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

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

Chem Commun (Camb). 2020 Jan 21;56(7):1038-1041. doi: 10.1039/c9cc08906c. Epub 2019 Dec 18.

Authors

Jihee Cho¹, Peter Verwilst², Minjung Kang², Jia-Lin Pan², Amit Sharma², Chang Seop Hong², Jong Seung Kim², Sanghee Kim¹

Affiliations

¹ College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea. pennkim@snu.ac.kr.
² Department of Chemistry, Korea University, Seoul 02841, Korea. jongskim@korea.ac.kr cshong@korea.ac.kr.

PMID: 31850459
DOI: 10.1039/c9cc08906c

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.