Application of a Spin-Labeled Spin-Trap to the Detection of Nitric Oxide (NO)

Abstract

Sensitive detection of reaction products is a potential use of diradicals as spin-labeled spin-traps. When diradical 1 reacts with NO, the EPR spectrum not only changes from a single broad line to a three-line spectrum, but the apparent intensity of the monoradical products, such as 2, is more than 500 times greater than that of the original diradical.