fulltext.study @t Gmail

Photoinduced electron transfer reactions of highly twisted 1-donor-substituted 2,4,6-triphenylpyridinium cations

Paper ID Volume ID Publish Year Pages File Format Full-Text
29167 44127 2008 7 PDF Available
Title
Photoinduced electron transfer reactions of highly twisted 1-donor-substituted 2,4,6-triphenylpyridinium cations
Abstract

Primary processes of photoelectron transfer reactions of highly twisted 1-mesityl- (1a), 1-(2,5-dimethoxyphenyl)- (1b), and 1-(2,3,5,6-tetramethoxyphenyl)- 2,4,6-triphenylpyridinium (1c) tetrafluoroborates in butyronitrile were investigated. The charge-shift states were observed in all cases. Irradiation of 1a generated the charge-shift state (360, 475, and 550 nm), which was converted with a lifetime of 21 ns into the long-lived triplet state (τ = 2.2 μs) localized on the pyridinium moiety. On the other hand, compounds 1b and 1c generated the charge-shift states (λmax = 440 and 540 and λmax = ca. 550 nm as a broad absorption) of short lifetimes, 35 and 16 ps, respectively, decaying exclusively to the singlet ground states.

Keywords
Photochemistry; Electron transfer; Triphenylpyridinium
First Page Preview
Photoinduced electron transfer reactions of highly twisted 1-donor-substituted 2,4,6-triphenylpyridinium cations
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 194, Issues 2–3, 20 February 2008, Pages 254–260
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