Organic paraelectrics resulting from tautomerization coupled with proton-transfer

Tadashi Sugawara; Tomoyuki Mochida; Akira Miyazaki; Akira Izuoka; Naoki Sato; Yoko Sugawara; Kenzo Deguchi; Yutaka Moritomo; Yoshinori Tokura

doi:10.1016/0038-1098(92)90141-U

Organic paraelectrics resulting from tautomerization coupled with proton-transfer

Tadashi Sugawara^*, Tomoyuki Mochida, Akira Miyazaki, Akira Izuoka, Naoki Sato, Yoko Sugawara, Kenzo Deguchi, Yutaka Moritomo, Yoshinori Tokura

^*Corresponding author for this work

Applied Chemistry

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

2-Carboxy-3-hydroxyphenalenone was found to behave as paraelectrics at room temperatur under ambient pressure, exhibiting an antiferroelectric transition at 40K. The paraelectric property is derived from an inversion of a transverse component of its dipole moment based on the rapid tautomerization in the solid state. A C_2V local symmetry of the molecule revealed by a crystallographic analysis was interpreted in terms of a dynamic disorder based on solid state ¹³CNMMR (CP/MAS) measurements. The Curie constant determined from a Curie-Weiss plot turned out to be consistent with the above mechanism.

Original language	English
Pages (from-to)	665-668
Number of pages	4
Journal	Solid State Communications
Volume	83
Issue number	9
DOIs	https://doi.org/10.1016/0038-1098(92)90141-U
State	Published - 1992/09

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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title = "Organic paraelectrics resulting from tautomerization coupled with proton-transfer",

abstract = "2-Carboxy-3-hydroxyphenalenone was found to behave as paraelectrics at room temperatur under ambient pressure, exhibiting an antiferroelectric transition at 40K. The paraelectric property is derived from an inversion of a transverse component of its dipole moment based on the rapid tautomerization in the solid state. A C2V local symmetry of the molecule revealed by a crystallographic analysis was interpreted in terms of a dynamic disorder based on solid state 13CNMMR (CP/MAS) measurements. The Curie constant determined from a Curie-Weiss plot turned out to be consistent with the above mechanism.",

author = "Tadashi Sugawara and Tomoyuki Mochida and Akira Miyazaki and Akira Izuoka and Naoki Sato and Yoko Sugawara and Kenzo Deguchi and Yutaka Moritomo and Yoshinori Tokura",

year = "1992",

month = sep,

doi = "10.1016/0038-1098(92)90141-U",

language = "英語",

volume = "83",

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journal = "Solid State Communications",

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TY - JOUR

T1 - Organic paraelectrics resulting from tautomerization coupled with proton-transfer

AU - Sugawara, Tadashi

AU - Mochida, Tomoyuki

AU - Miyazaki, Akira

AU - Izuoka, Akira

AU - Sato, Naoki

AU - Sugawara, Yoko

AU - Deguchi, Kenzo

AU - Moritomo, Yutaka

AU - Tokura, Yoshinori

PY - 1992/9

Y1 - 1992/9

N2 - 2-Carboxy-3-hydroxyphenalenone was found to behave as paraelectrics at room temperatur under ambient pressure, exhibiting an antiferroelectric transition at 40K. The paraelectric property is derived from an inversion of a transverse component of its dipole moment based on the rapid tautomerization in the solid state. A C2V local symmetry of the molecule revealed by a crystallographic analysis was interpreted in terms of a dynamic disorder based on solid state 13CNMMR (CP/MAS) measurements. The Curie constant determined from a Curie-Weiss plot turned out to be consistent with the above mechanism.

AB - 2-Carboxy-3-hydroxyphenalenone was found to behave as paraelectrics at room temperatur under ambient pressure, exhibiting an antiferroelectric transition at 40K. The paraelectric property is derived from an inversion of a transverse component of its dipole moment based on the rapid tautomerization in the solid state. A C2V local symmetry of the molecule revealed by a crystallographic analysis was interpreted in terms of a dynamic disorder based on solid state 13CNMMR (CP/MAS) measurements. The Curie constant determined from a Curie-Weiss plot turned out to be consistent with the above mechanism.

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U2 - 10.1016/0038-1098(92)90141-U

DO - 10.1016/0038-1098(92)90141-U

M3 - 学術論文

AN - SCOPUS:0026912163

SN - 0038-1098

VL - 83

SP - 665

EP - 668

JO - Solid State Communications

JF - Solid State Communications

IS - 9

ER -

Organic paraelectrics resulting from tautomerization coupled with proton-transfer

Abstract

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