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Open AccessArticle

Synthesis of an Adduct-Type Organic Ionic Crystal with Solid-State Ionic Conductivity from A Thiocyanate-Based Ionic Liquid and B(C6F5)3

by Yui Oki 1 and Makoto Moriya 1,2,*
1
Department of Optoelectronics and Nanostructure Science, Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
2
Academic Institute, College of Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
*
Author to whom correspondence should be addressed.
Crystals 2019, 9(11), 567; https://doi.org/10.3390/cryst9110567
Received: 29 September 2019 / Revised: 27 October 2019 / Accepted: 28 October 2019 / Published: 29 October 2019
(This article belongs to the Special Issue Liquid-Crystalline Ion Conductors)
We synthesized the novel adduct-type organic ionic crystal [C3mim][SCN·B(C6F5)3] (1) by the reaction of 1–methyl–3–propylimidazolium thiocyanate ([C3mim][SCN]), which is a room temperature ionic liquid, and B(C6F5)3, a bulky Lewis acid. The formation of a coordinative B–N bond between the SCN anion and the B(C6F5)3 in 1 was revealed by single-crystal X-ray diffractometry. We showed that 1 displays ionic conductivity in the crystalline state and that doping 1 with sodium thiocyanate and B(C6F5)3 results in a dramatic increase in ionic conductivity compared to that of 1. View Full-Text
Keywords: organic ionic crystal; solid-state ionic conductivity; thiocyanate organic ionic crystal; solid-state ionic conductivity; thiocyanate
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MDPI and ACS Style

Oki, Y.; Moriya, M. Synthesis of an Adduct-Type Organic Ionic Crystal with Solid-State Ionic Conductivity from A Thiocyanate-Based Ionic Liquid and B(C6F5)3. Crystals 2019, 9, 567.

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