Organic derivatives of the layered perovskite HLaNb2O 7·xH2O with polyether chains on the interlayer surface: Characterization, intercalation of LiClO4, and ionic conductivity

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Abstract

Polyether chains have been successfully grafted onto the interlayer surface of a Dion-Jacobson-type layered perovskite, HLaNb2O 7·xH2O, by a reaction between an n-decoxy-derivative of HLaNb2O7·xH2O and CH3(OCH2CH2)mOH (1 ≤ m ≤ 4). After the reaction, the interlayer distance decreases from 2.73 nm to 1.58 (m = 1), 2.07 (m = 2), 2.28 (m = 3), and 2.69 (m = 4) nm. Solid-state 13C CP/MAS NMR spectroscopy indicates that the CH3(OCH2CH 2)mO- groups are bound to the interlayer surface of HLaNb2O7·xH2O. The n-decoxy groups are completely removed by the reaction with CH3(OCH2CH 2)mOH (m = 2 and 3), while a part of the n-decoxy groups remain after the reaction with CH3(OCH2CH 2)mOH (m = 1 and 4). Upon treatment of the CH 3(OCH2CH2)mO-grafted HLaNb 2O7·xH2O (m = 2 or 3) with a CH 3(OCH2CH2)mOH solution of LiClO 4, the interlayer distance decreases further to 1.78 (m = 2) and 2.01 (m = 3) nm. Inductively coupled plasma emission spectrometry reveals the presence of lithium (0.22 (m = 2) and 0.24 (m = 3) per [LaNb2O 7]). The presence of ClO4 - ions is demonstrated by Raman spectroscopy, and the position of the ν1(A1) band indicates the presence of isolated ClO4 - ions in the interlayer space. After treatment with a LiClO4 solution, CH 3(OCH2CH2)mO-grafted HLaNb 2O7·xH2O (m = 2 and 3) exhibits ionic conductivity, and no clear temperature dependence is observed.

Original languageEnglish
Pages (from-to)3581-3587
Number of pages7
JournalJournal of Materials Chemistry
Volume18
Issue number30
DOIs
Publication statusPublished - 2008

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Polyethers
Ionic conductivity
Intercalation
intercalation
Perovskite
ion currents
interlayers
Ions
Derivatives
Inductively coupled plasma
Lithium
Spectrometry
Nuclear magnetic resonance spectroscopy
Raman spectroscopy
methylidyne
spectroscopy
ions
Temperature
lithium
perovskite

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Chemistry
  • Materials Science(all)

Cite this

@article{f396140627784a9dbaf3450174330a57,
title = "Organic derivatives of the layered perovskite HLaNb2O 7·xH2O with polyether chains on the interlayer surface: Characterization, intercalation of LiClO4, and ionic conductivity",
abstract = "Polyether chains have been successfully grafted onto the interlayer surface of a Dion-Jacobson-type layered perovskite, HLaNb2O 7·xH2O, by a reaction between an n-decoxy-derivative of HLaNb2O7·xH2O and CH3(OCH2CH2)mOH (1 ≤ m ≤ 4). After the reaction, the interlayer distance decreases from 2.73 nm to 1.58 (m = 1), 2.07 (m = 2), 2.28 (m = 3), and 2.69 (m = 4) nm. Solid-state 13C CP/MAS NMR spectroscopy indicates that the CH3(OCH2CH 2)mO- groups are bound to the interlayer surface of HLaNb2O7·xH2O. The n-decoxy groups are completely removed by the reaction with CH3(OCH2CH 2)mOH (m = 2 and 3), while a part of the n-decoxy groups remain after the reaction with CH3(OCH2CH 2)mOH (m = 1 and 4). Upon treatment of the CH 3(OCH2CH2)mO-grafted HLaNb 2O7·xH2O (m = 2 or 3) with a CH 3(OCH2CH2)mOH solution of LiClO 4, the interlayer distance decreases further to 1.78 (m = 2) and 2.01 (m = 3) nm. Inductively coupled plasma emission spectrometry reveals the presence of lithium (0.22 (m = 2) and 0.24 (m = 3) per [LaNb2O 7]). The presence of ClO4 - ions is demonstrated by Raman spectroscopy, and the position of the ν1(A1) band indicates the presence of isolated ClO4 - ions in the interlayer space. After treatment with a LiClO4 solution, CH 3(OCH2CH2)mO-grafted HLaNb 2O7·xH2O (m = 2 and 3) exhibits ionic conductivity, and no clear temperature dependence is observed.",
author = "Yosuke Takeda and Toshiyuki Momma and Tetsuya Osaka and Kazuyuki Kuroda and Yoshiyuki Sugahara",
year = "2008",
doi = "10.1039/b802003e",
language = "English",
volume = "18",
pages = "3581--3587",
journal = "Journal of Materials Chemistry",
issn = "0959-9428",
publisher = "Royal Society of Chemistry",
number = "30",

