What does it take to stabilize a naphthalene anion?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F24%3A00598619" target="_blank" >RIV/61388955:_____/24:00598619 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0356226" target="_blank" >https://hdl.handle.net/11104/0356226</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0230131" target="_blank" >10.1063/5.0230131</a>
Alternative languages
Result language
angličtina
Original language name
What does it take to stabilize a naphthalene anion?
Original language description
We investigate attachment of slow electrons (0-10 eV) to naphthalene (Np) clusters in a crossed beam experiment. Supersonic expansions under different conditions using different buffer gases generate the clusters: in He, Ne, and low pressure Ar, neat (Np)N clusters are formed, while we also observe mixed clusters of naphthalene with rare-gas atoms in co-expansion with Ar above 0.5 bar and with Kr. Negatively charged (Np)n- and Rgm(Np)n- (Rg = Ar, Kr) clusters are analyzed by mass spectrometry, and electron energy dependent ion yields are measured. We show that the smallest stable naphthalene complex with an excess electron, the dimer (Np)2- anion, cannot be formed in a binary collision of a free electron with (Np)2 dimer, nor with (Np)3 trimer. Evaporation of a weakly bound Ar atom(s) from a mixed ArM(Np)2 cluster following electron attachment leads to the dimer (Np)2- anion. Larger (Np)n-, n > 3, transient cluster anions decay via evaporation of an Np unit on a timescale of tens of microseconds. The self-scavenging process opens around 6 eV, where a naphthalene unit is electronically excited by the incoming electron, which is slowed down and trapped. However, the transient negative ion is efficiently stabilized only in the mixed clusters, from which Ar atom(s) can be evaporated. © 2024 Author(s). Published under an exclusive license by AIP Publishing.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Chemical Physics
ISSN
0021-9606
e-ISSN
1089-7690
Volume of the periodical
161
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
124303
UT code for WoS article
001321202500004
EID of the result in the Scopus database
2-s2.0-85204781152