Solid-state intercalation of naphthalene and anthracene into alkylammonium-montmorillonites

Makoto Ogawa, Hidenori Shirai, Kazuyuki Kuroda, Chuzo Kato

Research output: Contribution to journalArticlepeer-review

68 Citations (Scopus)


Intercalation of naphthalene and anthracene into alkyltrimethylammonium (CnH2n+1(CH3)3N+; n = 8, 12, 14, 16, and 18)-montmorillonites was carried out by novel solid-solid reactions at room temperature. Octyltrimethylammonium(C8)-montmorillonite did not form an intercalation compound with either naphthalene or anthracene. Naphthalene was intercalated into both dodecyltrimethylammonium(C12)- and octadecyltrimethylammonium(C18)-montmorillonites to give intercalation compounds. On the other hand, the solid-solid reaction between dodecyltrimethylammonium(C12)- or tetradecyltrimethylammonium(C14)-montmorillonite and anthracene gave only partly intercalated compounds while hexadecyltrimethylammonium(C16)- and octadecyltrimethylammonium(C18)-montmorillonites gave single phase intercalation compounds. The hydrophobic interactions between alkylammonium-montmorillonites and the aromatic compounds are thought to be the driving force for the solid-state intercalation. The extent of the increase in the basal spacing may also be involved in the different reactivity.

Original languageEnglish
Pages (from-to)485-490
Number of pages6
JournalClays and Clay Minerals
Issue number5
Publication statusPublished - 1992 Oct
Externally publishedYes


  • Alkylammonium-montmorillonites
  • Anthracene
  • Intercalation
  • Naphthalene
  • Solid-state intercalation

ASJC Scopus subject areas

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


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