Gas-liquid partitioning of halogenated volatile organic compounds in aqueous cyclodextrin solutions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F11%3A43889946" target="_blank" >RIV/60461373:22340/11:43889946 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jct.2011.03.017" target="_blank" >http://dx.doi.org/10.1016/j.jct.2011.03.017</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jct.2011.03.017" target="_blank" >10.1016/j.jct.2011.03.017</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Gas-liquid partitioning of halogenated volatile organic compounds in aqueous cyclodextrin solutions

Popis výsledku v původním jazyce

Gas-liquid partitioning coefficients (K_GL) were measured for halogenated volatile organic compounds (VOCs), namely 1-chlorobutane, methoxyflurane, pentafluoropropan-1-ol, heptafluorobutan-1-ol, alpha,alpha,alpha-trifluorotoluene, and toluene in aqueoussolutions of natural alpha-, beta-, and gamma-cyclodextrins (CDs) at temperatures from (273.35 to 326.35) K employing the techniques of headspace gas chromatography and inert gas stripping. The binding constants of the 1:1 inclusion complex formation between the VOCs and CDs were evaluated from the depression of the VOCs volatility as a function of CD concentration. The host?guest size matching and the hydrophobic interaction concept were used to rationalize the observed widely different affinity of theVOC-CD pairs to form the inclusion complex. The enthalpic and entropic component of the standard Gibbs free energy of complex formation as derived from the temperature dependence of the binding constant indicate the thermodynamic origin

Název v anglickém jazyce

Gas-liquid partitioning of halogenated volatile organic compounds in aqueous cyclodextrin solutions

Popis výsledku anglicky

Gas-liquid partitioning coefficients (K_GL) were measured for halogenated volatile organic compounds (VOCs), namely 1-chlorobutane, methoxyflurane, pentafluoropropan-1-ol, heptafluorobutan-1-ol, alpha,alpha,alpha-trifluorotoluene, and toluene in aqueoussolutions of natural alpha-, beta-, and gamma-cyclodextrins (CDs) at temperatures from (273.35 to 326.35) K employing the techniques of headspace gas chromatography and inert gas stripping. The binding constants of the 1:1 inclusion complex formation between the VOCs and CDs were evaluated from the depression of the VOCs volatility as a function of CD concentration. The host?guest size matching and the hydrophobic interaction concept were used to rationalize the observed widely different affinity of theVOC-CD pairs to form the inclusion complex. The enthalpic and entropic component of the standard Gibbs free energy of complex formation as derived from the temperature dependence of the binding constant indicate the thermodynamic origin

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

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Journal of Chemical Thermodynamics

ISSN

0021-9614

e-ISSN

—

Svazek periodika

43

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

1270-1277

Kód UT WoS článku

000291522900020

EID výsledku v databázi Scopus

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