Journal article
Unraveling the Stepwise Melting of an Ionic Liquid
The journal of physical chemistry. B, v 121(17), pp 4650-4655
04 May 2017
PMID: 28394613
Abstract
Differential scanning calorimetry, X-ray diffraction, and Raman spectros-copy were used to reveal the premelting events precursors of melting of the ionic liquid triethylsulfonium bis(trifluoromethanesufonyl)imide, [S-222][NTf2]. On heating the crystalline phase of [5222][NTf2], melting occurs along a sequence of at least three steps. First, the crystalline long-range order breaks down, but local order is retained. The second step is characterized by conformational freedom of the ethyl chains of cations related to premelting of nonpolar domains, and the complete melting finally occurs when anions acquire conformational freedom. This work provides a microscopic view on the mechanism of melting of [S-222] [NTf2] in line with the picture of melting taking place as a sequence of structural changes. The results of this work shed light on the understanding of the complex melting process of ionic liquids.
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Details
- Title
- Unraveling the Stepwise Melting of an Ionic Liquid
- Creators
- Thamires A. Lima - Universidade de São PauloVitor H. Paschoal - Universidade de São PauloLuiz F. O. Faria - Universidade de São PauloMauro C. C. Ribeiro - Universidade de São Paulo
- Publication Details
- The journal of physical chemistry. B, v 121(17), pp 4650-4655
- Publisher
- American Chemical Society; Washington, DC
- Number of pages
- 6
- Grant note
- 2015/07516-8; 2015/05803-0; 2014/15049-8; 2012/13119-3 / FAPESP; Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) CNPq; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000400881300036
- Scopus ID
- 2-s2.0-85020204850
- Other Identifier
- 991019299013804721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Chemistry, Physical