Tetraphenylethylene-Based Tetradentate Azolium Salts: Synthesis and Selective Recognition for Ions

Abstract

2), were synthesized and characterized. Recognitions of 1 for anions and 2 for cations were studied through fluorescence spectra, UV/vis spectra, HRMS, 1 H NMR and infrared spectroscopies. The results revealed that 1 was able to differentiate 2 4 H POfrom other anions, and 2 was able to differentiate Ag ＋ from other cations via fluorescence method.

Tetraphenylethene-based macrocycles with dual-ring topology: synthesis, structures, and applications

“…66 Liu et al synthesized and characterized a tetradentate imidazolium salt 52 based on TPE (Scheme 8a) with multiple binding sites. 67 Compound 52 selectively recognized H 2 PO 4 − through the C–H⋯O hydrogen bond during the recognition process. The results indicated that compound 52 exhibited high sensitivity and selectivity for detecting H 2 PO 4 − .…”