fulltext.study @t Gmail

Aryl-modified ruthenium bis(terpyridine) complexes: Quantum yield of 1O2 generation and photocleavage on DNA

Paper ID Volume ID Publish Year Pages File Format Full-Text
28688 44085 2006 9 PDF Available
Title
Aryl-modified ruthenium bis(terpyridine) complexes: Quantum yield of 1O2 generation and photocleavage on DNA
Abstract

Six Ru(II)bis(tpy) (tpy = 2,2′:6′,2″-terpyridine) complexes, functionalized with one or two 2-naphthyl, 1-pyrenyl, or 9-anthracenyl at 4′-position of terpyridine respectively, were investigated with emphasis on their 1O2 generation quantum yields and photocleavage capabilities on DNA. For naphthyl and pyrenyl modified complexes, the lowest energy excited state is 3MLCT, and therefore they behave very similarly to the parent complex, [Ru(tpy)2]2+, having very low 1O2 generation quantum yields. In contrast, for anthracenyl modified complexes, the lowest energy excited state is anthracene-localized 3ππ* state, as a result, they exhibit extremely high 1O2 generation quantum yields (0.96 and 0.71 for bis- and mono-substituted complexes, respectively) and potent photodamage abilities on calf thymus DNA, suggesting their promising applications in 1O2-involved processes, such as DNA photocleavage.

Keywords
Calf thymus DNA; Photocleave; Ruthenium; Singlet oxygen
First Page Preview
Aryl-modified ruthenium bis(terpyridine) complexes: Quantum yield of 1O2 generation and photocleavage on DNA
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 177, Issues 2–3, 25 January 2006, Pages 286–294
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