期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 137, 期 20, 页码 6436-6439出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.5b00877
关键词
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资金
- Adaptable and Seamless Technology Transfer Program through Target-driven RAMP
- D of Japan Science and Technology (JST) [AS262Z02786M]
- RIKEN Junior Research Associate Program
- Grants-in-Aid for Scientific Research [26460008, 15J12176] Funding Source: KAKEN
Mechanochromic organic molecules (MOMs) that exhibit a large difference of fluorescence wavelength between two states have important potential applications, but few such compounds are known. Here, we report a new MOM, cis-ABPX01(0), which shows switchable near-IR and blue fluorescence responses. Detailed spectrophotometric and single-crystal X-ray analyses revealed that the near-IR fluorescence is attributable to fluorescence from slip-stacked dimeric structures in crystals, while the blue fluorescence is attributable to fluorescence from the monomer. Switching between the two is achieved by dynamic structural interconversion between the two molecular packing arrangements in response to mechanical grinding and solvent vapor-fuming.
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