Synthesis of two tetra-azolium salts and the recognition performance for guests?
New Journal of Chemistry Pub Date: 2022-11-08 DOI: 10.1039/D2NJ04255J
Abstract
One open tetra-benzimidazolium salt (1) and one cyclic tetra-imidazolium salt (2) based on tetramethylbenzene were synthesized and characterized. The single crystal structure of 1 was determined by X-ray diffraction. The recognition performance of compounds 1 and 2 for guests (1 for o-phenylenediamine (OPD) and 2 for F?) was investigated via fluorescent spectra, UV/vis spectra, 1H NMR, HRMS and IR spectra. In particular, a remarkable color change (from colorless to pale brown) was observed in the recognition process of 2 for F?, which indicated that this recognition can not only be carried out by using an instrument but also by the naked eye, and this had great convenience in practice.
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Journal Name：New Journal of Chemistry
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CAS no.: 89640-58-4
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