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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%2F61388955%3A_____%2F17%3A00479593" target="_blank" >RIV/61388955:_____/17:00479593 - isvavai.cz</a>

  • Alternative codes found

    RIV/60461373:22340/17:43914365

  • Result on the web

    <a href="http://dx.doi.org/10.1021/acs.jpcb.7b07390" target="_blank" >http://dx.doi.org/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

  • Czech description

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

    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

  • 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