Energy Transfer in Microhydrated Uracil, 5-Fluorouracil, and 5-Bromouracil
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F17%3A43914365" target="_blank" >RIV/60461373:22340/17:43914365 - isvavai.cz</a>
Alternative codes found
RIV/61388955:_____/17:00479593
Result on the web
<a href="https://pubs.acs.org/doi/abs/10.1021/acs.jpcb.7b07390" target="_blank" >https://pubs.acs.org/doi/abs/10.1021/acs.jpcb.7b07390</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jpcb.7b07390" target="_blank" >10.1021/acs.jpcb.7b07390</a>
Alternative languages
Result language
angličtina
Original language name
Energy Transfer in Microhydrated Uracil, 5-Fluorouracil, and 5-Bromouracil
Original language description
Experiment and theory are combined to study the interaction of low energy electrons with microhydrated uracil and its halogenated analogues 5-fluorouracil and 5-bromouracil. We report electron ionization (EI) and electron attachment (EA) mass spectra for the uracils with different degrees of hydration. Both EI and EA lead to evaporation of water molecules. The number of evaporated molecules serves as a measure of the energy transferred to the solvent. Upon EI, the amount of energy transferred to neighboring water molecules is similar for all three studied species. On the other hand, the energy transferred upon EA rises significantly from uracil to, 5-fluorouracil and 5-bromouracil. 5-Bromouracil is the only studied molecule that undergoes dissociative electron attachment after hydration at the studied energy of 1.2 eV. Theoretical modeling of the energetics for the electron attachment process Allows for setting the energy transferred to the solvent on the absolute scale. We discuss the importance of this energy for the radiosensitization.
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
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/GA17-04068S" target="_blank" >GA17-04068S: Molecular Clusters as Unique Nano-reactors: Controlling Chemistry with Photons and Electrons</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
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 Physical Chemistry B
ISSN
1520-6106
e-ISSN
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Volume of the periodical
121
Issue of the periodical within the volume
38
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
8965-8974
UT code for WoS article
000412150700010
EID of the result in the Scopus database
2-s2.0-85030457114