Fluorescence emission properties of 8-azaisoguanine and its N-methyl derivatives: Ground- and excited-state tautomerism

2012 ◽  
Vol 237 ◽  
pp. 64-70 ◽  
Author(s):  
Jacek Wierzchowski ◽  
Grzegorz Mędza ◽  
Jerzy Sepioł ◽  
Mariusz Szabelski ◽  
David Shugar
Keyword(s):  
Excited State ◽  
Fluorescence Emission ◽  
Emission Properties ◽  
Methyl Derivatives

Synthesis and fluorescence emission properties of 1,3,6,8-tetrakis(9H-fluoren-2-yl)pyrene derivative

2010 ◽  
Vol 2010 (5) ◽  
pp. 278-282 ◽  
Author(s):  
Jian-Yong Hu ◽  
Hidetaka Hiyoshi ◽  
Jung-Hee Do ◽  
Takehiko Yamato
Keyword(s):  
Fluorescence Emission ◽  
Emission Properties

scholarly journals Nitrile-Substituted 2-(Oxazolinyl)-Phenols: Minimalistic Excited-State Intramolecular Proton Transfer (ESIPT)-Based Fluorophores

2020 ◽  
Author(s):  
Dominik Göbel ◽  
Daniel Duvinage ◽  
Tim Stauch ◽  
Boris Nachtsheim
Keyword(s):  
Excited State ◽  
Solid State ◽  
Proton Transfer ◽  
Density Functional ◽  
Intramolecular Proton Transfer ◽  
Crystal Structure Analysis ◽  
Quantum Yields ◽  
Functional Theory ◽  
Emission Properties ◽  
Emission Enhancement

Herein, we present minimalistic single-benzene, excited-state intramolecular proton transfer (ESIPT) based fluorophores as powerful solid state emitters. The very simple synthesis gave access to all four regioisomers of nitrile-substituted 2(oxazolinyl)phenols (MW = 216.1). In respect of their emission properties they can be divided into aggregation-induced emission enhancement (AIEE) luminophores (1-CN and 2-CN), dual state emission (DSE) emitters (3-CN) and aggregation-caused quenching (ACQ) fluorophores (4‐CN). Remarkably, with compound 1-CN we discovered a minimalistic ESIPT based fluorophore with extremely high quantum yield in the solid state ΦF = 87.3% at λem = 491 nm. Furthermore, quantum yields in solution were determined up to ΦF = 63.0%, combined with Stokes shifts up till 11.300 cm–1. Temperature dependent emission mapping, crystal structure analysis and time-dependent density functional theory (TDDFT) calculations gave deep insight into the origin of the emission properties.<br>

Fluorescence turn-on detection of cysteine over homocysteine and glutathione based on “ESIPT” and “AIE”

2015 ◽  
Vol 7 (12) ◽  
pp. 5028-5033 ◽  
Author(s):  
Hualong Liu ◽  
Xiaoyan Wang ◽  
Yu Xiang ◽  
Aijun Tong
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Intramolecular Proton Transfer ◽  
Aggregation Induced Emission ◽  
Emission Properties ◽  
Turn On ◽  
Fluorescence Turn On

A turn-on detection of cysteine (Cys) based on excited-state intramolecular proton transfer and aggregation-induced emission properties of a salicylaldehyde azine derivative has been established.

Transport and fluorescence emission properties of photoresponsive ligands

1999 ◽  
Vol 111 (3) ◽  
pp. 527-542
Author(s):  
P S Zacharias ◽  
S Ameerunisha
Keyword(s):  
Fluorescence Emission ◽  
Emission Properties

Fluorescence emission properties of 8-aza analogues of caffeine, theophylline, and related N-alkyl xanthines

2009 ◽  
Vol 17 (6) ◽  
pp. 2585-2591 ◽  
Author(s):  
Grzegorz Mędza ◽  
Jacek Wierzchowski ◽  
Borys Kierdaszuk ◽  
David Shugar
Keyword(s):  
Fluorescence Emission ◽  
Emission Properties
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