High resolution FTIR and diode laser spectroscopy of trifluoromethylacetylene and tetrafluoromethane in a supersonic jet expansion

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00564047" target="_blank" >RIV/68378271:_____/22:00564047 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0339492" target="_blank" >https://hdl.handle.net/11104/0339492</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/00268976.2022.2093285" target="_blank" >10.1080/00268976.2022.2093285</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High resolution FTIR and diode laser spectroscopy of trifluoromethylacetylene and tetrafluoromethane in a supersonic jet expansion

Popis výsledku v původním jazyce

We report high resolution infrared spectra in the CF stretching fundamental ranges of trifluoromethylacetylene (CF3−C ≡ C-H, 3,3,3-trifluoropropyne) and of tetrafluoromethane (CF4, R14, PCF14, Halocarbon14). For the experiments a diode laser setup combined with a supersonic jet expansion is described, achieving approximate rotational temperatures between 5 and 10 K for CF4, using a pulsed slit nozzle providing effective optical path lengths of 3 to 4 cm in a single pass. Slightly higher rotational temperatures (near 30 K) for CF3CCH greatly simplify the rotational-vibrational structure of the spectra for this molecule, for which we report also high resolution Fourier transform (FTIR) spectra at room temperature with nearly Doppler limited resolution (instrumental bandwidth 0.001 cm−1) using the Zürich prototype spectrometer ZP 2001 (Bruker IFS125).

Název v anglickém jazyce

High resolution FTIR and diode laser spectroscopy of trifluoromethylacetylene and tetrafluoromethane in a supersonic jet expansion

Popis výsledku anglicky

We report high resolution infrared spectra in the CF stretching fundamental ranges of trifluoromethylacetylene (CF3−C ≡ C-H, 3,3,3-trifluoropropyne) and of tetrafluoromethane (CF4, R14, PCF14, Halocarbon14). For the experiments a diode laser setup combined with a supersonic jet expansion is described, achieving approximate rotational temperatures between 5 and 10 K for CF4, using a pulsed slit nozzle providing effective optical path lengths of 3 to 4 cm in a single pass. Slightly higher rotational temperatures (near 30 K) for CF3CCH greatly simplify the rotational-vibrational structure of the spectra for this molecule, for which we report also high resolution Fourier transform (FTIR) spectra at room temperature with nearly Doppler limited resolution (instrumental bandwidth 0.001 cm−1) using the Zürich prototype spectrometer ZP 2001 (Bruker IFS125).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Molecular Physics

ISSN

0026-8976

e-ISSN

1362-3028

Svazek periodika

120

Číslo periodika v rámci svazku

15-16

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

24

Strana od-do

e2093285

Kód UT WoS článku

000838037900001

EID výsledku v databázi Scopus

2-s2.0-85135626155