Synthesis, Structure, Photophysical Porperties, and Sensing of Metal Complexes of Bis(salicyaldimine) Dianion

• Main Authors: Shao-Huai Wu, 吳少淮
• Other Authors: Jing-Yun Wu
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/2z73c4

碩士 === 國立暨南國際大學 === 應用化學系 === 103 === Four metal complexes of bis(salicyaldimine) dianion, MII(saltBuenpy) (MII = ZnII, NiII, CoII, PdII), have been synthesized and characterized. While Ni(saltBuenpy) exhibit a simple, well know structure in the solid-state, Zn(saltBuenpy) shows an interesting open vast structure of tetrameric assembly [Zn(saltBuenpy)]4 in the solid-state. Photoluminescence studies of Zn(saltBuenpy) exhibit an aggregation-caused quenching (ACQ) effect in DMSO solution. Complex Zn(saltBuenpy) displayed sensing properties in detection of organic nitro compounds (nitrobenzene, NB; 1,4-dinitrobenzene, DNB; 4-nitrotoluene, NT; 2,4-dinitrotoluene, DNT; nitromethane, NM; 2,3-dimethyl-2,3-dinitrobutane, DMDNB) and amines (aniline; m-phenylenediamine; 1-butanamine; 4-aminopyridine; 3-(aminomethyl)pyridine; 4-(aminomethyl)pyridine) through fluorescence quenching, except in the case of 4-(aminomethyl)pyridine that causes fluorescence enhancement. In addition, Zn(saltBuenpy) can also be used to detect Ag+ salts of different anions, as a result of noticeable fluorescene quenching, with exception of Ag(OAc). Detailed studies confirm that anions have interference upon detection of fluorescence change in intensity.