto, Nobuaki Nakashima

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The photocycloreversion of anthracene photodimers and biplanemer in solution was investigated by nonresonant intense femtosecond laser pulses. Cycloreversion of biplanemer showed a pseudolinear response to laser intensity whereas the formation of anthracene from photodimer was proportional to the cubic of laser intensity. The unusual intensity dependence of biplanemer was explained in terms of the sum of three-photon intramolecular cycloreversion and the recovery of reactant by a two-photon intramolecular cyclodimerization. The coexistence of high- and low-order multiphoton processes within the same laser pulse originated in the spatial distribution of the laser intensity. We observed white light emerging from the sample solution; however, the effect of solvated electrons was not observed in the present system. The saturation of both the photoreaction and white light due to a volume effect was observed at high intensity.

Original languageEnglish
Pages (from-to)10475-10480
Number of pages6
JournalJournal of Physical Chemistry A
Volume114
Issue number39
DOIs
Publication statusPublished - Oct 7 2010

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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