期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 47, 页码 20868-20872出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202008505
关键词
cycloparaphenylene; fluorophores; photoluminescence; supramolecular assembly
资金
- Ministry of Science and Technology of China [2017YFA0204902, 2018YFA0209500]
- National Natural Science Foundation of China [21771155, 21721001]
The radial conjugated pi-system of cycloparaphenylenes (CPPs) makes them intriguing fluorophores and unique supramolecular hosts. However, the bright photoluminescence (PL) of CPPs was limited to the blue light and the supramolecular assembly behavior of large CPPs was rarely investigated. Here we present the synthesis of tetra-benzothiadiazole-based [12]cycloparaphenylene (TB[12]CPP), which exhibits a lime to orange PL with an excellent quantum yield up to 82 % in solution. The PL quantum yield of TB[12]CPP can be further improved to 98 % in polymer matrix. Benefiting from its enlarged size, TB[12]CPP can accommodate a fullerene derivative or concave-convex complexes of fullerene and buckybowl through the combined pi-pi and C-H...pi interactions. The latter demonstrates the first case of a ternary supramolecule of CPPs.
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