Hydrogen Bonded
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2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Masaki Takahashi ◽  
Nozomu Ito ◽  
Naoki Haruta ◽  
Hayato Ninagawa ◽  
Kohei Yazaki ◽  
...  

AbstractAnions often quench fluorescence (FL). However, strong ionic hydrogen bonding between fluorescent dyes and anion molecules has the potential to control the electronic state of FL dyes, creating new functions via non-covalent interactions. Here, we propose an approach, utilising ionic hydrogen bonding between urea groups and anions, to control the electronic states of fluorophores and develop an aggregation-induced emission enhancement (AIEE) system. The AIEE ionic hydrogen-bonded complex (IHBC) formed between 1,8-diphenylnaphthalene (p-2Urea), with aryl urea groups at the para-positions on the peri-phenyl rings, and acetate ions exhibits high environmental sensitivities in solution phases, and the FL quantum yield (QY) in ion-pair assemblies of the IHBC and tetrabutylammonium cations is more than five times higher than that of the IHBC in solution. Our versatile and simple approach for the design of AIEE dye facilitates the future development of environment-sensitive probes and solid-state emitting materials.


2021 ◽  
Author(s):  
Xiaotong Zhao ◽  
Heng Wang ◽  
Boyang Li ◽  
Wenyao Zhang ◽  
Xiaopeng Li ◽  
...  

Author(s):  
Xiaotong Zhao ◽  
Heng Wang ◽  
Boyang Li ◽  
Wenyao Zhang ◽  
Xiaopeng Li ◽  
...  

Author(s):  
Shi‐Li Li ◽  
Yuan Shen ◽  
Wen Yang ◽  
Yu‐Jie Wang ◽  
Zhikai Qi ◽  
...  
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2021 ◽  
pp. 4431-4453
Author(s):  
Shyam Chand Pal ◽  
Debolina Mukherjee ◽  
Rupam Sahoo ◽  
Supriya Mondal ◽  
Madhab C. Das

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