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Structure and Reactivity of the Ionic Liquid 1-Allyl-3-methylimidazolium Iodide under High Pressure
- Source :
- Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual), Universidade de São Paulo (USP), instacron:USP
- Publication Year :
- 2019
- Publisher :
- American Chemical Society (ACS), 2019.
-
Abstract
- Poly(ionic liquid)s are an interesting class of compounds because of their unique chemical and physical properties gathering the characteristics of ionic liquids and polymers. Pressure and temperature have been demonstrated to be alternative parameters to obtain polymers from monomeric species using only physical tools. In this work, we investigate the reaction under high pressure and room temperature of the ionic liquid 1-allyl-3-methylimidazolium iodide by using the diamond anvil cell technique in combination with synchrotron X-ray diffraction and electronic and vibrational spectroscopies. The results indicate a chemical reaction happening through the terminal double bond of the allyl group both in crystalline and glassy phases with the onset of the reaction around ∼7 GPa. Vibrational spectra present evidence for an oligomerization reaction in both the phases. The reaction occurring both in glassy and crystal phases indicates a mechanism not driven by collective motions and likely related to local topological arrangements. The results presented herein extend our understanding of ionic liquid instability boundaries under high pressure and contribute to the development of alternative synthetic routes to achieve poly(ionic liquids).
- Subjects :
- chemistry.chemical_classification
Materials science
010304 chemical physics
Double bond
Iodide
LÍQUIDOS IÔNICOS
Polymer
010402 general chemistry
01 natural sciences
Chemical reaction
Diamond anvil cell
0104 chemical sciences
Surfaces, Coatings and Films
Condensed Matter::Soft Condensed Matter
Crystal
chemistry.chemical_compound
chemistry
0103 physical sciences
Ionic liquid
Materials Chemistry
Physical chemistry
Reactivity (chemistry)
Physical and Theoretical Chemistry
Subjects
Details
- ISSN :
- 15205207 and 15206106
- Volume :
- 123
- Database :
- OpenAIRE
- Journal :
- The Journal of Physical Chemistry B
- Accession number :
- edsair.doi.dedup.....6791da63ffb22b00f7c44c627bc7c971