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학술발표회초록보기

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  • 09월 09일 18시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제106회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Macrocyclic Oligopyrroles as Versatile Molecular Receptors and Chemosensors

등록일
2010년 9월 24일 19시 15분 53초
접수번호
1661
발표코드
ORGN1-7 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 17시 : 30분
발표형식
심포지엄
발표분야
유기화학 - 분자인식화학 국제심포지엄
저자 및
공동저자
이창희
강원대학교 화학과, Korea
Development of molecular receptors possessing high affinity and selectivity for various targeted guest molecules, have been an ongoing challenge in the field of supramolecular chemistry. As results, many model systems utilizing various molecular scaffolds have been developed and studied. Among them, calix[4]pyrroles have been shown to bind anions in organic or aqueous organic media and the isolation of the binding domain from matrix enhances the anion binding affinity of calix[4]pyrroles. Based on these our previous results, we have designed and synthesized various calix[4]pyrrole-based ion/molecular receptors. The calix[4]pyrrole bearing diametrical strap on one side of the molecule showed many interesting binding characteristics depending on the strapping elements. For example, the oligoethers strapped system exhibited anion-modulated, cation selective binding. When pyrrole units were replaced with other aromatic systems, the molecules displayed neutral molecule recognition such as fullerene and TNT. The systematic binding studies indicated that the modified systems are better receptors for anions, ion-pairs and neutral molecules. When the hybrid systems contain chromogenic or fluorogenic reporter groups, the system became excellent chromogenic or fluorogenic chemosensors. The dicyanovinyl-substituted calix[4]pyrroles can be selective ratiometric chemosensors for cyanide anion. The versatility of the calixpyrrole-based chemosensor systems will be presented.

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