Reactions of alkoxyl derivatives of a layered perovskite with alcohols: Substitution reactions on the interlayer surface of a layered perovskite

Hiromi Suzuki, Kazuya Notsu, Yosuke Takeda, Wataru Sugimoto, Yoshiyuki Sugahara

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

Organic derivatives of a layered perovskite compound, HLaNb2O7·xH2O (HLN), with interlayer surfaces possessing n-alkoxyl groups (n-decoxyl and n-propoxyl) have been allowed to react with various alcohols and a diol (ethylene glycol) to form new organic derivatives via substitution reactions. The reaction of an n-propoxyl derivative of HLN with n-decanol leads to the formation of n-decoxyl groups bound to the interlayer surface of the perovskitelike [LaNb2O7] slab. In a similar fashion, the reaction of an n-decoxyl derivative of HLN with 2-propanol results in the formation of an isopropoxyl derivative. The reaction of the n-decoxyl derivative of HLN with tert-butyl alcohol also proceeds, though the reaction is not completed even after 14 days. After the reaction of the n-decoxyl derivative of HLN with ethylene glycol, only one of the two hydroxyl groups in ethylene glycol is reacted, and -OCH2CH2OH groups are present on the interlayer surface. Water is required for proceeding the substitution reaction between the n-propoxyl derivative of HLN and n-decanol, and the reaction mechanism involving hydrolysis of the alkoxyl groups on the interlayer surface and subsequent esterification is proposed.

Original languageEnglish
Pages (from-to)636-641
Number of pages6
JournalChemistry of Materials
Volume15
Issue number3
DOIs
Publication statusPublished - 2003 Feb 11

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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