No 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.

Two tetra-azolium salts 1 and 2 were synthesized and characterized, and their selective recognition of guests (o-phenylenediamine and F−) was investigated.