Intercalation of 8-hydroxyquinoline into Al-smectites by solid-solid reactions

Nithima Khaorapapong, Kazuyuki Kuroda, Makoto Ogawa*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


Tris(8-hydroxyquinoline)aluminum(III) complexes (Alq3), one of the molecules studied most widely for organic light-emitting devices, were formed in the interlayer spaces of smectites by solid-solid reactions between Al-smectites (Al-montmorillonite and Al-synthetic saponite (Sumecton) and 8-hydroxyquinoline (8Hq) at room temperature. The intercalation of 8-hydroxyquinoline molecules into Al-smectites was demonstrated by powder XRD, FTIR, DTA, TG, TG-MS, and chemical analysis. The coordination of the ligand to the interlayer Al cations was proved by FTIR, UV-Vis, and photoluminescence spectroscopies. The luminescence intensity of Alq3-Sumecton was much greater than that of Alq3-montmorillonite, and this was ascribed to the very small amount of quenching impurities in Sumecton.

Original languageEnglish
Pages (from-to)428-434
Number of pages7
JournalClays and Clay Minerals
Issue number4
Publication statusPublished - 2002 Aug
Externally publishedYes


  • 8-Hydroxyquinoline
  • Montmorillonite
  • Solid-State intercalation
  • Sumecton SA
  • Synthetic saponite
  • Tris(8-hydroxyquinoline)aluminum(III) Complex

ASJC Scopus subject areas

  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth and Planetary Sciences (miscellaneous)


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