期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 1, 期 44, 页码 7400-7408出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3tc31610f
关键词
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资金
- Swiss National Science Foundation NRP 62 Smart Materials Program [406240-126142]
- University of Zurich
- Swiss National Science Foundation (SNF) [406240_126142] Funding Source: Swiss National Science Foundation (SNF)
The possible incorporation of the redox active, small donor acceptor molecule azulene as a core structure for potential optoelectronic applications has been evaluated. The synthesis and characterization of different isomers of di(phenylethynyl)azulene 1-4 have been successfully carried out. The photophysical properties as well as their stimuli responsive behavior reflecting their corresponding electronic properties were also investigated. The experimental observations show that 2,6-connection (3) exhibits intense luminescence and shows the strongest stimuli responsive behavior upon acid treatment. DFT calculations of 3 reveal the highest contributions of the alkyne substituents at the 2- and 6-position of the azulene to the ground-and excited state that makes the 2,6-connectivity at azulene a very promising candidate for low band-gap conjugated materials.
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