An overview on AIEgen-decorated porphyrins:Current status and applications  

作　　者：Govardhana Babu Bodedla Xunjin Zhu Wai-Yeung Wong 

机构地区：[1]Department of Applied Biology&Chemical Technology and Research Institute for Smart Energy,The Hong Kong Polytechnic University,Hong Kong,P.R.China [2]The Hong Kong Polytechnic University Shenzhen Research Institute,Shenzhen,P.R.China [3]Department of Chemistry,Hong Kong Baptist University,Hong Kong,P.R.China

出　　处：《Aggregate》2023年第3期55-70,共16页聚集体（英文）

基　　金：Science,Technology and Innovation Committee of Shenzhen Municipality,Grant/Award Number:JCYJ20180507183413211;RGC Senior Research Fellowship Scheme,Grant/Award Number:SRFS2021-5S01;National Natural Science Foundation of China,Grant/Award Number:52073242;Hong Kong Polytechnic University;General Research Fund,Grant/Award Number:12304320;Hong Kong Research Grants Council。

摘　　要：One of the major obstacles of porphyrins is the aggregation-caused quenching(ACQ)of photoluminescence due to the strong intermolecularπ–πinteraction of the planar porphyrin core in the solid state.However,ACQ leads to the nonradiative deactivation of the photoexcited states which results in short-lived charge-separated states and thus low photoluminescence and singlet quantum yields.This phenomenon would limit the utilization of porphyrins in near-infrared fluorescent bioimaging,photodynamic therapy,photocatalytic hydrogen evolution,electrochemiluminescence,and chiroptical applications.Hence,to address the ACQ property of porphyrins and enhance the performance of the above applications,a limited number of AIEgen-decorated porphyrins have been designed,synthesized,and tested for their applications.It has been found that the introduction of AIEgens,such as tetraphenylethylene,diphenylacrylonitrile,(3,6-bis-(1-methyl-4-vinylpyridinium)-carbazole diiodide,and iridium motif into the porphyrin core,transformed the porphyrins from ACQ to aggregation-induced emission(AIE)in their solid state due to the reduced strong intermolecularπ–πstacking of porphyrins.Consequently,such porphyrins containing AIE features are employed as potential candidates in the above-mentioned applications.In this review,we summarize the AIEgen-decorated porphyrins which have been published to date,and also discuss the benefits of converting porphyrins from ACQ to AIE for enhanced performance within each application.As far as we know,there is no review that summarizes the structures and applications of AIEgen-decorated porphyrins to date.Therefore,we presume that this review would be helpful to design more efficient AIEgen-decorated porphyrins for a wide range of applications in the future.

关 键 词：aggregation-caused quenching aggregation-induced emission AIE luminogen FRET and solid state emission PORPHYRIN 

分 类 号：O626[理学—有机化学]