Visible photodissociation spectra of gaseous rhodamine ions: Effects of temperature and tagging

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F17%3A10359779" target="_blank" >RIV/00216208:11310/17:10359779 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jms.2016.10.016" target="_blank" >http://dx.doi.org/10.1016/j.jms.2016.10.016</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jms.2016.10.016" target="_blank" >10.1016/j.jms.2016.10.016</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Visible photodissociation spectra of gaseous rhodamine ions: Effects of temperature and tagging

Popis výsledku v původním jazyce

This paper reports on the effect of He, Ar, and NZ tagging on visible photodissociation (VisPD) spectra of Rhodamine 123 ions. We show that the effect of tagging on the determination of the 0-0 transition in the electronic spectra is negligible. In contrast to the photodissociation spectra of the bare ions, the tagging method provides resolved Franck-Condon envelopes. Ar and NZ tagging spectra revealed minor blue shifts (similar to 0.5 nm) for some maxima in the Franck-Condon envelope with respect to the He tagging spectrum. The N-2 tagging VisPD spectrum was less resolved compared to He and Ar tagging spectra. Further, we have investigated the effect of temperature on photodissociation spectra of bare rhodamine ions. At room temperature, the absorption spectrum is dominated by the absorption of vibrationally excited ions. Vibrationally relaxed ions start to be dominantly sampled at about 150 K. In average, three to four photons are required to induce photodissociation of the rhodamine ions and it is slightly wavelength dependent. We ascribe it to the fluorescence process.

Název v anglickém jazyce

Visible photodissociation spectra of gaseous rhodamine ions: Effects of temperature and tagging

Popis výsledku anglicky

This paper reports on the effect of He, Ar, and NZ tagging on visible photodissociation (VisPD) spectra of Rhodamine 123 ions. We show that the effect of tagging on the determination of the 0-0 transition in the electronic spectra is negligible. In contrast to the photodissociation spectra of the bare ions, the tagging method provides resolved Franck-Condon envelopes. Ar and NZ tagging spectra revealed minor blue shifts (similar to 0.5 nm) for some maxima in the Franck-Condon envelope with respect to the He tagging spectrum. The N-2 tagging VisPD spectrum was less resolved compared to He and Ar tagging spectra. Further, we have investigated the effect of temperature on photodissociation spectra of bare rhodamine ions. At room temperature, the absorption spectrum is dominated by the absorption of vibrationally excited ions. Vibrationally relaxed ions start to be dominantly sampled at about 150 K. In average, three to four photons are required to induce photodissociation of the rhodamine ions and it is slightly wavelength dependent. We ascribe it to the fluorescence process.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Journal of Molecular Spectroscopy

ISSN

0022-2852

e-ISSN

—

Svazek periodika

332

Číslo periodika v rámci svazku

1 February 2017

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

52-58

Kód UT WoS článku

000393728700010

EID výsledku v databázi Scopus

2-s2.0-85006166360