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Faria LFO, Nobrega MM, Falsini N, et al. Structure and Reactivity of the Ionic Liquid 1-Allyl-3-methylimidazolium Iodide under High Pressure. J Phys Chem B. 2019;123(8):1822-1830doi: 10.1021/acs.jpcb.8b10669.
Faria, L. F. O., Nobrega, M. M., Falsini, N., Fanetti, S., Temperini, M. L. A., Bini, R., & Ribeiro, M. C. C. (2019). Structure and Reactivity of the Ionic Liquid 1-Allyl-3-methylimidazolium Iodide under High Pressure. The journal of physical chemistry. B, 123(8), 1822-1830. https://doi.org/10.1021/acs.jpcb.8b10669
Faria, Luiz F O, et al. "Structure and Reactivity of the Ionic Liquid 1-Allyl-3-methylimidazolium Iodide under High Pressure." The journal of physical chemistry. B vol. 123,8 (2019): 1822-1830. doi: https://doi.org/10.1021/acs.jpcb.8b10669
Faria LFO, Nobrega MM, Falsini N, Fanetti S, Temperini MLA, Bini R, Ribeiro MCC. Structure and Reactivity of the Ionic Liquid 1-Allyl-3-methylimidazolium Iodide under High Pressure. J Phys Chem B. 2019 Feb 28;123(8):1822-1830. doi: 10.1021/acs.jpcb.8b10669. Epub 2019 Feb 18. PMID: 30730744.
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J Phys Chem B. 2019 Feb 28;123(8):1822-1830. doi: 10.1021/acs.jpcb.8b10669. Epub 2019 Feb 18.

Structure and Reactivity of the Ionic Liquid 1-Allyl-3-methylimidazolium Iodide under High Pressure.

The journal of physical chemistry. B

Luiz F O Faria, Marcelo M Nobrega, Naomi Falsini, Samuele Fanetti, Marcia L A Temperini, Roberto Bini, Mauro C C Ribeiro

Affiliations

  1. Laboratório de Espectroscopia Molecular, Departamento de Química Fundamental, Instituto de Química , Universidade de São Paulo , Av. Prof. Lineu Prestes 748 , 05508-000 São Paulo , Brazil.
  2. LENS, European Laboratory for Nonlinear Spectroscopy , Via Nello Carrara 1 , 50019 Florence , Sesto Fiorentino, Italy.
  3. Dipartimento di Chimica"Ugo Schiff"dell'Università degli Studi di Firenze , Via della Lastruccia 3 , 50019 Florence , Sesto Fiorentino, Italy.

PMID: 30730744 DOI: 10.1021/acs.jpcb.8b10669

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).

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