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Switching the Photoluminescence and Electrochemiluminescence of Liposoluble Porphyrin in Aqueous Phase by Molecular Regulation.
Angewandte Chemie International Edition ( IF 16.6 ) Pub Date : 2020-09-04 , DOI: 10.1002/anie.202010216
Yinpan Zhang 1 , Yaqi Zhao 1 , Zhengang Han 1 , Ruizhong Zhang 2 , Peiyao Du 2 , Yanxia Wu 1 , Xiaoquan Lu 1
Affiliation  

By a facile peripheral decoration of 5‐(4‐aminophenyl)‐10,15,20‐triphenylporphyrin (ATPP) with inherent aggregation‐induced emission (AIE) active tetraphenylethene (TPE), a versatile AIEgenic porphyrin derivative (ATPP‐TPE) was obtained, which greatly abolishes the detrimental π–π stacking and thus surmounts the notorious aggregation‐caused quenching (ACQ) effect of ATPP in aqueous phase. The photoluminescence of ATPP‐TPE is 4.5‐fold stronger than ATPP at aggregation state. Moreover, an unequivocal aggregation induced electrochemiluminescence (AIECL) of ATPP‐TPE was found to be seriously dependent on its aggregation property in aqueous solution with efficiency of 34 %, which is 6 times higher than pure ATPP. The versatility of this molecular structure modulation strategy along with the ACQ‐to‐AIE transformation in this work provides direction to guide for applying liposoluble porphyrins in aqueous phase by designs of synthetic porphyrin AIEgens.

中文翻译:

通过分子调控在水相中切换脂溶性卟啉的光致发光和电化学致发光。

通过对5-(4-氨基苯基)-10,15,20-三苯基卟啉(ATPP)进行简单的外围装饰,并具有固有的聚集诱导发射(AIE)活性四苯基乙烯(TPE),可以形成一种通用的AIEgenic卟啉衍生物(ATPP-TPE)所获得的结果极大地消除了有害的π-π堆积,从而克服了ATPP在水相中臭名昭著的聚集引起的猝灭(ACQ)效应。在聚集状态下,ATPP-TPE的光致发光强度比ATPP强4.5倍。此外,发现ATPP-TPE的明确聚集诱导的电化学发光(AIECL)严重依赖于其在水溶液中的聚集性质,效率为34%,是纯ATPP的6倍。
更新日期:2020-09-04
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