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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 11
BKCSDE 33(11)
November 20, 2012 

Selective Fe2+ Ion Recognition Using a Fluorescent Pyridinyl-benzoimidazole-derived Ionophore
Jeong Ah Lee, Geun Hee Eom, Hyun Min Park, Ju Hoon Lee, Hyesun Song, Chang Seop Hong, Sungho Yoon*, Cheal Kim*
Fluorescent chemical sensor, 6-Br-ppmbi, Fe2+ cation
Fluorescent organic molecules that respond to changes in the Fe2+ concentration with selectivity to other abundant di-valent metal ions will offer the ability to understand the dynamic fluctuations of the Fe2+ ion in interesting media. The use of 6-Br-ppmbi, derived from 2-pyridin-2-yl-benzimidazole, for metal ion-selective fluorescence recognition was investigated. Screening of the main group and transition metal ions showed exclusive selectivity for Fe2+ ions even in the presence of competing metal ions. In addition, the requirement for low concentrations of probe molecules to detect certain amounts of Fe2+ ions make this sensor unique compared to previously reported Fe2+ ion sensors.
3625 - 3628
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