scholarly journals Enhancement of intramolecular charge transfer strength in diphenylamine substituted symmetric 1,3,4-oxadiazole derivatives

RSC Advances ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Fangyi Chen ◽  
Wanxi Zhang ◽  
Zijian Liu ◽  
Lingyan Meng ◽  
Binglian Bai ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Benzene Ring ◽  
Intramolecular Charge Transfer ◽  
Oxadiazole Derivatives

Introduction of a central benzene ring could increase the charge transferred distance, and further contribute to the enhancement of the intramolecular charge transfer strength.

Synthesis and Optical Properties of Asymmetric Naphthylmethylene 1,3,4-Oxadiazole Derivatives

2014 ◽  
Vol 1033-1034 ◽  
pp. 1109-1113
Author(s):  
Ting Feng Tan ◽  
Bian Peng Wu ◽  
Li Gang Bai ◽  
Yan Xia Li ◽  
Ming Jie Zhang
Keyword(s):  
Optical Properties ◽  
Charge Transfer ◽  
Fluorescence Spectroscopy ◽  
Fluorescence Intensity ◽  
Absorption Maximum ◽  
Intramolecular Charge Transfer ◽  
Bathochromic Shift ◽  
Transfer Effect ◽  
Uv Absorption ◽  
Oxadiazole Derivatives

Asymmetric 2-p-nitrophenyl-5-naphthylmethylene-1,3,4-oxadiazole and 2-p-aminophenyl-5-naphthylmethylene-1,3,4-oxadiazole were synthesized and characterized by IR、1HNMR and MS analysis, and their optical properties were detected using UV-vis absorption spectroscopy and fluorescence spectroscopy. The existence of electron-withdrawing oxadiazole units causes a significant bathochromic shift of the UV absorption maximum. The largest UV-absorption peak of target compounds is in the range of 298-317 nm, and a new emission band at 402 nm is formed. The fluorescence intensity is gradually enhanced, which strengthens the intramolecular charge transfer effect between the electron-withdrawing oxadiazole and electron-donating aniline.

Substituent Effect on Intramolecular Charge Transfer of Symmetric Methoxy-Substituted Bi-1,3,4-oxadiazole Derivatives

2017 ◽  
Vol 121 (44) ◽  
pp. 8399-8407 ◽  
Author(s):  
Fangyi Chen ◽  
Wanxi Zhang ◽  
Taiji Tian ◽  
Binglian Bai ◽  
Haitao Wang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Substituent Effect ◽  
Intramolecular Charge Transfer ◽  
Oxadiazole Derivatives

The effect of molecular structure on intramolecular charge-transfer in 1,3,4-oxadiazole derivatives

2019 ◽  
Vol 377 ◽  
pp. 309-317 ◽  
Author(s):  
Lingyan Meng ◽  
Fangyi Chen ◽  
Fu-Quan Bai ◽  
Binglian Bai ◽  
Haitao Wang ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Oxadiazole Derivatives

Dynamic adjustment of emission from both singlets and triplets: the role of excited state conformation relaxation and charge transfer in phenothiazine derivates

2021 ◽  
Author(s):  
Weidong Qiu ◽  
Xinyi Cai ◽  
Mengke Li ◽  
Liangying Wang ◽  
Yanmei He ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Dynamic Adjustment ◽  
Twisted Intramolecular Charge Transfer

Dynamic adjustment of emission behaviours by controlling the extent of twisted intramolecular charge transfer character in excited state.

Steric Effects on Intramolecular Charge Transfer Fluorescence of Benzo[b]thiophene-1,1-dioxide Bridged Macrocages

2021 ◽  
Author(s):  
Keita Nobuhara ◽  
Yusuke Inagaki ◽  
Wataru Setaka
Keyword(s):  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Fluorescence Properties ◽  
Steric Effects ◽  
Sensor Molecules

Intramolecular charge transfer (ICT) fluorescence has been widely investigated and exploited in sensor molecules. However, steric effects on the ICT fluorescence properties have rarely been reported so far, although research...

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