Selective Metal Ion Sensing of Bipyridine-Bisterpyridine containing Fluorescent Dyes (다중 피리딘 구조를 가지는 형광염료의 금속 이온 반응성에 대한 연구)

Hye Jin Zo (조혜진); 김아롱; Sooyeon Jeong (정수연); Jong Seung Park (박종승)

Selective Metal Ion Sensing of Bipyridine-Bisterpyridine containing Fluorescent Dyes

Textile Coloration and Finishing
Abbr : Text. Color. and Finish.
2013, 25(4), pp.254-261
Publisher : The Korean Society Of Dyers And Finishers
Research Area : Engineering > Fiber Engineering > Dyeing Engineering

Hye Jin Zo ¹, 김아롱 ¹, Sooyeon Jeong ², Jong Seung Park ¹

¹동아대학교
²한국전기연구원

Accredited

ABSTRACT

In this study, we synthesized a new fluorescent polypyridyl dye 2 containing a 2,2'-bipyridine in the center and two 2,2':6',2''-terpyridines at both ends. When exposed to various metal ions, the dye 2 showed selective fluorescence responses. In the presence of Cu2+ and Ni2+, it exhibited a highly effective fluorescence quenching, leading to large Ksv values of up to 105. In response to most other metal ions including Al3+, in contrast, its fluorescence changes little, showing a small Ksv value at 102. Meanwhile, the compound 2 revealed a differentiated fluorescence response to Zn2+, which is evidenced by a large red shift of > 100 nm. Such a red shift from the ion binding is attributed to the planarization of the bipyridyl unit extending the effective conjugation length in conjunction. A polypyridyl compound will find important usefulness in chemosensor application due to its selective binding to metal ions. Subsequent research concerned with modified derivatives is currently going on, as a way to provide high solubility even after metal-complexing.

KEYWORDS

2, 2'-bipyridine, 2, 2':6', 2''-terpyridines, fluorescence quenching, stern-volmer equation, polypyridyl dye, chemosensor

Citation status

* References for papers published after 2023 are currently being built.

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