Infrared spectroscopy of the symmetric branched isomers of n-heptanol

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F17%3A43914618" target="_blank" >RIV/60461373:22340/17:43914618 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0167732217310887" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0167732217310887</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.molliq.2017.09.023" target="_blank" >10.1016/j.molliq.2017.09.023</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Infrared spectroscopy of the symmetric branched isomers of n-heptanol

Popis výsledku v původním jazyce

Three pure heptanol isomers were studied using infrared spectroscopy: n-heptanol, 2,4-dimethyl-3-pentanol, and 3-ethyl-3-pentanol. In order to analyze the branching effect of heptanol, investigations on the twosymmetric branched isomers have been performed. Branching and steric hindrance highly influence the aggregation in associating systems. Therefore, a systematic comparisonwith the linearmolecule n-heptanol is performed to better understand the experimental data. The vibrational structures were studied in the spectral range from 650 to 4000 cm-1 and the individual peaks were assigned to the corresponding vibrational modes of the molecules. The OH-stretching band is significantly narrower in the spectra of the branched alcohols compared to n-heptanol. In particular, the lowfrequency components of the band are absent. This is a result of the steric hindrance leading to a less pronounced hydrogen bonding network.

Název v anglickém jazyce

Infrared spectroscopy of the symmetric branched isomers of n-heptanol

Popis výsledku anglicky

Three pure heptanol isomers were studied using infrared spectroscopy: n-heptanol, 2,4-dimethyl-3-pentanol, and 3-ethyl-3-pentanol. In order to analyze the branching effect of heptanol, investigations on the twosymmetric branched isomers have been performed. Branching and steric hindrance highly influence the aggregation in associating systems. Therefore, a systematic comparisonwith the linearmolecule n-heptanol is performed to better understand the experimental data. The vibrational structures were studied in the spectral range from 650 to 4000 cm-1 and the individual peaks were assigned to the corresponding vibrational modes of the molecules. The OH-stretching band is significantly narrower in the spectra of the branched alcohols compared to n-heptanol. In particular, the lowfrequency components of the band are absent. This is a result of the steric hindrance leading to a less pronounced hydrogen bonding network.

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 Liquids

ISSN

0167-7322

e-ISSN

—

Svazek periodika

528?532

Číslo periodika v rámci svazku

8. září 2018

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

"528?532"

Kód UT WoS článku

000413391000061

EID výsledku v databázi Scopus

2-s2.0-85029480723