Stabilization of benzene radical anion in ammonia clusters

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F22%3A00564249" target="_blank" >RIV/61388955:_____/22:00564249 - isvavai.cz</a>

Result on the web

<a href="https://hdl.handle.net/11104/0335952" target="_blank" >https://hdl.handle.net/11104/0335952</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/D2CP02979K" target="_blank" >10.1039/D2CP02979K</a>

Result language

angličtina

Original language name

Stabilization of benzene radical anion in ammonia clusters

Original language description

We investigate electron attachment to large ammonia clusters doped with a single benzene (Bz) molecule (NH3)N·Bz, [N with combining macron] ≈ 320. Negatively charged clusters are probed by mass spectrometry, and the energy-dependent ion yields are derived from mass spectra measured at different electron energies. The ion efficiency curves of pure ammonia clusters exhibit two maxima. At around 6 eV, (NH3)n−1NH2− ions are produced via dissociative electron attachment (DEA) to NH3 molecules. (NH3)n− ions produced at this energy are formed by DEA followed by fragment caging. At low energies around 1.3 eV, only (NH3)n− ions are formed for cluster sizes n ≥ 35 that correspond to solvated electrons in ammonia clusters. The doped (NH3)n·Bz− cluster ions exhibit essentially the same energy dependence. The (NH3)n·Bz− ions are metastable and evaporate NH3 molecule(s), while pure (NH3)n− ions are stable. The lifetime for NH3 molecule evaporation from the Bz-doped clusters was estimated as τ ≈ 18 μs. We interpret the metastability of the doped clusters by the charge localization on a Bz− ion solvated in the ammonia, which is accompanied by an energy release leading to the evaporation of NH3 molecule(s).n

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10403 - Physical chemistry

Project

<a href="/en/project/GA21-07062S" target="_blank" >GA21-07062S: Clusters of PAHs in Laboratory Research of Astrochemical and Atmospherical Processes</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

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

Name of the periodical

Physical Chemistry Chemical Physics

ISSN

1463-9076

e-ISSN

1463-9084

Volume of the periodical

24

Issue of the periodical within the volume

44

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

27128-27135

UT code for WoS article

000880786200001

EID of the result in the Scopus database

2-s2.0-85142272285