Phase behaviour and heat capacities of selected 1-ethyl-3-methylimidazolium-based ionic liquids II

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F21%3A43922431" target="_blank" >RIV/60461373:22340/21:43922431 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/21:00543822

Result on the web

<a href="https://doi.org/10.1016/j.jct.2021.106392" target="_blank" >https://doi.org/10.1016/j.jct.2021.106392</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jct.2021.106392" target="_blank" >10.1016/j.jct.2021.106392</a>

Result language

angličtina

Original language name

Phase behaviour and heat capacities of selected 1-ethyl-3-methylimidazolium-based ionic liquids II

Original language description

Ionic liquids are widely studied compounds with various potential applications, which are restricted by limited availability and understanding of their properties. Despite being commercially produced in a relatively high purity nowadays, the data on thermodynamic properties of ILs published in the most recent papers still keep large discrepancies. Phase behaviour, heat capacities, and crystal structures are studied in this work for additional eight common ionic liquids based on the 1-ethyl-3-methylimidazolium cation, [C1C2Im], coupled with simple organic or inorganic anions. Special attention is paid for drying of the samples, evaluation of the water content and its impact on the studied properties. All the samples were found to exhibit glass transitions, temperatures of which are determined with respect to the heating rate to simplify comparison with future works. The resulting melting temperatures, fusion enthalpies, and heat capacities are critically compared with the available data from the literature. Yet undescribed complex polymorphic behaviour is detected and resolved for methanesulfonate and dicyanamide salts, [C1C2Im][MeSO3] and [C1C2Im][DCA], respectively. The X-ray powder diffraction analysis for samples melting above the room temperature was performed to support our results. A crystal structure for one of the polymorphs of [C1C2Im][MeSO3] is reported for the first time.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10403 - Physical chemistry

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

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

Name of the periodical

Journal of Chemical Thermodynamics

ISSN

0021-9614

e-ISSN

—

Volume of the periodical

160

Issue of the periodical within the volume

September

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

106392

UT code for WoS article

000659250500012

EID of the result in the Scopus database

2-s2.0-85102413600