세미나

DEPARTMENT OF CHEMISTRY, SEOUL NATIONAL UNIVERSITY.

Stimuli-Responsive Chemical Systems

2013-08-30l 조회수 958
소속 :
연사 : Prof. Dongwhan Lee(Department of Chemistry, SNU)
일시 : 2013-09-05 16:30 ~
장소 : 500동 목알홀
일 시 : 2013년 9월 5일, 오후 4:30
장 소 : 500동 목알홀

-Abstract-
Drawing inspirations from mechanically-triggered opening and closing motions of transmembrane protein complexes, we have been developing a new class of non-rigid aromatic-rich molecules, in which multiple, π-conjugated structural subcomponents undergo correlated bond twisting motions in response to external stimuli. Our primary scientific objective in this research is establishing synthetic routes to a general structural platform that can correlate and amplify externally triggered bond rotations, and converting such mechanical input signals to readable optoelectronic output signals of molecular switches and chemical sensors.
While studies on such molecular systems in solution should be an important first step to understand fundamental structure–property relationships, their ultimate incorporation into various device settings requires efficient assembly strategies to align individual molecules over large domains. Toward this objective, my group is taking both covalent and non-covalent synthetic approaches to bring multiple π-conjugated molecular components in close proximity to facilitate transport of optical excitations and charge carriers. In this presentation will be discussed the advent of this chemistry, our accomplishments, projected evolution, and potential applications.