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 Complexation between calix[4]pyrrole and the merocyanine form of photochromic spiropyran dyes: determination of the equilibira

등록일
2011년 1월 28일 14시 43분 51초
접수번호
0003
발표코드
Ⅱ-ORGN.P-204 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 <발표Ⅱ>
발표형식
포스터
발표분야
유기화학
저자 및
공동저자
임현우, 금삼록
고려대학교 소재화학과, Korea

The interaction between a merocyanine (MC) dye and calix[4]pyrrole (CP) through hydrogen bonding is well known(eq.1). This MC-CP complex can then be destroyed by the anion, such as halogen anion, reforming a Cl--CP complex and a colored MC species. This was verified that the formation of the complex MC1-CP and displacement of the complex with Cl- anion with the production of the colored MC species back. It’s also very well known that thermo- and photochromic spiropyran is equilibriated with the open-form merocyanine MC2 (eq.2), after exposure to the light. However, equilibrium constants can be hardly obtained since the exact extinction coefficient of MC2 is not known. Thus a new method is applied to get an exact extinction coefficient value of the MC2 species and hence determined equilibrium constant Ke, utilizing the MC-CP complexation.


상단으로