fulltext.study @t Gmail

Synthesis and chlorine atom position effect on the properties of unsymmetrical photochromic diarylethenes

Paper ID Volume ID Publish Year Pages File Format Full-Text
28719 44087 2008 10 PDF Available
Title
Synthesis and chlorine atom position effect on the properties of unsymmetrical photochromic diarylethenes
Abstract

Unsymmetrical photochromic diarylethenes 1o–4o have been synthesized, which diarylethenes 1o–3o have a chlorine atom at ortho-, meta- and para-position of the terminal phenyl ring, respectively. The substituent position effect of chlorine atom on their properties, including photochromism both in solution and in the single crystalline phase and their electrochemical properties were investigated in detail. The results elucidated that the chlorine atom and its substituted position had significantly affected on the absorption characteristics, photochromic reactivity as well as the electrochemical performances of these diarylethene compounds. When the chlorine atom was introduced into the phenyl ring of these diarylethene systems, the cycloreversion quantum yields were effectively depressed; but, the molar absorption coefficients of the open-ring isomer and the differences of oxidation potential onsets between the open- and closed-ring isomers of these diarylethenes were significantly increased. Moreover, the position of the chlorine atom had also influenced evidently the above optical and electrochemical features.

Graphical abstractFour unsymmetrical photochromic diarylethenes have been synthesized. Effect of the substituent position on their properties, including photochromism both in solution and in the single crystalline phase and their electrochemical properties were investigated in detail.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Photochromism; Diarylethene; Synthesis; Photochemical and electrochemical property
First Page Preview
Synthesis and chlorine atom position effect on the properties of unsymmetrical photochromic diarylethenes
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 196, Issue 1, 30 April 2008, Pages 84–93
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