Controlling photoreactions with confinement: photochemistry of benzoin alkyl ethers within water soluble p-sulfonato calix[n]arenes

Kaliappan, Raja ; Ramamurthy, V. (2009) Controlling photoreactions with confinement: photochemistry of benzoin alkyl ethers within water soluble p-sulfonato calix[n]arenes Journal of Photochemistry and Photobiology A: Chemistry, 207 (1). pp. 32-37. ISSN 1010-6030

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.jphotochem.2008.10.004

Abstract

This publication pertains to the exploration of supramolecular assemblies to control excited state chemistry. One of our long-range scientific goals is to develop, on the basis of well-established rules of molecular organic photochemistry and supramolecular chemistry, a model to predict the photobehavior of organic molecules in restricted spaces, in general. We present the results of our studies on the photochemistry of benzoin alkyl ethers included within calixarenes in water. While in isotropic solution benzoin alkyl ethers yield products of Norrish Type I reaction, as guest-host complex with calixarenes they preferentially yield products of Norrish Type II reaction. The current observation suggests that rules of physical organic chemistry and photochemistry developed based on solution chemistry cannot be simply extended to supramolecular assemblies.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Norrish Type I; Norrish Type Ii; Calixarenes; Conformational Control; Benzoin Ethers
ID Code:90037
Deposited On:04 May 2012 05:21
Last Modified:04 May 2012 05:21

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