| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Reversible Stimuli-Induced Mechanofluorochromism by Molecular Assembly of o-Carborane |
| 초록 |
A new type of mechanofluorochromism was observed in an AB2 type molecular array of silole-o-carborane in which meta- or para-positional isomer, Si-m-Cb or Si-p-Cb, was constructed by adding two o-carboranyl units to the 2,5-phenyl groups of silole. Each isomer showed different solid-state photoemission depending on its morphology; the crystals of meta- and para-isomer, CSi-m-Cb and CSi-p-Cb, cast yellow and blue emission, and mechanical grinding turned the emission blue and yellow for ASi-m-Cb and ASi-p-Cb, respectively. The solid-state photoemission studies revealed that the mechanofluorochromism is because of the electronic interaction between the silole and o-carborane units; yellow-colored fluorescence was reminiscent of such an interaction attributed to the charge transfer emission associated with a (silole)δ+ (o-carborane)δ− species. |
| 저자 |
나수원, 최민수, 김소연, 강상욱, 김철훈, 손호진
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| 소속 |
고려대 |
| 키워드 |
Carborane; Mechanofluorochromism; Dyad system
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| E-Mail |
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