This paper is part of a special issue dedicated to Professor J. C. (Tito) Scaiano on the occasion of his 60th birthday.
Alkali Ion Exchanged Nafion as a Confining Medium for Photochemical Reactions†
Article first published online: 30 APR 2007
Photochemistry and Photobiology
Volume 82, Issue 1, pages 139–145, January 2006
How to Cite
Arumugam, S., Kaanumalle, L. S. and Ramamurthy, V. (2006), Alkali Ion Exchanged Nafion as a Confining Medium for Photochemical Reactions. Photochemistry and Photobiology, 82: 139–145. doi: 10.1562/2005-05-05-RA-515
- Issue published online: 30 APR 2007
- Article first published online: 30 APR 2007
- Received 5 May 2005; accepted 18 July 2005; published online 22 July 2005
Methanol-swollen Nafion beads were used as microreactors to control the photochemical reaction pathways. Product selectivity in three unimolecular reactions, namely, the photo-Fries rearrangement of naphthyl esters, Norrish Type I reaction of 1-phenyl-3-p-tolyl-propan-2-one and Norrish Type I and Type II reactions of benzoin alkyl ethers were examined. The influence of cations over the photodimerization of acenaphthylene and cross-photodimerization between acenaphthylene and N-benzyl maleimide included within Nafion were also examined. The photochemical behaviors of the above substrates were significantly altered within Nafion compared with their solution photochemistry. Of particular interest, the product distributions were found to depend on the counter cations of Nafion.