Abstract
The structure of four new palladium complexes [Pd(HL 2 )Cl 2 and Pd(L 1–3 ) 2 ] with 3-(2-pyridyl)-5-R-1,2,4-triazoles (R=H, CH3, Ph respectively HL 1 , HL 2 , HL 3 ) was proposed based on IR, NMR, UV spectroscopy and MALDI mass spectrometry data analysis. It is found that the complexation of HL 2 and HL 3 with Pd2+ ions results in a decrease of their fluorescence intensity and it is vice versa in case of HL 1 . Furthermore, the influence of the substituent (R) in the 3-(2-pirydyl)-5-R-1,2,4-triazoles on the fluorescent and protolytic properties of HL 1–3 was investigated.
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