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

Makoto Ogawa, Hidenori Shirai, Kazuyuki Kuroda, Chuzo Kato

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    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



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

    ASJC Scopus subject areas

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

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