abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 03월 07일 19시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제107회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Calix[4]pyrroles Bearing Two Crossing Straps and Their Anion Binding Chemistry

등록일
2011년 2월 9일 10시 26분 58초
접수번호
0095
발표코드
Ⅱ-ORGN.P-213 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 <발표Ⅱ>
발표형식
포스터
발표분야
유기화학
저자 및
공동저자
이창희, 유수연
강원대학교 화학과, Korea
Calixpyrroles and related macrocycles are non-planer synthetic anion receptors that have attracted considerable attentions in recent years. Various modifications have been attempted in order to improve the recognition properties including sensitivity and selectivity. As part of our continuing efforts for these direction, we have now reported new strapped-calix[4]pyrrole systems bearing two crossing straps on either side of the calix[4]pyrrole macrocycle. The synthesis was accomplished by acid-catalyzed condensation of bis-dipyrromethanes and acetone. The condensation afforded three different products. Interestingly, the reaction did not give one of the expected condensation product, namely two diametrical crossing straps. The identity of the products was fully characterized by spectroscopic means including proton NMR, HRMS and single crystal X-ray crystallography. The preliminary binding studies indicate that the receptor bearing two cis-crossing straps are excellent fluoride inclusion receptor with anion/receptor stoichiometry of 1/2. However, the receptor bearing two trans-crossing straps showed fast equilibrium with fluoride anion.

상단으로