Ionic plastic phase in piperidinium hexafluorophosphate studied by solid nmr, x-ray diffraction, and thermal measurements

Hiroshi Ono, Shin'ichi Ishimaru, Ryuichi Ikcda, Hiroyuki Ishida

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Measurements of 1H, 19F, and 31P NMR, differential scanning calorimetry (DSC) and X-ray powder diffraction were carried out in piperidinium hexafluorophosphate ([C5H10NH2]PF6). Three solid phases were observed by DSC in the range from 150 K to the melting point of 517 K. The highest-temperature phase was determined to form a CsCl-type cubic lattice with a=6.21(3) Å, Z=l, V= 240(4) Å3, and Dx= 1.60(3) Mg m-3. From the NMR measurements in this phase, both cation and anion were revealed to perform self-diffusion as well as isotropic rotation. These molecular motions and thermal properties indicate that this phase is an ionic plastic phase.

Original languageEnglish
Pages (from-to)650-655
Number of pages6
JournalBerichte der Bunsengesellschaft/Physical Chemistry Chemical Physics
Volume102
Issue number4
Publication statusPublished - 1998
Externally publishedYes

Fingerprint

Differential scanning calorimetry
Diffraction
Nuclear magnetic resonance
Plastics
X rays
X ray powder diffraction
Anions
Melting point
Cations
Negative ions
Thermodynamic properties
Positive ions
Temperature
Hot Temperature
cesium chloride

Keywords

  • Diffusion
  • Ionic plastic crystal
  • Nuclear magnetic resonance
  • Phase transitions
  • Spectroscopy

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Ionic plastic phase in piperidinium hexafluorophosphate studied by solid nmr, x-ray diffraction, and thermal measurements. / Ono, Hiroshi; Ishimaru, Shin'ichi; Ikcda, Ryuichi; Ishida, Hiroyuki.

In: Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics, Vol. 102, No. 4, 1998, p. 650-655.

Research output: Contribution to journalArticle

@article{bdc330f41f5e43bcb1bf1569bbe2f9e9,
title = "Ionic plastic phase in piperidinium hexafluorophosphate studied by solid nmr, x-ray diffraction, and thermal measurements",
abstract = "Measurements of 1H, 19F, and 31P NMR, differential scanning calorimetry (DSC) and X-ray powder diffraction were carried out in piperidinium hexafluorophosphate ([C5H10NH2]PF6). Three solid phases were observed by DSC in the range from 150 K to the melting point of 517 K. The highest-temperature phase was determined to form a CsCl-type cubic lattice with a=6.21(3) {\AA}, Z=l, V= 240(4) {\AA}3, and Dx= 1.60(3) Mg m-3. From the NMR measurements in this phase, both cation and anion were revealed to perform self-diffusion as well as isotropic rotation. These molecular motions and thermal properties indicate that this phase is an ionic plastic phase.",
keywords = "Diffusion, Ionic plastic crystal, Nuclear magnetic resonance, Phase transitions, Spectroscopy",
author = "Hiroshi Ono and Shin'ichi Ishimaru and Ryuichi Ikcda and Hiroyuki Ishida",
year = "1998",
language = "English",
volume = "102",
pages = "650--655",
journal = "Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics",
issn = "0940-483X",
publisher = "VCH Publishers",
number = "4",

}

TY - JOUR

T1 - Ionic plastic phase in piperidinium hexafluorophosphate studied by solid nmr, x-ray diffraction, and thermal measurements

AU - Ono, Hiroshi

AU - Ishimaru, Shin'ichi

AU - Ikcda, Ryuichi

AU - Ishida, Hiroyuki

PY - 1998

Y1 - 1998

N2 - Measurements of 1H, 19F, and 31P NMR, differential scanning calorimetry (DSC) and X-ray powder diffraction were carried out in piperidinium hexafluorophosphate ([C5H10NH2]PF6). Three solid phases were observed by DSC in the range from 150 K to the melting point of 517 K. The highest-temperature phase was determined to form a CsCl-type cubic lattice with a=6.21(3) Å, Z=l, V= 240(4) Å3, and Dx= 1.60(3) Mg m-3. From the NMR measurements in this phase, both cation and anion were revealed to perform self-diffusion as well as isotropic rotation. These molecular motions and thermal properties indicate that this phase is an ionic plastic phase.

AB - Measurements of 1H, 19F, and 31P NMR, differential scanning calorimetry (DSC) and X-ray powder diffraction were carried out in piperidinium hexafluorophosphate ([C5H10NH2]PF6). Three solid phases were observed by DSC in the range from 150 K to the melting point of 517 K. The highest-temperature phase was determined to form a CsCl-type cubic lattice with a=6.21(3) Å, Z=l, V= 240(4) Å3, and Dx= 1.60(3) Mg m-3. From the NMR measurements in this phase, both cation and anion were revealed to perform self-diffusion as well as isotropic rotation. These molecular motions and thermal properties indicate that this phase is an ionic plastic phase.

KW - Diffusion

KW - Ionic plastic crystal

KW - Nuclear magnetic resonance

KW - Phase transitions

KW - Spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=0032047850&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032047850&partnerID=8YFLogxK

M3 - Article

VL - 102

SP - 650

EP - 655

JO - Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics

JF - Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics

SN - 0940-483X

IS - 4

ER -