13 C and 27 Al NMR study of complexation between aluminium ion and simple dicarboxylic acids under an acidic condition: New peak assignments of 27 AL NMR spectra of mixed solutions of AL 3+ and simple dicarboxylic acids

Mayumi Etou, Tsutomu Kurisaki, Yoshihiro Okaue, Hisanobu Wakita, Takushi Yokoyama

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

Due to a consideration of Al detoxicification by simple carboxylic acid, the interaction between aluminium ion (Al 3+ ) and three dicarboxylic acids (oxalic acid (OX), malonic acid (MA) and succinic acid (SU)) under an acidic condition was investigated using 13 C and 27 Al NMR techniques. Based on deconvolution of the 27 Al NMR spectra and quantitative 13 C NMR spectra, the structure of each complex was elucidated. Especially, we focused on the peak assignments of 27 Al NMR spectra by combining of the results of quantitative 13 C NMR spectra. In the OX system, the peak at 16 ppm in the 27 Al NMR spectrum originates from Al(OX) 3 3- and Al(OX) 2 - , and the ratio of each complex depends on the OX/Al molar ratio. In the MA system, the three complexes (Al(MA) 2 - , Al(MA) 3 3- and Al(MA) + ) are represented in the peak at 2 ppm in the 27 Al NMR spectrum. The assignment of peaks in the 27 Al NMR spectra in this study differs from those described in previous papers.

本文言語英語
ページ(範囲)843-848
ページ数6
ジャーナルanalytical sciences
29
8
DOI
出版ステータス出版済み - 2013

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

フィンガープリント 「<sup>13</sup> C and <sup>27</sup> Al NMR study of complexation between aluminium ion and simple dicarboxylic acids under an acidic condition: New peak assignments of <sup>27</sup> AL NMR spectra of mixed solutions of AL <sup>3+</sup> and simple dicarboxylic acids」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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