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학술발표회초록보기

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제123회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Solid-state photochromism from molecular assembly of bis-o-carboranyl siloles

등록일
2019년 2월 14일 14시 09분 00초
접수번호
4423
발표코드
INOR.P-109 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 18일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Inorganic Chemistry
저자 및
공동저자
Jin-Hyoung Kim, Su-Jin Kwak, Changhyun Back, Chul Hoon Kim*, Sang Ook Kang, Ho-Jin Son*
Department of Advanced Materials Chemistry, Korea University, Korea
A new type of solid-state photochromism was observed in an AB2 type molecular assembly comprising the central silole and two peripheral o-carborane units, and depending on the assembling positions of those units at adjoining phenyl group two different conformational isomers were formed, namely Si-m-Cb and Si-p-Cb. Each isomer showed different solid-state photochromism depending on its solid state morphology, either in the crystalline or amorphous state. Photophysical studies on each isomer in the solid-state revealed that electronic interaction between silole and o-carborane units determined emission colors. The crystal and DFT optimized structures each accounting for the crystalline and amorphous structure, respectively, and correlated well to the electronic interaction on the molecular assembly in the solid state, thus enabling to predict solid state morphological change, vide infra.

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