Tracking The Photoionization Of Aniline In Water: The Role Of Πσ* States

Longarte, Asier

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https://hdl.handle.net/2142/116969 Copy

Description

Title

Tracking The Photoionization Of Aniline In Water: The Role Of Πσ* States

Author(s)

Longarte, Asier

Contributor(s)

• Lamas, Iker
• Montero, Raúl

Issue Date

2022-06-20

Keyword(s)

Mini-symposium: Spectroscopy meets Chemical Dynamics

Abstract

\begin{wrapfigure}{r}{0pt} \includegraphics[scale=0.3]{Abstract Figurec.eps} \end{wrapfigure} The dynamics of aniline in water, after excitation along its lowest energy absorption (267 nm), has been investigated, from the femto (fs) to the nanoseconds (ns) scale, by pump-probe broadband transient absorption (TA) methods. The complex prompt TA spectrum, which evolves over the fs to ns scales, is analyzed by using a pump-repump-probe scheme that permits to interrogate the nature of the contributing species. The results permit us to identify, in addition to the long-living $\pi$$\pi$$^{*}$ state responsible of the fluorescence, the formation of a charge transfer to solvent state (CTTS) that will autoionize to form the fully solvated cation and electron. The nature of this CTTS state is discussed in terms of the 3s/$\pi$$\sigma$$^{*}$ state characterized in the gas phase\footnote{J. O. F. Thompson \textit{et al.} \textit{J. Chem. Phys.} \textbf{142}, 114309 (2015); doi:10.1063/1.4914330}and the specific water-solute interactions established.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Handle URL

https://hdl.handle.net/2142/116969

DOI

https://doi.org/10.15278/isms.2022.MH08

Copyright and License Information

Copyright 2022 held by the authors

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