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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GA17-04068S" target="_blank" >GA17-04068S: Molekulové klastry jako nano-reaktory pro chemii řízenou fotony a elektrony</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

International Journal of Mass Spectrometry

ISSN

1387-3806

e-ISSN

—

Svazek periodika

421

Číslo periodika v rámci svazku

OCT 2017

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

144-149

Kód UT WoS článku

000414114100016

EID výsledku v databázi Scopus

2-s2.0-85023608247