Novel calix [4] arene-based receptors with bis-squaramide moieties for colorimetric sensing of anions via two different interaction modes

…, M Zhang, C Deng, Y Guan, J Gong, D Zhu, Y Pan…

Index: Jin, Can; Zhang, Man; Deng, Chao; Guan, Yangfan; Gong, Jun; Zhu, Dunru; Pan, Yi; Jiang, Juli; Wang, Leyong Tetrahedron Letters, 2013 , vol. 54, # 8 p. 796 - 801

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Citation Number: 21

Abstract

Novel calix [4] arene-based anion receptors 1–3 with bis-squaramide moieties were designed and synthesized. Their sensing properties with various anions were investigated by UV–vis, ESI-MS, and 1H NMR spectra. The experimental results revealed that there were two types of interaction modes where receptor 1 bound biologically important H2PO4−, F−, and AcO− ions selectively over other anions in the hydrogen bonding interaction mode, ...