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

Tatsuya Oshima, Katsutoshi Inoue, Kazuya Uezu, Masahiro Goto

    Research output: Contribution to journalArticlepeer-review

    34 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)137-144
    Number of pages8
    JournalAnalytica Chimica Acta
    Volume509
    Issue number2
    DOIs
    Publication statusPublished - May 3 2004

    All Science Journal Classification (ASJC) codes

    • Analytical Chemistry
    • Biochemistry
    • Environmental Chemistry
    • Spectroscopy

    Fingerprint

    Dive into the research topics of 'Dominant factors affecting extraction behavior of amino compounds by a calix[6]arene carboxylic acid derivative'. Together they form a unique fingerprint.

    Cite this