fulltext.study @t Gmail

Medium effects on the fluorescence spectra of tertiary aliphatic amines in mixed solvents and supercritical fluids

Paper ID Volume ID Publish Year Pages File Format Full-Text
27784 44042 2008 6 PDF Available
Title
Medium effects on the fluorescence spectra of tertiary aliphatic amines in mixed solvents and supercritical fluids
Abstract

Emission spectra of some tertiary amines were measured in cyclohexane (CH)–tetrahydrofuran (THF) mixtures and in supercritical fluids of CHF3. The emission bands of these amines were found to show large successive red shifts with increasing concentration of polar solvent molecules. This finding was rationalized by considering the consecutive solvation of the polar molecules around the Rydberg excited state of the amine. In order to estimate the degree of solvation, the wavenumbers of the emission maxima were plotted as functions of the THF and CHF3 concentrations. The changes in solvation number with increasing THF and CHF3 concentrations were obtained from the spectral shifts by applying a calculation for the stepwise solvation model.

Keywords
Medium effect; Fluorescence spectra; Tertiary amines; Supercritical fluid; Mixed solvent; Stepwise solvation model
First Page Preview
Medium effects on the fluorescence spectra of tertiary aliphatic amines in mixed solvents and supercritical fluids
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 193, Issues 2–3, 25 January 2008, Pages 260–265
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us