Dihydrogen Phosphate Selective Anion Receptor Based on Acylhydrazone

Anion receptor 1 based on acylhydrazone has been designed and synthesized. UV-vis and $^1H$ NMR titration showed that receptor 1 is selective receptor for dihydrogen phosphate ($H_2PO_4{^-}$). Dihydrogen phosphate was complexed by the receptor 1 via at least 4 hydrogen bonding interactions, contribu...

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Bibliographic Details
Published inBulletin of the Korean Chemical Society Vol. 35; no. 7; pp. 2025 - 2028
Main Authors Pandian, T. Senthil, Kang, Jongmin
Format Journal Article
LanguageKorean
Published 2014
Subjects
Hydrogen bonds
Acylhydrazone
Anion receptor
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Summary:Anion receptor 1 based on acylhydrazone has been designed and synthesized. UV-vis and $^1H$ NMR titration showed that receptor 1 is selective receptor for dihydrogen phosphate ($H_2PO_4{^-}$). Dihydrogen phosphate was complexed by the receptor 1 via at least 4 hydrogen bonding interactions, contributing from two amide N-Hs and two imine C-Hs. In addition, nitrogen in the aromatic ring could make 2 additional hydrogen bondings with OH groups in the dihydrogen phosphate. However, the receptor 1 could make only 4 hydrogen bonds with halides. Therefore, receptor 1 could bind anions through hydrogen bonds with a selectivity in the order of $H_2PO_4{^-}$ > $Br^-$ > $Cl^-$ in highly polar solvent such as DMSO.
Bibliography:KISTI1.1003/JNL.JAKO201420947475597
ISSN:0253-2964
1229-5949