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arXiv · 1902.06974

Gas-phase structural isomer identification by Coulomb explosion of aligned molecules

Michael Burt·Kasra Amini·Jason W. L. Lee·Lars Christiansen·Rasmus R. Johansen·Yuki Kobayashi·James D. Pickering·Claire Vallance·Mark Brouard·Henrik Stapelfeldt
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Abstract

The gas-phase structures of four difluoroiodobenzene and two dihydroxybromobenzene isomers were identified by correlating the emission angles of atomic fragment ions created following femtosecond laser-induced Coulomb explosion. The structural determinations were facilitated by confining the most polarizable axis of each molecule to the detection plane prior to the Coulomb explosion event using one-dimensional laser-induced adiabatic alignment. For a molecular target consisting of two difluoroiodobenzene isomers, each constituent structure could additionally be singled out and distinguished.

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Michael Burt, Kasra Amini, Jason W. L. Lee, Lars Christiansen, Rasmus R. Johansen, Yuki Kobayashi, James D. Pickering, Claire Vallance, Mark Brouard, Henrik Stapelfeldt. 2019-02-19. Gas-phase structural isomer identification by Coulomb explosion of aligned molecules. https://doi.org/10.1063/1.5023441

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