Crown ether-appended calix[2]triazolium[2]arene as a macrocyclic receptor for the recognition of the H2PO4− anion

Jihee Cho; Peter Verwilst; Minjung Kang; Jia-Lin Pan; Amit Sharma; Chang Seop Hong; Jong Seung Kim; Sanghee Kim

doi:10.1039/C9CC08906C

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Crown ether-appended calix[2]triazolium[2]arene as a macrocyclic receptor for the recognition of the H₂PO₄⁻ anion†

Jihee Cho,

‡^a Peter Verwilst,

‡^b Minjung Kang,^b Jia-Lin Pan,^b Amit Sharma,

^b Chang Seop Hong,

*^b Jong Seung Kim

*^b and Sanghee Kim

*^a

Author affiliations

* Corresponding authors

^a College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
E-mail: pennkim@snu.ac.kr

^b Department of Chemistry, Korea University, Seoul 02841, Korea
E-mail: jongskim@korea.ac.kr, cshong@korea.ac.kr

Abstract

A crown ether-appended calix[2]triazolium[2]arene, which exhibits excellent selectivity for H₂PO₄⁻ compared to other anions, has been designed and synthesized. The selectivity of the prepared receptor for H₂PO₄⁻ is caused by the stabilization of H₂PO₄⁻ by the neighboring triazolium hydrogen bond donors and crown ether hydrogen bond acceptors.

This article is part of the themed collection: The Mechanics of Supramolecular Chemistry

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Article information

DOI: https://doi.org/10.1039/C9CC08906C
Article type: Communication
Submitted: 14 Nov 2019
Accepted: 11 Dec 2019
First published: 12 Dec 2019

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Chem. Commun., 2020,56, 1038-1041

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Crown ether-appended calix[2]triazolium[2]arene as a macrocyclic receptor for the recognition of the H₂PO₄⁻ anion

J. Cho, P. Verwilst, M. Kang, J. Pan, A. Sharma, C. S. Hong, J. S. Kim and S. Kim, Chem. Commun., 2020, 56, 1038 DOI: 10.1039/C9CC08906C

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