期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 651, 期 -, 页码 894-901出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2023.07.133
关键词
Host-guest interactions; Singlet oxygen; Photooxidation; Energy transfer; Light-harvesting
In this study, a triphenylamine modified cyanophenylenevinylene derivative (TPCI) was designed and synthesized, which self-assembled with cucurbit[6]uril (CB[6]) and cucurbit[8]uril (CB[8]) to form supramolecular complexes (TPCI-CB[6]) and supramolecular polymers (TPCI-CB [8]) in aqueous solution. The supramolecular assemblies of TPCI-CB[6] and TPCI-CB[8] not only exhibited high singlet oxygen (1O2) production efficiency as photosensitizers, but also had excellent fluorescence properties in aqueous solution, realizing their application in the construction of artificial light-harvesting systems.
In the present work, we have designed and synthesized a triphenylamine modified cyanophenylenevinylene derivative (TPCI), which can self-assembly with cucurbit[6]uril (CB[6]) and cucurbit[8]uril (CB[8]) through host-guest interactions to form supramolecular complexes (TPCI-CB[6]) and supramolecular polymers (TPCI-CB [8]) in the aqueous solution. The supramolecular assemblies of TPCI-CB[6] and TPCI-CB[8] not only exhibited high singlet oxygen (1O2) production efficiency as photosensitizers, but also realized the application in the construction of artificial light-harvesting systems due to the excellent fluorescence properties in the aqueous solution. The production efficiency of 1O2 has been effectively improved after the addition of CB[6] and CB[8] for TPCI, which were applied as efficient photosensitizers in the photooxidation reactions of thioanisole and its derivatives with the highest yield of 98% in the aqueous solution. The excellent fluorescence properties of TPCICB[6] and TPCI-CB[8] can be used as energy donors in artificial light-harvesting systems with energy acceptors sulforhodamine 101 (SR101) and cyanine dye 5 (Cy5), in which one-step energy transfer processes of TPCI-CB
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