Surface plasmons can provide a novel route to induce and simultaneously monitor selective bond formation and breakage. Here pH-induced protonation, followed by plasmon-induced deprotonation of 2-mercaptopyridine was investigated using surface- and tip-enhanced Raman scattering (SERS and TERS). A large difference in the deprotonation rate between SERS and TERS will be demonstrated and discussed with respect to hot-spot distribution.
P. Singh, T. Deckert-Gaudig, Z. Zhang and V. Deckert, Analyst, 2020, 145, 2106 DOI: 10.1039/C9AN01970G
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