期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 4, 期 15, 页码 3256-3267出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6tc00382f
关键词
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资金
- National Natural Science Foundation of China [21271004, 51372003, 21271003, 51432001, 51472002]
- Natural Science Foundation of Anhui Province [1308085MB24]
- Ministry of Education
- Higher Education Revitalization Plan Talent Project
Designing small molecules with large two-photon absorption cross sections is urgently needed. In the present work, six novel chalcone thiophene derivatives were obtained by tuning the terminal electron-withdrawing/donating groups rationally. Their structure-property relationship was investigated both experimentally and theoretically. Crystallographic studies revealed that structural diversity was mainly influenced by ethyloxy groups. Both the alternation of electron-withdrawing/donating groups and the polarity of different solvents had a considerable influence on their photophysical properties. The results of UV-vis and one-/two-photon excited emission spectra showed that the high polarity solvents increased the quantum yields (F) and two-photon absorption cross-sections (sigma) of type C chalcones, while they decreased those of type OC chalcones. It should be highlighted that as they are small molecules, favorable F and s values were obtained. Finally, a preliminary attempt has been made in the biological imaging field, with satisfactory results that C-1 and OC-1 could locate uniformly in a cytosolic membrane-like system.
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