Issue 7, 2024

Dynamics of dissociative electron attachment to aliphatic thiols

Abstract

Dissociative electron attachment (DEA) shows functional group-dependent site selectivity in H ion channels. In this context, thiol functional groups have yet to be studied in great detail, although they carry importance in radiation damage studies where low-energy secondary electrons are known to induce damage through the DEA process. In this context, we report detailed measurements of absolute cross-sections and momentum images of various anion fragments formed in the DEA process in simple aliphatic thiols. We also compare the observed dynamics with that reported earlier in hydrogen sulphide, the precursor molecule for this functional group, and with that in aliphatic alcohols. Our findings show substantial resemblance in the underlying dynamics in these compounds and point to a possible generalisation of these features in the DEA to thiols. In addition, we identify various pathways that contribute to the S and SH channels.

Graphical abstract: Dynamics of dissociative electron attachment to aliphatic thiols

Article information

Article type
Paper
Submitted
10 nov 2023
Accepted
03 jan 2024
First published
04 jan 2024

Phys. Chem. Chem. Phys., 2024,26, 5793-5801

Dynamics of dissociative electron attachment to aliphatic thiols

S. Das and V. S. Prabhudesai, Phys. Chem. Chem. Phys., 2024, 26, 5793 DOI: 10.1039/D3CP05456J

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