Record number :
1925447
Title of article :
An integrated approach for the interpretation of emission fluorescence of DMABN-Crown derivatives in polar environments
Author/Authors :
Carlotto، نويسنده , , Silvia and Riccٍ، نويسنده , , Raffaele and Ferrante، نويسنده , , Camilla and Maggini، نويسنده , , Michele and Polimeno، نويسنده , , Antonino and Benzi، نويسنده , , Caterina and Barone، نويسنده , , Vincenzo، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
6
From page :
204
To page :
209
Abstract :
We analyze the behavior in several solvents of a perspective metal sensor, namely benzonitrile (DMABN-Crown5), a derivative of 4-(N,N-dimethylamino) benzonitrile (DMABN) that exhibits a dual fluorescence due to a twisted intra-molecular charge transfer process. To this end, we extend a stochastic modeling previously employed for DMABN, in which internal degrees of freedom are coupled with an effective solvent relaxation variable. Evaluation of potential energy surfaces using advanced QM approach and estimates of dissipative parameters based on hydrodynamic arguments are discussed. Emission fluorescence is calculated by solving a diffusion/sink/source equation for the stationary population of excited state, and compared to experimentally measured emission fluorescence of DMABN-Crown5.
Journal title :
Chemical Physics Letters
Serial Year :
2008
Link To Document :
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