Preparation of a novel organic derivative of the layered perovskite bearing HLaNb2O7·nH2O interlayer surface trifluoroacetate groups

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

研究成果: Article査読

32 被引用数 (Scopus)


Trifluoroacetate (TFA, CF3COO) groups have been successfully bound to the interlayer surface of a protonated form of Dion-Jacobson-type layered perovskite, HLaNb2O7·nH2O (HLaNb), via a reaction between its n-propoxy derivative and trifluoroacetic acid (TFAH, CF3COOH). The interlayer distance increases approximately to 1.8 nm upon treatment with TFAH, and varies in the range from ∼1.7 to ∼2.0 nm depending on the amount of water adsorbed in the interlayer space. The high stability of the guest species upon dispersal in organic solvents and the change in the infrared (IR) spectrum profile with respect to that of TFAH indicate that the guest species are TFA groups bound to the surface of perovskite-like slabs of HLaNb. The interlayer distance indicates that the TFA groups possess a bilayer arrangement, and a unidentate type of coordination is proposed based on consideration on the coordination geometry.

ジャーナルMaterials Research Bulletin
出版ステータスPublished - 2006 4 13

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学


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