Electron-Impact Resonances of Anthracene in the Presence of Methanol: Does the Solvent Identity Matter?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F25%3A00637621" target="_blank" >RIV/61388955:_____/25:00637621 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0368454" target="_blank" >https://hdl.handle.net/11104/0368454</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.jpclett.5c01750" target="_blank" >10.1021/acs.jpclett.5c01750</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electron-Impact Resonances of Anthracene in the Presence of Methanol: Does the Solvent Identity Matter?

Popis výsledku v původním jazyce

Electron impact resonances of neutral molecules can be probed using 2D photoelectron spectroscopy of their radical anions, with a core advantage of being able to introduce solvent molecules in a systematic manner through clustering. This approach has been employed previously to probe the effect of water molecules on the resonances of anthracene. Here, we extend this study to probe the resonances of anthracene in the presence of methanol. We find that the nature of the solvent has little impact on the resonances from the perspective of the anion. Only the electron affinity is observed to increase, which corresponds to a concomitant decrease in resonance energy as viewed from a free electron impacting the anthracene-methanol cluster. For a critical cluster size, n<inf>critical</inf>, the lowest resonance becomes a bound state and the mechanism for electron loss switches from a prompt autodetachment process to a statistical thermionic emission process. We posit that the identity of a general solvent molecule only impacts the stabilization of the resonances of anthracene, which in turn affects the overall decay mechanism and n<inf>critical</inf>, but the inherent resonance dynamics of anthracene is unaffected by the solvent.

Název v anglickém jazyce

Electron-Impact Resonances of Anthracene in the Presence of Methanol: Does the Solvent Identity Matter?

Popis výsledku anglicky

Electron impact resonances of neutral molecules can be probed using 2D photoelectron spectroscopy of their radical anions, with a core advantage of being able to introduce solvent molecules in a systematic manner through clustering. This approach has been employed previously to probe the effect of water molecules on the resonances of anthracene. Here, we extend this study to probe the resonances of anthracene in the presence of methanol. We find that the nature of the solvent has little impact on the resonances from the perspective of the anion. Only the electron affinity is observed to increase, which corresponds to a concomitant decrease in resonance energy as viewed from a free electron impacting the anthracene-methanol cluster. For a critical cluster size, n<inf>critical</inf>, the lowest resonance becomes a bound state and the mechanism for electron loss switches from a prompt autodetachment process to a statistical thermionic emission process. We posit that the identity of a general solvent molecule only impacts the stabilization of the resonances of anthracene, which in turn affects the overall decay mechanism and n<inf>critical</inf>, but the inherent resonance dynamics of anthracene is unaffected by the solvent.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/EH22_008%2F0004649" target="_blank" >EH22_008/0004649: Kvantové inženýrství a nanotechnologie</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Physical Chemistry Letters

ISSN

1948-7185

e-ISSN

—

Svazek periodika

16

Číslo periodika v rámci svazku

29

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

7307-7312

Kód UT WoS článku

001527393500001

EID výsledku v databázi Scopus

2-s2.0-105010334846