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两种近红外二区发射的 AIE/ACQ 效应：结构和密度泛函理论比较分析。

AIE/ACQ Effects in Two DR/NIR Emitters: A Structural and DFT Comparative Analysis.

机构信息

Department of Chemical Sciences, University of Napoli Federico II, 80126 Napoli, Italy.

Department of Agriculture, University of Napoli Federico II, Portici 80055 Portici NA, Italy.

出版信息

Molecules. 2018 Aug 4;23(8):1947. doi: 10.3390/molecules23081947.

DOI:10.3390/molecules23081947
PMID:30081544
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6222639/
Abstract

The effects of aggregation-induced emission (AIE) and of aggregation caused quenching (ACQ) were observed and discussed on two solid materials based on a phenylenevinylene (PV) and a dicyano-PV structure. The brightest emitter in solid films shows a high fluorescence quantum yield in the deep red/near IR (DR/NIR) region (75%). The spectroscopic properties of the two crystalline solids have been described and compared in terms of crystallographic data and time dependent DFT analysis. The influence of the cyano-substituents on AIE/ACQ mechanism activation was discussed.

摘要

观察并讨论了基于苯并[1,2-b:4,5-b']二噻吩（PV）和二氰基-PV 结构的两种固体材料的聚集诱导发光（AIE）和聚集导致猝灭（ACQ）效应。在固态薄膜中最亮的发射器在深红光/近红外（DR/NIR）区域（75%）显示出高荧光量子产率。根据晶体学数据和时间相关密度泛函分析，描述并比较了两种晶态固体的光谱性质。讨论了氰基取代基对 AIE/ACQ 机制激活的影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f09d/6222639/c09dde5e9c1a/molecules-23-01947-g010.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f09d/6222639/c09dde5e9c1a/molecules-23-01947-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f09d/6222639/e4245ac5ca5d/molecules-23-01947-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f09d/6222639/e255cabb45ae/molecules-23-01947-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f09d/6222639/1a365d2e4dd4/molecules-23-01947-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f09d/6222639/152724612629/molecules-23-01947-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f09d/6222639/2462183f61de/molecules-23-01947-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f09d/6222639/ba3e7f3876cc/molecules-23-01947-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f09d/6222639/c09dde5e9c1a/molecules-23-01947-g010.jpg

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