Direct observation and kinetics of a hydroperoxyalkyl radical (QOOH)

Savee, John D.; Papajak, Ewa; Rotavera, Brandon; Huang, Haifeng; Eskola, Arkke J.; Welz, Oliver; Sheps, Leonid; Taatjes, Craig A.; Zádor, Judit; Osborn, David L.

doi:10.1126/science.aaa1495

Direct observation and kinetics of a hydroperoxyalkyl radical (QOOH)

Journal Article · Thu Feb 05 23:00:00 EST 2015 · Science

DOI:https://doi.org/10.1126/science.aaa1495· OSTI ID:1353295

Savee, John D. ^[1]; Papajak, Ewa ^[1]; Rotavera, Brandon ^[1]; Huang, Haifeng ^[1]; Eskola, Arkke J. ^[1]; Welz, Oliver ^[1]; Sheps, Leonid ^[1]; Taatjes, Craig A. ^[1]; Zádor, Judit ^[1]; Osborn, David L. ^[1]

Combustion Research Facility, Mail Stop 9055, Sandia National Laboratories, Livermore, CA 94551-0969, USA.

Catching a glimpse of the elusive QOOH

It's straightforward to write down the net combustion reaction: Oxygen reacts with hydrocarbons to form water and carbon dioxide. The details of how all the bonds break and form in succession are a great deal more complicated. Savee et al. now report direct detection of a long-postulated piece of the puzzle, a so-called QOOH intermediate. This structure results from bound oxygen stripping a hydrogen atom from carbon, leaving a carbon-centered radical behind. The study explores the influence of the hydrocarbon's unsaturation on the stability of QOOH, which has implications for both combustion and tropospheric oxidation chemistry.

Science , this issue p. 643

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Sponsoring Organization:: USDOE

OSTI ID:: 1353295

Journal Information:: Science, Journal Name: Science Journal Issue: 6222 Vol. 347; ISSN 0036-8075

Publisher:: American Association for the Advancement of Science (AAAS)Copyright Statement

Country of Publication:: United States

Language:: English

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