Journal article

Hydroxyl Radicals via Collision-Induced Dissociation of Trimethylammonium Benzyl Alcohols

Peter W Moore, Jordan P Hooker, Athanasios Zavras, George N Khairallah, Elizabeth H Krenske, Paul V Bernhardt, Gina Quach, Evan G Moore, Richard AJ O'Hair, Craig M Williams

Australian Journal of Chemistry | CSIRO Publishing | Published : 2017


The hydroxyl radical is a well known reactive oxygen species important for interstellar, atmospheric, and combustion chemistry in addition to multiple biochemical processes. Although there are many methods to generate the hydroxyl radical, most of these are inorganic based, with only a few originating from organic precursor molecules. Reported herein is the observation that trimethylammonium benzyl alcohols and their corresponding deuterated isotopologues act as a good source of hydroxyl and deuteroxyl radicals in the gas-phase under collision-induced dissociation (CID) conditions. Attempts to replicate this chemistry in the condensed phase are described.


Awarded by University of Queensland

Awarded by ARC

Funding Acknowledgements

The authors thank Mr Timothy J. Zerk for assistance with cyclic voltammetry. Financial support by the University of Queensland, the University of Melbourne, and the Australian Research Council (ARC) is gratefully acknowledged. E.H.K. (FT120100632), C.M.W. (FT110100851) and E.G.M. (FT100100795) gratefully acknowledge the ARC for Future Fellowship awards. P.W.M. is grateful for an Australian Postgraduate Award. Nanosecond Flash Photolysis measurements were undertaken at the Photochemistry and Ultrafast Laser Spectroscopy (PULSE) facility, School of Chemistry and Molecular Biosciences, established with financial support by the University of Queensland (MEI-2013000106). We thank the National Computational Infrastructure National Facility for computer time.