Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 9 February 2007:
Vol. 315. no. 5813, p. 733
DOI: 10.1126/science.315.5813.733m
Prev | Table of Contents | Next

This Week in Science

The iron(V) oxo motif has long been postulated as a highly reactive intermediate in a variety of enzymatic oxidations, as well as certain Fe/H2O2 systems used for oxidative waste remediation. Tiago de Oliveira et al. (p. 835, published online 21 December) find that this elusive species can be stabilized at low-temperature upon treatment of a tetraamido-coordinated Fe center with m-chloroperbenzoic acid. The complex persists for hours at -60°C, and was characterized spectroscopically and analyzed by density functional theory calculations. Both theory and experiment support a low-spin electronic configuration. The compound cleanly transfers oxygen to triphenylphosphine, as evidenced by an isotopic labeling study.




To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)