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제123회 대한화학회 학술발표회, 총회 및 기기전시회 안내 A multifunctional selective “turn-on” fluorescent chemosensor for detection of Group IIIA ions Al3+, Ga3+ and In3+

등록일
2019년 2월 13일 10시 06분 13초
접수번호
4026
발표코드
INOR.P-86 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 18일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Inorganic Chemistry
저자 및
공동저자
Pyeong An Kim, Yuna Seo, Cheal Kim*
Fine chemistry, Seoul National University of Science & Technology, Korea
A versatile chemosensor 1 (E)-2-(((8-hydroxy-2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinolin-9-yl)methylene)amino)-1H-benzo[de]isoquinoline-1,3(2H)-dione, based on naphtalimide and julolidine moieties, was developed for a highly distinguishable and selective recognition of group IIIA metal ions (Al3+, Ga3+ and In3+). Sensor 1 exhibited significant ‘off-on’ fluorescence responses at 488 nm in the presence of Al3+ and at 570 nm in the presence of Ga3+ and In3+. The same emission of Ga3+ and In3+ could be distinguished through different color changes (from colorless to yellow for Ga3+ and no color change for In3+). Binding constants of 1 for Ga3+ and In3+ are the highest ones among those previously known for the organic chemosensors, to date. The 2:1 binding structures between 1 and Al3+, Ga3+ and In3+ were proposed by ESI-mass and Job plot, and theoretical calculations.

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