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TY - JOUR

T1 - Organic derivatives of the layered perovskite HLaNb2O 7·xH2O with polyether chains on the interlayer surface

T2 - Characterization, intercalation of LiClO4, and ionic conductivity

AU - Takeda, Yosuke

AU - Momma, Toshiyuki

AU - Osaka, Tetsuya

AU - Kuroda, Kazuyuki

AU - Sugahara, Yoshiyuki

PY - 2008

Y1 - 2008

N2 - Polyether chains have been successfully grafted onto the interlayer surface of a Dion-Jacobson-type layered perovskite, HLaNb2O 7·xH2O, by a reaction between an n-decoxy-derivative of HLaNb2O7·xH2O and CH3(OCH2CH2)mOH (1 ≤ m ≤ 4). After the reaction, the interlayer distance decreases from 2.73 nm to 1.58 (m = 1), 2.07 (m = 2), 2.28 (m = 3), and 2.69 (m = 4) nm. Solid-state 13C CP/MAS NMR spectroscopy indicates that the CH3(OCH2CH 2)mO- groups are bound to the interlayer surface of HLaNb2O7·xH2O. The n-decoxy groups are completely removed by the reaction with CH3(OCH2CH 2)mOH (m = 2 and 3), while a part of the n-decoxy groups remain after the reaction with CH3(OCH2CH 2)mOH (m = 1 and 4). Upon treatment of the CH 3(OCH2CH2)mO-grafted HLaNb 2O7·xH2O (m = 2 or 3) with a CH 3(OCH2CH2)mOH solution of LiClO 4, the interlayer distance decreases further to 1.78 (m = 2) and 2.01 (m = 3) nm. Inductively coupled plasma emission spectrometry reveals the presence of lithium (0.22 (m = 2) and 0.24 (m = 3) per [LaNb2O 7]). The presence of ClO4 - ions is demonstrated by Raman spectroscopy, and the position of the ν1(A1) band indicates the presence of isolated ClO4 - ions in the interlayer space. After treatment with a LiClO4 solution, CH 3(OCH2CH2)mO-grafted HLaNb 2O7·xH2O (m = 2 and 3) exhibits ionic conductivity, and no clear temperature dependence is observed.

AB - Polyether chains have been successfully grafted onto the interlayer surface of a Dion-Jacobson-type layered perovskite, HLaNb2O 7·xH2O, by a reaction between an n-decoxy-derivative of HLaNb2O7·xH2O and CH3(OCH2CH2)mOH (1 ≤ m ≤ 4). After the reaction, the interlayer distance decreases from 2.73 nm to 1.58 (m = 1), 2.07 (m = 2), 2.28 (m = 3), and 2.69 (m = 4) nm. Solid-state 13C CP/MAS NMR spectroscopy indicates that the CH3(OCH2CH 2)mO- groups are bound to the interlayer surface of HLaNb2O7·xH2O. The n-decoxy groups are completely removed by the reaction with CH3(OCH2CH 2)mOH (m = 2 and 3), while a part of the n-decoxy groups remain after the reaction with CH3(OCH2CH 2)mOH (m = 1 and 4). Upon treatment of the CH 3(OCH2CH2)mO-grafted HLaNb 2O7·xH2O (m = 2 or 3) with a CH 3(OCH2CH2)mOH solution of LiClO 4, the interlayer distance decreases further to 1.78 (m = 2) and 2.01 (m = 3) nm. Inductively coupled plasma emission spectrometry reveals the presence of lithium (0.22 (m = 2) and 0.24 (m = 3) per [LaNb2O 7]). The presence of ClO4 - ions is demonstrated by Raman spectroscopy, and the position of the ν1(A1) band indicates the presence of isolated ClO4 - ions in the interlayer space. After treatment with a LiClO4 solution, CH 3(OCH2CH2)mO-grafted HLaNb 2O7·xH2O (m = 2 and 3) exhibits ionic conductivity, and no clear temperature dependence is observed.

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