OH-stretch overtone of methanol: empirical assignment using a two temperature technique in a supersonic jet

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F15%3A00444883" target="_blank" >RIV/61388955:_____/15:00444883 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1039/C5CP00425J" target="_blank" >http://dx.doi.org/10.1039/C5CP00425J</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/C5CP00425J" target="_blank" >10.1039/C5CP00425J</a>

Jazyk výsledku

angličtina

Název v původním jazyce

OH-stretch overtone of methanol: empirical assignment using a two temperature technique in a supersonic jet

Popis výsledku v původním jazyce

This paper describes a novel approach for empirical lower state assignments in complex high resolution ro-vibrational overtone spectra of molecules with low rotational constants and complex intramolecular dynamics. Methanol, CH3OH, was chosen as a representative of such molecules ? it is an asymmetric top with two non-hydrogen nuclei and hindered internal rotation leading to dense and disordered rotational structure of vibrational overtone bands. We report the first rotationally resolved methanol spectra of the OH-stretch overtone 2?1 band using sub-Doppler diode laser spectroscopy in a supersonic jet, and describe how the combination of two temperature analysis (TTA) and analysis by ground state combination differences (GSCDs) is used to reliably identify spectral lines that originate from lowest rotational states. In the first step of the analysis, the TTA was utilized to obtain a set of possible rotational assignments for each spectral line using the line intensity variation between

Název v anglickém jazyce

OH-stretch overtone of methanol: empirical assignment using a two temperature technique in a supersonic jet

Popis výsledku anglicky

This paper describes a novel approach for empirical lower state assignments in complex high resolution ro-vibrational overtone spectra of molecules with low rotational constants and complex intramolecular dynamics. Methanol, CH3OH, was chosen as a representative of such molecules ? it is an asymmetric top with two non-hydrogen nuclei and hindered internal rotation leading to dense and disordered rotational structure of vibrational overtone bands. We report the first rotationally resolved methanol spectra of the OH-stretch overtone 2?1 band using sub-Doppler diode laser spectroscopy in a supersonic jet, and describe how the combination of two temperature analysis (TTA) and analysis by ground state combination differences (GSCDs) is used to reliably identify spectral lines that originate from lowest rotational states. In the first step of the analysis, the TTA was utilized to obtain a set of possible rotational assignments for each spectral line using the line intensity variation between

Druh

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

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA13-11635S" target="_blank" >GA13-11635S: Vibračními overtony iniciovaná atmosferická chemie izolovaných molekul a molekulárních klastrů</a><br>

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

Physical Chemistry Chemical Physics

ISSN

1463-9076

e-ISSN

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Svazek periodika

17

Číslo periodika v rámci svazku

24

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

15710-15717

Kód UT WoS článku

000356056000025

EID výsledku v databázi Scopus

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