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A Fluorescence discrimination of γ-amino carboxylates with (o-carboxamido)trifluoroacetophenones and the other aminocarboxylates

등록일
2009년 8월 24일 16시 06분 24초
접수번호
1579
발표코드
37P160포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 <발표Ⅲ>
발표형식
포스터
발표분야
유기화학
저자 및
공동저자
전미은, 안교한
포항공과대학교 화학과, Korea
The molecular recognition and sensing of anions have attracted much research interest with multiple disciplines,1 because anions play significant roles in biological and chemical processes,2 and have implications in medicine, catalysis and environment.3 For the development of recognition and sensing probes for such anions, the insightful design of recognition motifs and corresponding fluorescence sensors has been pursued. Recently, we have demostrated a novel anion binding motif based on o-CATFA((o-carboxamido)trifluoroacetophenone) that recognizes anions particularly α-amino carbnoxylates. Its o-carboxamido group forms H-bonding with anionic adducts at ortho position to the trifluoroacetyl group. This H-bonding stabilization through intramolecular H-bonding, which seems to suppress otherwise possible quenching processes by anionic species as well as increases the conformational rigidity of the adducts, thereby resulting in the fluorescence enhancement.4 In this presentation, we wish to develop the previous fluorescence turn-on sensor through modification of anthracene fluorophore. This modificated Fluorescence sensor is expected to recognize the other type of amino carboxylates particularly GABA(γ-aminobutanoic acid) or other aminocarboxylates.

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