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NMR and kinetic investigations of the multistep photochromism of 3-thienyl-naphthopyrans

Paper ID Volume ID Publish Year Pages File Format Full-Text
28440 44075 2006 9 PDF Available
Title
NMR and kinetic investigations of the multistep photochromism of 3-thienyl-naphthopyrans
Abstract

The photocolouration under UV irradiation and the thermal relaxation after irradiation of 3-phenyl-3H-naphtho[2,1-b]pyrans linked to one, two, or three thiophene units in 3 position of the pyran moiety have been investigated by NMR. The characterization of each of the four transoid photomerocyanines, as well as the kinetic parameters of photochemical and thermal reactions were obtained and discussed.

Keywords
Photochromism; Kinetics analysis; NMR spectroscopy
First Page Preview
NMR and kinetic investigations of the multistep photochromism of 3-thienyl-naphthopyrans
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 183, Issues 1–2, 30 September 2006, Pages 70–78
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering