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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 7
BKCSDE 35(7)
July 20, 2014 

Dihydrogen Phosphate Selective Anion Receptor Based on Acylhydrazone
T. Senthil Pandian, Jongmin Kang*
Anion receptor, Acylhydrazone, Hydrogen bonds
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 (H2PO4 −). 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 H2PO4 − > Br− > Cl− in highly polar solvent such as DMSO.
2025 - 2028
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