Analysis of mixed nitric oxide - Water clusters by complementary ionization methods

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F17%3A00476041" target="_blank" >RIV/61388955:_____/17:00476041 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.ijms.2017.06.012" target="_blank" >http://dx.doi.org/10.1016/j.ijms.2017.06.012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijms.2017.06.012" target="_blank" >10.1016/j.ijms.2017.06.012</a>

Result language

angličtina

Original language name

Analysis of mixed nitric oxide - Water clusters by complementary ionization methods

Original language description

Mixed clusters of nitric oxide and water are investigated by mass spectrometry using different ionization methods, namely (1) the electron ionization at 70 eV (El), (2) the doping with sodium atoms and subsequent photoionization (NaPI), and (3) the low energy electron attachment (EA). All these methods applied to the same molecular beam generated by mixed NO-water expansion yield distinctly different mass spectra. The El spectra are dominated by the protonated water (H2O)(n)H+ ions, nevertheless, they show some evidence for the mixed NO-water clusters. The NaPI spectra exhibit only (H2O)(n).Na+ ions which originate from the pure water clusters (H2O)(N). The abundance of the pure water clusters generated in the mixed expansions is small compared to the abundance of the mixed species. The negative EA spectra clearly demonstrate the dominance of the mixed clusters, namely (H2O)(n).NO2- and (H2O)(n)center dot(NO)(m)(-), m =2, 3. None of the above mentioned methods alone can reveal the neutral cluster composition and size, however, based on their unique combination in our experiment, we can discuss the neutral clusters and ionization processes. In addition, we have investigated the negative ion intracluster chemistry by the theoretical calculations. Energetically favorable pathways from the (NO)(3)(-) ionic core to the NO2- in the presence of water are identified, justifying the generation of the (H2O)(n) center dot NO2- series. Further series in the negative ion spectra are discussed. (C) 2017 Elsevier B.V. All rights reserved.

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/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)

Publication year

2017

Confidentiality

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

Name of the periodical

International Journal of Mass Spectrometry

ISSN

1387-3806

e-ISSN

—

Volume of the periodical

421

Issue of the periodical within the volume

OCT 2017

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

6

Pages from-to

144-149

UT code for WoS article

000414114100016

EID of the result in the Scopus database

2-s2.0-85023608247