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Cu2+ induced charge transfer switch by choosing the right cyclodextrin environment

Paper ID Volume ID Publish Year Pages File Format Full-Text
27926 44050 2010 6 PDF Available
Title
Cu2+ induced charge transfer switch by choosing the right cyclodextrin environment
Abstract

Compounds like trans-2-[4-(dimethylamino)styryl]benzothiazole (DMASBT) take part in compound induced cyclodextrin (CD) nanotubular suprastructure formation. The molecule undergoes differential encapsulation inside the CD cavities of different sizes and hence experience restricted freedom in its movement. DMASBT is capable of undergoing intramolecular charge transfer in the excited state in polar media. This physical phenomenon has been exploited to study the Cu2+ sensing capability of encapsulated DMASBT. The intramolecular charge transfer is found to get switched on employment of Cu2+ ions with the proper choice of cyclodextrin molecules for encapsulation. The differential encapsulation of the compound inside the CD cavities is held to be responsible for this behavior. The complexation takes place in the ground state and because of the difference in charge density on the ligating centers; the system is capable to show a switching behavior in the twisted intramolecular charge transfer (TICT) emission of the guest molecule inside the various cyclodextrin moieties.

Keywords
Charge transfer; Switch; Cyclodextrin; Nanotubes
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Cu2+ induced charge transfer switch by choosing the right cyclodextrin environment
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 212, Issue 1, 30 April 2010, Pages 43–48
Authors
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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