CHANDAN KUMAR MANNA
Articles written in Journal of Chemical Sciences
Volume 132 All articles Published: 16 April 2020 Article ID 0064
SUBRATA JANA RAHUL NASKAR CHANDAN KUMAR MANNA TAPAN KUMAR MONDAL
A palladium(II) complex, [Pd(L)Cl] (1) with a new ONS donor azo–thioether ligand (L) (where L = 2,4-dihydroxy-5-((2-(methylthio)phenyl)diazenyl)(phenyl)(phenyl)methanone) is successfully synthesized. The ligand and complex are thoroughly characterized by several spectroscopic techniques. The geometry ofthe complex is confirmed by single-crystal X-ray analysis. Electronic structure and spectral properties are interpreted by DFT and TDDFT calculations. The interaction of the complex with CT DNA was investigated by UV-vis method and binding constant is found to be 5.42 x 104 M-1. Competitive binding titration withethidium bromide (EB) by fluorescence titration method was carried out to understand the efficiency of the complex to displace EB from EB-DNA complex. From fluorescence titration Stern-Volmer dynamic quenching constants, Ksv was calculated and is found to be 4.15 x 104 M-1. Cyclic voltammogram of thecomplex exhibits significant shifting of the reduction couple to the negative potential region and decrease in current height in the presence of CT DNA
Volume 132, 2020
All articles
Continuous Article Publishing mode
Click here for Editorial Note on CAP Mode
© 2021-2022 Indian Academy of Sciences, Bengaluru.