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Synthesis, Characterization and Electrochemical Studies on the Interaction Mechanism of Ternary Cu(II) Complex with DNA
Corresponding Author(s) : Yuhua Fan
Asian Journal of Chemistry,
Vol. 25 No. 7 (2013): Vol 25 Issue 7
Abstract
A new ternary complex of Cu(II) with Schiff base 2-hydroxy-1-naphthaldehyde-glycine (KHL) and 8-hydroxyquinoline (OHQ) was synthesized and characterized by elemental analysis, IR, TG-DTG and molar conductance. The composition of the complex was confirmed to be [Cu(L)(OHQ)]·2H2O. The fundamental electrochemical characteristics of the Cu(II) complex have been studied and the interaction of the copper complex and DNA was also studied by cyclic voltammetry and fluorescence spectra. The results of the cyclic voltammetry showed that the Cu(II) complex had an oxidation peak with the oxidation potential at -0.394 V. After the DNA was added, the peak current declined with the peak potential shifting positively. This suggested that the complex combined with DNA in the form of intercalative binding, which was also proved by the fluorescence analysis. The binding ratio between the Cu(II) ternary complex and DNA was calculated to be 1:1 and the binding constant was 4.6 × 102 L mol-1.
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- Y.H. Fan, S.Y. Bi, Y.Y. Li, C.F. Bi and S.T. Xie, Russ. J. Coord. Chem., 33, 772 (2008).
- R.V. Rao, C.P. Rao and E.K. Wegelius, J. Chem. Crystallogr., 33, 139 (2003).
- K. Srinivasan, K. Sankaranarayanan, S. Thangavelu and P. Ramasamy, J. Cryst. Growth, 212, 246 (2000).
- B.A. Teicher, M.J. Abrams and K.W. Rosbe, Cancer Res., 50, 6971 (1990).
- F.M. Antony, R.S. Mahony and M.W. Joyce, Croat. Chem. Acta, 72, 685 (1999).
- P. Lumme and H. Elo, Inorg. Chim. Acta, 94, 241 (1984).
- W.J. Geary, Coord. Chem. Rev., 7, 81 (1971).
- Q.L. Xu, L.J. Sun, H. Li, R.J. Wu and H.G. Wang, Appl. Organomet. Chem., 8, 57 (1994).
- M.T. Carter, M. Rodriguez and A.J. Bard, J. Am. Chem. Soc., 111, 8901 (1989).
- J. Liu, Q.L. Zou and W.J. Zhang, Metal Based Drugs, 7, 343 (2000)
References
Y.H. Fan, S.Y. Bi, Y.Y. Li, C.F. Bi and S.T. Xie, Russ. J. Coord. Chem., 33, 772 (2008).
R.V. Rao, C.P. Rao and E.K. Wegelius, J. Chem. Crystallogr., 33, 139 (2003).
K. Srinivasan, K. Sankaranarayanan, S. Thangavelu and P. Ramasamy, J. Cryst. Growth, 212, 246 (2000).
B.A. Teicher, M.J. Abrams and K.W. Rosbe, Cancer Res., 50, 6971 (1990).
F.M. Antony, R.S. Mahony and M.W. Joyce, Croat. Chem. Acta, 72, 685 (1999).
P. Lumme and H. Elo, Inorg. Chim. Acta, 94, 241 (1984).
W.J. Geary, Coord. Chem. Rev., 7, 81 (1971).
Q.L. Xu, L.J. Sun, H. Li, R.J. Wu and H.G. Wang, Appl. Organomet. Chem., 8, 57 (1994).
M.T. Carter, M. Rodriguez and A.J. Bard, J. Am. Chem. Soc., 111, 8901 (1989).
J. Liu, Q.L. Zou and W.J. Zhang, Metal Based Drugs, 7, 343 (2000)