Thursday, January 19, 2012

ALS Used for Groundbreaking Work on Criegee Intermediates


More than 60 years ago, chemist Rudolf Criegee proposed a novel chemical pathway for destruction of alkenes in earth’s atmosphere, via reaction with ozone, a key pollutant in the troposphere. Although much indirect evidence supports Criegee’s mechanism, breakthrough research published in Science magazine provides direct measurements of reactions of a gas-phase Criegee intermediate using photoionization mass spectrometry. Chemists from Sandia National Lab, the University of Manchester, and Bristol University used tunable synchrotron radiation from the Advanced Light Source on Beamline 9.0.2 to make this advance. Former ALS User Executive Committee Chair David Osborn is one of the principle investigators on this paper. More> Best Blogger Tips

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