On the Interaction of Ionic Liquid l-Butyl-3-Methylimidazolium Hexafluorophosphate with beta-Cyclodextrin in Aqueous Solutions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F10%3A00023430" target="_blank" >RIV/60461373:22340/10:00023430 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

On the Interaction of Ionic Liquid l-Butyl-3-Methylimidazolium Hexafluorophosphate with beta-Cyclodextrin in Aqueous Solutions

Popis výsledku v původním jazyce

The formation of inclusion complex of beta-cyclodextrin (beta-CD) with the hydrophobic room temperature ionic liquid l-butyl-3-methylimidazolium hexafluorophosphate (bmimPF6) in aqueous sofutions was studied at 298.15 K using lH, l3C, 19F and 3lP NMR spectroscopy and isothermal titration calorimetry (ITC). Cunently, there is a disagreement in the literature concerning the structure of the complex formed. In contrast to some results published recently in the literature, we found no reasonable support forbeta-CD to form an inclusion complex with 1-buty|-3-methylimidazolium cation of bmimPF6 in water. Our measurements on bmimPF6, the ionic liquid l-butyl-3-methylimidazolium chloride (bmimCl), and the inorganic salt potassium hexafluorophosphate (KPF6) consistently support the formation of a weak l: l inclusion complex of beta-CD with hexafluorophosphate anion instead of the bmim cation. The thermodynamic parameters of the respective complexation were calculated. The binding constant was

Název v anglickém jazyce

On the Interaction of Ionic Liquid l-Butyl-3-Methylimidazolium Hexafluorophosphate with beta-Cyclodextrin in Aqueous Solutions

Popis výsledku anglicky

The formation of inclusion complex of beta-cyclodextrin (beta-CD) with the hydrophobic room temperature ionic liquid l-butyl-3-methylimidazolium hexafluorophosphate (bmimPF6) in aqueous sofutions was studied at 298.15 K using lH, l3C, 19F and 3lP NMR spectroscopy and isothermal titration calorimetry (ITC). Cunently, there is a disagreement in the literature concerning the structure of the complex formed. In contrast to some results published recently in the literature, we found no reasonable support forbeta-CD to form an inclusion complex with 1-buty|-3-methylimidazolium cation of bmimPF6 in water. Our measurements on bmimPF6, the ionic liquid l-butyl-3-methylimidazolium chloride (bmimCl), and the inorganic salt potassium hexafluorophosphate (KPF6) consistently support the formation of a weak l: l inclusion complex of beta-CD with hexafluorophosphate anion instead of the bmim cation. The thermodynamic parameters of the respective complexation were calculated. The binding constant was

Druh

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

CEP obor

BJ - Termodynamika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Zeitschrift für Physikalische Chemie

ISSN

0942-9352

e-ISSN

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Svazek periodika

224

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

14

Strana od-do

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Kód UT WoS článku

000281120900007

EID výsledku v databázi Scopus

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