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Title: Branched isomeric 1,2,3-triazolium-based ionic liquids: new insight into structure–property relationships

Abstract

A series of four isomeric 1,2,3-triazolium-based ionic liquids (ILs) with vary degree of branching were synthesized and characterized to investigate the effect of ion branching on thermal and physical properties of the resulting IL. It was found that increased branching led to a higher ionicity and higher viscosity. The thermal properties were also altered significantly and spectral changes in the near edge X-ray absorption fine structure (NEXAFS) spectra show that branching affects intermolecular interaction. While the ionicity and viscosity varying linearly with branching, the MDSC and NEXAFS measurements show that the cation shape has a stronger influence on the melting temperature and absorptive properties than the number of branched alkyl substituents.

Authors:
 [1];  [2];  [1];  [1];  [3];  [1];  [3];  [4];  [5];  [1];  [1];  [1];  [2]; ORCiD logo [6]
  1. National Energy Technology Laboratory; Pittsburgh, USA
  2. Materials Science Division; Lawrence Berkeley National Laboratory; Berkeley, USA
  3. Department of Chemistry; University of Pittsburgh; Chevron Science Center; Pittsburgh, USA
  4. National Energy Technology Laboratory; Pittsburgh, USA; Liquid Ion Solutions; Pittsburgh, USA
  5. Computational Research Division; Lawrence Berkeley National Laboratory; Berkeley, USA
  6. National Energy Technology Laboratory; Pittsburgh, USA; Liquid Ion Solutions; Pittsburgh, USA; Department of Chemistry
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Center for Gas Separations Relevant to Clean Energy Technologies (CGS)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1370947
DOE Contract Number:  
SC0001015
Resource Type:
Journal Article
Journal Name:
Physical Chemistry Chemical Physics. PCCP (Print)
Additional Journal Information:
Journal Volume: 17; Journal Issue: 44; Related Information: CGS partners with University of California, Berkeley; University of California, Davis; Lawrence Berkeley National Laboratory; University of Minnesota; National Energy Technology Laboratory; Texas A&M University; Journal ID: ISSN 1463-9076
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; membrane, carbon capture, materials and chemistry by design, synthesis (novel materials), synthesis (self-assembly), synthesis (scalable processing)

Citation Formats

Lartey, M., Meyer-Ilse, J., Watkins, J. D., Roth, E. A., Bowser, S., Kusuma, V. A., Damodaran, K., Zhou, X., Haranczyk, M., Albenze, E., Luebke, D. R., Hopkinson, D., Kortright, J. B., and Nulwala, H. B. Branched isomeric 1,2,3-triazolium-based ionic liquids: new insight into structure–property relationships. United States: N. p., 2015. Web. doi:10.1039/C5CP04756K.
Lartey, M., Meyer-Ilse, J., Watkins, J. D., Roth, E. A., Bowser, S., Kusuma, V. A., Damodaran, K., Zhou, X., Haranczyk, M., Albenze, E., Luebke, D. R., Hopkinson, D., Kortright, J. B., & Nulwala, H. B. Branched isomeric 1,2,3-triazolium-based ionic liquids: new insight into structure–property relationships. United States. doi:10.1039/C5CP04756K.
Lartey, M., Meyer-Ilse, J., Watkins, J. D., Roth, E. A., Bowser, S., Kusuma, V. A., Damodaran, K., Zhou, X., Haranczyk, M., Albenze, E., Luebke, D. R., Hopkinson, D., Kortright, J. B., and Nulwala, H. B. Thu . "Branched isomeric 1,2,3-triazolium-based ionic liquids: new insight into structure–property relationships". United States. doi:10.1039/C5CP04756K.
@article{osti_1370947,
title = {Branched isomeric 1,2,3-triazolium-based ionic liquids: new insight into structure–property relationships},
author = {Lartey, M. and Meyer-Ilse, J. and Watkins, J. D. and Roth, E. A. and Bowser, S. and Kusuma, V. A. and Damodaran, K. and Zhou, X. and Haranczyk, M. and Albenze, E. and Luebke, D. R. and Hopkinson, D. and Kortright, J. B. and Nulwala, H. B.},
abstractNote = {A series of four isomeric 1,2,3-triazolium-based ionic liquids (ILs) with vary degree of branching were synthesized and characterized to investigate the effect of ion branching on thermal and physical properties of the resulting IL. It was found that increased branching led to a higher ionicity and higher viscosity. The thermal properties were also altered significantly and spectral changes in the near edge X-ray absorption fine structure (NEXAFS) spectra show that branching affects intermolecular interaction. While the ionicity and viscosity varying linearly with branching, the MDSC and NEXAFS measurements show that the cation shape has a stronger influence on the melting temperature and absorptive properties than the number of branched alkyl substituents.},
doi = {10.1039/C5CP04756K},
journal = {Physical Chemistry Chemical Physics. PCCP (Print)},
issn = {1463-9076},
number = 44,
volume = 17,
place = {United States},
year = {2015},
month = {1}
}

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