Enhancement of ionic conductivity in organic ionic plastic crystals by introducing racemic ammonium ions

Masaya Matsuki, Teppei Yamada, Shun Dekura, Hiroshi Kitagawa, Nobuo Kimizuka

研究成果: ジャーナルへの寄稿記事

2 引用 (Scopus)

抄録

An organic ionic plastic crystal (OIPC) consisting of racemic N1233'Tf2N (1) (N1233' = NR1R2R3R4, R1 = Me, R2 = Et, R3 = n-propyl, R4 = isopropyl, Tf2N = bis(trifluorometha-nesulfonyl)imide) is developed. 1 displays three solid phases in addition to the high-temperature liquid phase, and two intermediate phases are assigned to OIPC by DSC, powder XRD and solid-state NMR measurements. Ionic conductivity of 1 showed increase from the low-temperature region, and diffusion of Tf2N anions was confirmed even at -27°C by NMR spectroscopy. This behavior is distinct from that of symmetric N1223'Tf2N (2), which showed much lower ionic conductivity at low temperatures. The introduction of racemic ions in OIPCs weakens the net intermolecular interactions and it enhances molecular motion and accordingly the ionic conductivity.

元の言語英語
ページ(範囲)497-499
ページ数3
ジャーナルChemistry Letters
47
発行部数4
DOI
出版物ステータス出版済み - 1 1 2018

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Ionic conductivity
Ammonium Compounds
Ions
Plastics
Crystals
Imides
Powders
Temperature
Nuclear magnetic resonance spectroscopy
Anions
Display devices
Nuclear magnetic resonance
Liquids

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

これを引用

Enhancement of ionic conductivity in organic ionic plastic crystals by introducing racemic ammonium ions. / Matsuki, Masaya; Yamada, Teppei; Dekura, Shun; Kitagawa, Hiroshi; Kimizuka, Nobuo.

:: Chemistry Letters, 巻 47, 番号 4, 01.01.2018, p. 497-499.

研究成果: ジャーナルへの寄稿記事

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abstract = "An organic ionic plastic crystal (OIPC) consisting of racemic N1233'Tf2N (1) (N1233' = NR1R2R3R4, R1 = Me, R2 = Et, R3 = n-propyl, R4 = isopropyl, Tf2N = bis(trifluorometha-nesulfonyl)imide) is developed. 1 displays three solid phases in addition to the high-temperature liquid phase, and two intermediate phases are assigned to OIPC by DSC, powder XRD and solid-state NMR measurements. Ionic conductivity of 1 showed increase from the low-temperature region, and diffusion of Tf2N anions was confirmed even at -27°C by NMR spectroscopy. This behavior is distinct from that of symmetric N1223'Tf2N (2), which showed much lower ionic conductivity at low temperatures. The introduction of racemic ions in OIPCs weakens the net intermolecular interactions and it enhances molecular motion and accordingly the ionic conductivity.",
author = "Masaya Matsuki and Teppei Yamada and Shun Dekura and Hiroshi Kitagawa and Nobuo Kimizuka",
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AU - Matsuki, Masaya

AU - Yamada, Teppei

AU - Dekura, Shun

AU - Kitagawa, Hiroshi

AU - Kimizuka, Nobuo

PY - 2018/1/1

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N2 - An organic ionic plastic crystal (OIPC) consisting of racemic N1233'Tf2N (1) (N1233' = NR1R2R3R4, R1 = Me, R2 = Et, R3 = n-propyl, R4 = isopropyl, Tf2N = bis(trifluorometha-nesulfonyl)imide) is developed. 1 displays three solid phases in addition to the high-temperature liquid phase, and two intermediate phases are assigned to OIPC by DSC, powder XRD and solid-state NMR measurements. Ionic conductivity of 1 showed increase from the low-temperature region, and diffusion of Tf2N anions was confirmed even at -27°C by NMR spectroscopy. This behavior is distinct from that of symmetric N1223'Tf2N (2), which showed much lower ionic conductivity at low temperatures. The introduction of racemic ions in OIPCs weakens the net intermolecular interactions and it enhances molecular motion and accordingly the ionic conductivity.

AB - An organic ionic plastic crystal (OIPC) consisting of racemic N1233'Tf2N (1) (N1233' = NR1R2R3R4, R1 = Me, R2 = Et, R3 = n-propyl, R4 = isopropyl, Tf2N = bis(trifluorometha-nesulfonyl)imide) is developed. 1 displays three solid phases in addition to the high-temperature liquid phase, and two intermediate phases are assigned to OIPC by DSC, powder XRD and solid-state NMR measurements. Ionic conductivity of 1 showed increase from the low-temperature region, and diffusion of Tf2N anions was confirmed even at -27°C by NMR spectroscopy. This behavior is distinct from that of symmetric N1223'Tf2N (2), which showed much lower ionic conductivity at low temperatures. The introduction of racemic ions in OIPCs weakens the net intermolecular interactions and it enhances molecular motion and accordingly the ionic conductivity.

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