Clays and Clay Minerals

, Volume 40, Issue 5, pp 485–490 | Cite as

Solid-State Intercalation of Naphthalene and Anthracene into Alkylammonium-Montmorillonites

  • Makoto Ogawa
  • Hidenori Shirai
  • Kazuyuki Kuroda
  • Chuzo Kato


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.

Key Words

Alkylammonium-montmorillonites Anthracene Intercalation Naphthalene Solid-state intercalation 


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Copyright information

© The Clay Minerals Society 1992

Authors and Affiliations

  • Makoto Ogawa
    • 1
  • Hidenori Shirai
    • 1
  • Kazuyuki Kuroda
    • 1
  • Chuzo Kato
    • 1
  1. 1.Department of Applied ChemistryWaseda UniversityShinjuku-ku, TokyoJapan

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