Effect of Incremental Hydration on Reverse Internal Conversion Vibrational Autodetachment of an Anion

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F25%3A00638968" target="_blank" >RIV/61388955:_____/25:00638968 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0370030" target="_blank" >https://hdl.handle.net/11104/0370030</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/zfxx-8r4x" target="_blank" >10.1103/zfxx-8r4x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Incremental Hydration on Reverse Internal Conversion Vibrational Autodetachment of an Anion

Popis výsledku v původním jazyce

The recently discovered mechanism of reverse internal conversion vibrational autodetachment (RICVAD), by which an excess electron is emitted at specific energies from an isolated hot ground state anion, is mediated by the statistical population of a dipole-bound state. Here, we consider how this process is influenced by the presence of up to two water molecules. Using anion photoelectron imaging of the nitrobenzene radical anion, NB-, clustered to water molecules, we find that RICVAD remains active for NB-(H2O)1. However, we also find that an additional decay channel opens at higher photoexcitation energies, which arises from dissociation of the cluster upon accessing an electronic resonance of NB-(H2O)1, forming hot isolated NB-, which then undergoes RICVAD. NB-(H2O)2 also shows evidence of RICVAD, but its signatures are obscured by other low energy electron signal. Our work shows that the RICVAD mechanism remains possible in a complex environment and shows how resonance dynamics are influenced by hydration.

Název v anglickém jazyce

Effect of Incremental Hydration on Reverse Internal Conversion Vibrational Autodetachment of an Anion

Popis výsledku anglicky

The recently discovered mechanism of reverse internal conversion vibrational autodetachment (RICVAD), by which an excess electron is emitted at specific energies from an isolated hot ground state anion, is mediated by the statistical population of a dipole-bound state. Here, we consider how this process is influenced by the presence of up to two water molecules. Using anion photoelectron imaging of the nitrobenzene radical anion, NB-, clustered to water molecules, we find that RICVAD remains active for NB-(H2O)1. However, we also find that an additional decay channel opens at higher photoexcitation energies, which arises from dissociation of the cluster upon accessing an electronic resonance of NB-(H2O)1, forming hot isolated NB-, which then undergoes RICVAD. NB-(H2O)2 also shows evidence of RICVAD, but its signatures are obscured by other low energy electron signal. Our work shows that the RICVAD mechanism remains possible in a complex environment and shows how resonance dynamics are influenced by hydration.

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

Physical Review Letters

ISSN

0031-9007

e-ISSN

1079-7114

Svazek periodika

135

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

103001

Kód UT WoS článku

001566317300009

EID výsledku v databázi Scopus

2-s2.0-105016768327