An anti-quinoid structure in dual fluorescence of fluozazene molecule and solvent effect of intramolecular charge transfer

2007 ◽  
Vol 332 (2-3) ◽  
pp. 325-335 ◽  
Author(s):  
Rong-Xing He ◽  
Xiang-Yuan Li
Keyword(s):  
Charge Transfer ◽  
Solvent Effect ◽  
Intramolecular Charge Transfer ◽  
Dual Fluorescence ◽  
Quinoid Structure

A THEORETICAL STUDY ON DUAL FLUORESCENCE OF 4-DIMETHYLAMINOPYRIDINE BY POLARIZABLE CONTINUUM MODEL

2008 ◽  
Vol 07 (04) ◽  
pp. 821-832 ◽  
Author(s):  
JUAN-QIN LI ◽  
XIANG-YUAN LI ◽  
FENG WANG
Keyword(s):  
Charge Transfer ◽  
Density Functional ◽  
Intramolecular Charge Transfer ◽  
Emission Spectra ◽  
Polarizable Continuum Model ◽  
Transfer Model ◽  
Dual Fluorescence ◽  
Field Methods ◽  
Complete Active Space ◽  
Self Consistent Field

Dual fluorescence spectra of 4-dimethylaminopyridine (DMAP) is investigated using time-dependent density functional theory and complete active space self-consistent field methods. Electronic absorption and emission spectra of DMAP have been investigated in three solvents, that is, cyclohexane, chloroform, and acetonitrile. The present study reveals that the dual fluorescence phenomena of DMAP appear in the cases of acetonitrile and chloroform, but not in cyclohexane. The electronic structures of the ground state and the intramolecular charge transfer states are, therefore, studied in order to reveal the insight of dual fluorescence. Our theoretical results suggest that the twisting of dimethylamino moiety in DMAP is necessary for the intramolecular charge transfer. The mechanism of the dual fluorescence of DMAP is discussed based on the twisted intramolecular charge transfer model and the dual fluorescence phenomenon is explained theoretically.

scholarly journals Intramolecular charge transfer in aminobenzonitriles: Requirements for dual fluorescence

1993 ◽  
Vol 65 (8) ◽  
pp. 1745-1750 ◽  
Author(s):  
K. A. Zachariasse ◽  
T. von der Haar ◽  
Axel Hebecker ◽  
Uwe Leinhos ◽  
Wolfgang Kuhnle
Keyword(s):  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Dual Fluorescence

Pyrrolo[2,3-b]quinoxaline with 2-(2-aminoethyl)pyridine chain highly selective fluorescent receptor for Zn2+ exhibiting a dual fluorescence and AIEE in crystalline state

CrystEngComm ◽  
2015 ◽  
Vol 17 (3) ◽  
pp. 498-502 ◽  
Author(s):  
Katarzyna Ostrowska ◽  
Łukasz Dudek ◽  
Jarosław Grolik ◽  
Marlena Gryl ◽  
Katarzyna Stadnicka
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Crystalline State ◽  
Intramolecular Charge Transfer ◽  
Zinc Ion ◽  
Dual Fluorescence ◽  
Aggregation Induced Emission ◽  
Emission Enhancement

The article describes the synthesis of selective dual emissive intramolecular charge transfer (ICT) receptor for zinc ion in acetonitrile, exhibiting aggregation induced emission enhancement (AIEE) in solid state.

Intramolecular charge transfer and dual fluorescence of 4-(dimethylamino)benzonitrile: ultrafast branching followed by a two-fold decay mechanism

2011 ◽  
Vol 13 (33) ◽  
pp. 15182 ◽  
Author(s):  
Pedro B. Coto ◽  
Luis Serrano-Andrés ◽  
Thomas Gustavsson ◽  
Takashige Fujiwara ◽  
Edward C. Lim
Keyword(s):  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Dual Fluorescence ◽  
Decay Mechanism
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