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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 34, Number 2
BKCSDE 34(2)
February 20, 2013 

 
Title
Synthesis, Spectroscopic Studies of Binuclear Ruthenium(II) Carbonyl Thiosemicarbazone Complexes Containing PPh3/AsPh3 as Co-ligands: DNA Binding/Cleavage
Author
K. Sampath, S. Sathiyaraj, C. Jayabalakrishnan*
Keywords
Binuclear ruthenium(II) complexes, Benzothiazolyl thiosemicarbazide, DNA interaction, Oxidative DNA cleavage
Abstract
The ruthenium(II) ferrocenyl heterocyclic thiosemicarbazone complexes of the type [RuCl(CO)(EPh3)]2L (where E = P/As; L = binucleating monobasic tridendate thiosemicarbazone ligand) have been investigated. Strutural features were determined by analytical and spectral techniques. Binding of these complexes with CTDNA by absorption spectral study indicates that the ruthenium(II) complexes form adducts with DNA and has intrinsic binding constant in the range of 3.3 × 104 - 1.2 × 105 M−1. The complexes exhibit a remarkable DNA cleavage activity with CT-DNA in the presence of hydrogen oxide and the cleavage activity depends on dosage.
Page
367 - 373
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