Two-Color Infrared Predissociation Spectroscopy of C6H62+ Isomers Using Helium Tagging

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10295983" target="_blank" >RIV/00216208:11310/15:10295983 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1021/jp5088064" target="_blank" >http://dx.doi.org/10.1021/jp5088064</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/jp5088064" target="_blank" >10.1021/jp5088064</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Two-Color Infrared Predissociation Spectroscopy of C6H62+ Isomers Using Helium Tagging

Popis výsledku v původním jazyce

Two-color IR-IR isomer selective predissociation spectra of helium-tagged C6H62+ are presented. The dications are generated via electron bombardment of either benzene or 1,3-cyclohexadiene. After mass selection they are injected into a 2.6 K cold ion trap where the presence of a dense He buffer gas not only cools them but also leads to He attachment. The ion ensemble is exposed to one or two intense IR pulses from optical parametric oscillators (OPOs) (1200-3100 cm(-1)) before it is extracted, mass analyzed, and detected. On the basis of a comparison with theoretical predictions, the resulting spectral features allow us to separate and assign different isomers of C6H62+ dications. Compression of the ion cloud very close to the axis of the linear quadrupole trap and coaxial superposition of well-collimated laser beams results in the fragmentation of almost all helium complexes at specific wavelengths. This unique feature enables us to record fluence-dependent attenuation curves for indi

Název v anglickém jazyce

Two-Color Infrared Predissociation Spectroscopy of C6H62+ Isomers Using Helium Tagging

Popis výsledku anglicky

Two-color IR-IR isomer selective predissociation spectra of helium-tagged C6H62+ are presented. The dications are generated via electron bombardment of either benzene or 1,3-cyclohexadiene. After mass selection they are injected into a 2.6 K cold ion trap where the presence of a dense He buffer gas not only cools them but also leads to He attachment. The ion ensemble is exposed to one or two intense IR pulses from optical parametric oscillators (OPOs) (1200-3100 cm(-1)) before it is extracted, mass analyzed, and detected. On the basis of a comparison with theoretical predictions, the resulting spectral features allow us to separate and assign different isomers of C6H62+ dications. Compression of the ion cloud very close to the axis of the linear quadrupole trap and coaxial superposition of well-collimated laser beams results in the fragmentation of almost all helium complexes at specific wavelengths. This unique feature enables us to record fluence-dependent attenuation curves for indi

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CC - Organická chemie

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Physical Chemistry A

ISSN

1089-5639

e-ISSN

—

Svazek periodika

119

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

2532-2542

Kód UT WoS článku

000351557300038

EID výsledku v databázi Scopus

2-s2.0-84925067776