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A Study of the Time-Resolved Fluorescence Spectrum and Red Edge Effect of ANF in a Room-Temperature Ionic Liquid
Journal article   Peer reviewed

A Study of the Time-Resolved Fluorescence Spectrum and Red Edge Effect of ANF in a Room-Temperature Ionic Liquid

Zhonghan Hu and Claudio J Margulis
The journal of physical chemistry. B, Vol.110(23), pp.11025-11028
06/15/2006
DOI: 10.1021/jp061652y
PMID: 16771357

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Abstract

In a recent article, we have analyzed using molecular dynamics simulations the steady-state red edge effect (REE) observed by Samanta and co-workers , when the fluorescent probe 2-amino-7-nitrofluorene (ANF) is photoexcited at different wavelengths in 1-butyl-3-methylimidazolium ([BMIM+]) hexafluorophosphate ([PF6 -]). In this letter, we predict the time- and wavelength-dependent emission spectra of ANF in the same ionic solvent. From the analysis of our simulated data, we are able to derive an approximate time scale for reorganization of the solvent around the solute probe. The effect that slow varying local liquid environments have on the overall time-dependent signal is also discussed.

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