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

被引：39
|
作者：
Caruso, Ugo [1 ]
Panunzi, Barbara [2 ]
Diana, Rosita [1 ]
Concilio, Simona [3 ]
Sessa, Lucia [4 ]
Shikler, Rafi [5 ]
Nabha, Shiran [5 ]
Tuzi, Angela [1 ]
Piotto, Stefano [4 ]
机构：
[1] Univ Napoli Federico II, Dept Chem Sci, I-80126 Naples, Italy
[2] Univ Napoli Federico II, Dept Agr, I-80055 Portici, NA, Italy
[3] Univ Salerno, Dept Ind Engn, I-84084 Fisciano, SA, Italy
[4] Univ Salerno, Dept Pharm, I-84084 Fisciano, SA, Italy
[5] Ben Gurion Univ Negev, Dept Elect & Comp Engn, POB 653, IL-84105 Beer Sheva, Israel
来源：
MOLECULES | 2018年 / 23卷 / 08期
关键词：
DR/NIR emitter; PLQY; AIE/ACQ; DFT; AGGREGATION-INDUCED EMISSION; PHOTOLUMINESCENCE; FLUORESCENCE; ZINC(II); COMPLEXES; SIZE; DYE; RED;
D O I：
10.3390/molecules23081947
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
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.
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收藏
页数：14
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