fulltext.study @t Gmail

Selective photoinduced single or double electron reduction of perylenebisimides

Paper ID Volume ID Publish Year Pages File Format Full-Text
27267 44013 2012 5 PDF Available
Title
Selective photoinduced single or double electron reduction of perylenebisimides
Abstract

Selective single and double electron reduction of two soluble perylenebisimides was performed by irradiating these compounds in benzonitrile solutions containing triethylamine 10−2 M. Lamp irradiation in the absence of oxygen generates, consecutively, the corresponding radical anion and dianion as persistent species, depending of the irradiation time. These negative PBI species were persistent long enough to be characterized by optical and EPR spectroscopies. Laser flash photolysis determines that the kinetics of PBI reduction follows two first order processes assigned to the presence of two different populations of solvated electrons in the medium. The fastest reduction takes place in tens of microseconds and the slowest occurs with a lifetime longer than hundred microseconds.

► Photolysis of a triethylamine solution in benzonitrile at 355 nm ejects electrons. ► Perylenebisimides act as electron acceptors and form persistent radical anions. ► Radical anions can be characterized by steady-state EPR spectroscopy. ► Radical anions can be further irradiated to perylene dianions.

Keywords
Photoinduced electron transfer; Perylenebisimide; Persistent radical anion; Perylene dianion
First Page Preview
Selective photoinduced single or double electron reduction of perylenebisimides
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 231, Issue 1, 1 March 2012, Pages 28–32
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