Issue 6, 2007

Analysis of the time-resolved FTIR spectra produced by the photolysis of alkyl phenylglyoxylates

Abstract

The photochemistry of alkyl phenylglyoxylates (APG) was further investigated using time-resolved infrared spectroscopy. The primary focus was on the analysis of weak transient bands around 1828 and 1730 cm−1 in the time-resolved FTIR spectra of glyoxylates. The observed transients were assigned to benzoyl and alkyl mandelate ester radicals, respectively. The formation of benzoyl radical was fast and attributed to the Norrish Type I process. In addition, the intensities of the strong FTIR bands around 1680 and 2100 cm−1 were used to analyze the yields of the triplet state and ketene, respectively. These new and previous data on APG photochemistry are discussed in relation to the acrylate polymerization photoinitiation by alkyl phenylglyoxylates.

Graphical abstract: Analysis of the time-resolved FTIR spectra produced by the photolysis of alkyl phenylglyoxylates

Supplementary files

Article information

Article type
Paper
Submitted
16 Oct 2006
Accepted
21 Mar 2007
First published
18 Apr 2007

Photochem. Photobiol. Sci., 2007,6, 608-613

Analysis of the time-resolved FTIR spectra produced by the photolysis of alkyl phenylglyoxylates

A. G. Merzlikine, S. V. Voskresensky, E. O. Danilov, D. C. Neckers and A. V. Fedorov, Photochem. Photobiol. Sci., 2007, 6, 608 DOI: 10.1039/B614792E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements