Effect of paramagnetic metal ions on 1H diffusion in trihexyltetradecylphosphonium benzoate ionic liquid

Dorai Arunkumar, Mrutyunjay Panigrahi, Dmytro Kozak, Mariusz Grabda, Etsuro Shibata, Takashi Nakamura, Junichi Kawamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

We have studied the effect of paramagnetic metal ion (neodymium) on the translational motion (diffusion) of Trihexyltetradecylphosphonium benzoate ionic liquid using pulsed field gradient NMR. 1D proton NMR results show that the cation and anion are both affected by the presence of neodymium ion. The paramagnetic lanthanide ion induces a downfield shift in the 1D NMR spectra. The 1H diffusion coefficients of the anion and cation are different and increase with temperature at low concentrations of neodymium. At higher neodymium concentrations, on the other hand the diffusion coefficients for of the cations and anions show the same value, which suggests the formation of aggregates around neodymium.

Original languageEnglish
Title of host publicationMolten Salts and Ionic Liquids 20
EditorsM. Carter, F. Endres, E. J. Biddinger, M. Reichert, A. Ispas, H. C. De Long, A. Bund, L. M. Haverhals, R. A. Mantz, P. C. Trulove, D. M. Fox, A. H. Suroviec, M. Ueda
PublisherElectrochemical Society Inc.
Pages567-573
Number of pages7
Edition15
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2016 Jan 1
EventSymposium on Molten Salts and Ionic Liquids 20 - PRiME 2016/230th ECS Meeting - Honolulu, United States
Duration: 2016 Oct 22016 Oct 7

Publication series

NameECS Transactions
Number15
Volume75
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherSymposium on Molten Salts and Ionic Liquids 20 - PRiME 2016/230th ECS Meeting
CountryUnited States
CityHonolulu
Period16/10/216/10/7

ASJC Scopus subject areas

  • Engineering(all)

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    Arunkumar, D., Panigrahi, M., Kozak, D., Grabda, M., Shibata, E., Nakamura, T., & Kawamura, J. (2016). Effect of paramagnetic metal ions on 1H diffusion in trihexyltetradecylphosphonium benzoate ionic liquid. In M. Carter, F. Endres, E. J. Biddinger, M. Reichert, A. Ispas, H. C. De Long, A. Bund, L. M. Haverhals, R. A. Mantz, P. C. Trulove, D. M. Fox, A. H. Suroviec, & M. Ueda (Eds.), Molten Salts and Ionic Liquids 20 (15 ed., pp. 567-573). (ECS Transactions; Vol. 75, No. 15). Electrochemical Society Inc.. https://doi.org/10.1149/07515.0567ecst