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

Raja Kaliappan, V. Ramamurthy

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)32-37
Number of pages6
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume207
Issue number1
DOIs
StatePublished - Sep 5 2009

Keywords

  • Benzoin ethers
  • Calixarenes
  • Conformational control
  • Norrish Type I
  • Norrish Type II

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Physics and Astronomy(all)

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