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제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 pH Dependence on Spectroscopic Properties of Spiropyran-sulfonate Containing Methoxy Group

등록일
2019년 8월 28일 22시 55분 21초
접수번호
1761
발표코드
ORGN.P-428 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 18일 (금요일) 11:00~12:30
발표형식
포스터
발표분야
Organic Chemistry
저자 및
공동저자
Gunhee Kim, Eun Ju Shin*
Department of Chemistry, Sunchon National University, Korea
Spiropyran-sulfonate is a sort of photoacid and is expected to carry out the pH-responsive light-controlled proton transfer reaction. Proton-transfer reactions are very important in biological processes and can be used to regulate chemical reactivity, biological functions, and material properties. Photoacid with stronger acidity in the excited state than in the ground state releases a proton upon light irradiation. Photoacid can be used to control protonations and deprotonations. Light as an external trigger can be applied with high precision of location, timing, and dosage. Reversible protonation and deprotonation reaction of photoacids can be used in molecular motors and acid-catalyzed reactions. We report here absorption and fluorescence spectral changes of sulfonate-functionalized spiropyran with methoxy substituent at various pH under UV or visible light on/off conditions.

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