Translator Disclaimer
1 September 2006 Photoinduced Processes in Dipyrrolyl-Perfluoro-Cyclopentenes
Author Affiliations +
Abstract

The photobehavior of five photochromic dipyrrolyl-perfluoro-cyclopentenes was studied by steady state and time-resolved absorption spectroscopy. The quantum yields of the UV-photoinduced ring-closing reaction (coloration) and the visible-stimulated cycloreversion reaction (bleaching) were measured. Kinetic and thermodynamic parameters of thermal bleaching were also determined. Nanosecond time-resolved experiments showed formation of a transient, which was not a precursor of the reaction photoproduct. This transient was tentatively assigned to a radical cation formed by direct photoionization through a short-lived triplet state. The nature of the transient species was supported by photoinduced electron transfer to electron acceptors.

Fausto Ortica, Paola Smimmo, Ugo Mazzucato, Gianna Favaro, Arnault Heynderickx, Corinne Moustrou, and André Samat "Photoinduced Processes in Dipyrrolyl-Perfluoro-Cyclopentenes," Photochemistry and Photobiology 82(5), 1326-1333, (1 September 2006). https://doi.org/10.1562/2006-04-14-RA-873
Received: 14 April 2006; Accepted: 11 June 2006; Published: 1 September 2006
JOURNAL ARTICLE
8 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top