An integrated approach for the interpretation of emission fluorescence of DMABN-Crown derivatives in polar environments

Silvia Carlotto, Raffaele Riccò, Camilla Ferrante, Michele Maggini, Antonino Polimeno, Caterina Benzi, Vincenzo Barone

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

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.

Originalspracheenglisch
Seiten (von - bis)204-209
Seitenumfang6
FachzeitschriftChemical Physics Letters
Jahrgang467
Ausgabenummer1-3
DOIs
PublikationsstatusVeröffentlicht - 15 Dez 2008
Extern publiziertJa

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Fluorescence
Derivatives
fluorescence
sinks
degrees of freedom
potential energy
hydrodynamics
Potential energy surfaces
charge transfer
Excited states
evaluation
sensors
Charge transfer
estimates
metals
Hydrodynamics
Metals
excitation
benzonitrile
Sensors

ASJC Scopus subject areas

  • !!Physical and Theoretical Chemistry
  • !!Physics and Astronomy(all)

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An integrated approach for the interpretation of emission fluorescence of DMABN-Crown derivatives in polar environments. / Carlotto, Silvia; Riccò, Raffaele; Ferrante, Camilla; Maggini, Michele; Polimeno, Antonino; Benzi, Caterina; Barone, Vincenzo.

in: Chemical Physics Letters, Jahrgang 467, Nr. 1-3, 15.12.2008, S. 204-209.

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Carlotto, Silvia ; Riccò, Raffaele ; Ferrante, Camilla ; Maggini, Michele ; Polimeno, Antonino ; Benzi, Caterina ; Barone, Vincenzo. / An integrated approach for the interpretation of emission fluorescence of DMABN-Crown derivatives in polar environments. in: Chemical Physics Letters. 2008 ; Jahrgang 467, Nr. 1-3. S. 204-209.
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AU - Carlotto, Silvia

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AU - Polimeno, Antonino

AU - Benzi, Caterina

AU - Barone, Vincenzo

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