Isotopic effects in the interaction of O- with D-2 and H-2 at low temperatures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10371593" target="_blank" >RIV/00216208:11320/17:10371593 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevA.96.062703" target="_blank" >http://dx.doi.org/10.1103/PhysRevA.96.062703</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevA.96.062703" target="_blank" >10.1103/PhysRevA.96.062703</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Isotopic effects in the interaction of O- with D-2 and H-2 at low temperatures

Popis výsledku v původním jazyce

The isotopic effects in reactions of O- ions with H-2 and D-2 have been studied experimentally using a cryogenic 22-pole radio-frequency ion trap. The rate coefficients for associative detachment leading to H2O + e(-) and to D2O + e(-) and for atom transfer reactions leading to formation of OH- and OD- ions were determined at temperatures ranging from 15 to 300 K. The measured temperature dependencies of the rate coefficients for both channels of reactions of O- with H-2 and D-2 are compared with the results of the classical trajectory Monte Carlo simulation of the O- + H-2 and O- + D-2 collisions using the newly calculated potential energy surfaces. The measured temperature dependencies of the reaction rate coefficients for associative detachment are in very good agreement with the calculated ones. Agreement between experimental and calculated temperature dependencies of the rate coefficients of atom transfer reactions is off at most by a factor of 3 and the isotope effect is reproduced.

Název v anglickém jazyce

Isotopic effects in the interaction of O- with D-2 and H-2 at low temperatures

Popis výsledku anglicky

The isotopic effects in reactions of O- ions with H-2 and D-2 have been studied experimentally using a cryogenic 22-pole radio-frequency ion trap. The rate coefficients for associative detachment leading to H2O + e(-) and to D2O + e(-) and for atom transfer reactions leading to formation of OH- and OD- ions were determined at temperatures ranging from 15 to 300 K. The measured temperature dependencies of the rate coefficients for both channels of reactions of O- with H-2 and D-2 are compared with the results of the classical trajectory Monte Carlo simulation of the O- + H-2 and O- + D-2 collisions using the newly calculated potential energy surfaces. The measured temperature dependencies of the reaction rate coefficients for associative detachment are in very good agreement with the calculated ones. Agreement between experimental and calculated temperature dependencies of the rate coefficients of atom transfer reactions is off at most by a factor of 3 and the isotope effect is reproduced.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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

Physical Review A

ISSN

2469-9926

e-ISSN

—

Svazek periodika

96

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

000417471100004

EID výsledku v databázi Scopus

2-s2.0-85038208006