abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 08월 18일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제108회 대한화학회 학술발표회, 총회 및 기기전시회 안내 The synthesis and recognition properties of Fe3+ highly selective on new rhodamine-crown ether chemosensor

등록일
2011년 8월 1일 16시 53분 39초
접수번호
1367
발표코드
Ⅲ-ORGN.P-251 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 <발표Ⅲ>
발표형식
포스터
발표분야
유기화학
저자 및
공동저자
최진욱
대구대학교 화학과, Korea
The development of fluorescent chemosensors for recognition of environmentally and biologically important cations has been a research area of particular interest. A new rhodamine 6G fluorescent sensors were synthesized by a two-step condensation reaction of rhodamine 6G and hydrazine, ethylenediamine, 1,3-diaminopropane?crown ether compounds. which makes it difficult to develop a turn-on fluorescent sensor and more noteworthy to develop a sensitive one. Ring-closed rhodamine-crown derivatives are colorless and nonfluorescent, whereas the ring-open forms are strongly fluorescent and pink in color. Several successful attempts have been made to develop selective fluorescent sensors based on rhodamine-crown for Cu2+, Pb2+, Hg2+, and Fe2+. In all these sensors, the mechanism involves the formation of a ring-opened form of the spirolactam upon cation binding, resulting in fluorescence enhancement (500-560 nm). high selectivity and sensitivity is observed over other metal ions and is shown to be due mainly to the spirolactam ring-opening power of Fe3+.

상단으로