Dominant factors affecting extraction behavior of amino compounds by a calix[6]arene carboxylic acid derivative

Tatsuya Oshima, Katsutoshi Inoue, Kazuya Uezu, Masahiro Goto

    研究成果: ジャーナルへの寄稿学術誌査読

    36 被引用数 (Scopus)

    抄録

    A calix[6]arene carboxylic acid derivative was utilized as an extractant for various amino compounds including amino acids. The host compound exhibited a high extractability compared to that of commercially available extractants such as di(2-ethylhexyl)phosphoric acid (D2EHPA). The important factors for amino acid extraction were found to be its cyclic structure and its cavity size, the functional carboxylic groups, and the length of the alkyl chains. The hydrophobicity and the ionic property of guest molecules also affect the extraction efficiency. Calix[6]arene forms a stable complex with a guest molecule by entrapping it into the cavity. The molecular geometries of calixarene before and after extraction were also discussed using computational calculations with the PM3 type of semi-empirical method.

    本文言語英語
    ページ(範囲)137-144
    ページ数8
    ジャーナルAnalytica Chimica Acta
    509
    2
    DOI
    出版ステータス出版済み - 5月 3 2004

    !!!All Science Journal Classification (ASJC) codes

    • 分析化学
    • 生化学
    • 環境化学
    • 分光学

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