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Laboratory of Coordination Chemistry, International Key Laboratory of Shenyang Inorganic Molecule-Based Chemicals, Shenyang University of Chemical Technology, Shenyang, 110142, P. R. China
; Tel: +86-24-89385016
Dalton Trans., 2012,41, 11187-11194
07 May 2012,
15 Jun 2012
First published online
18 Jun 2012
Two complexes [Pd(L1)(en)]2·4H2O (1), [Pd(L2)(en)]·2H2O (2), (L1 = pyridine-2,3-dicarboxylic acid, L2 = pyrazine-2,3-dicarboxylic acid, and en = ethylenediamine) have been synthesized and characterized using IR, 1H NMR and element analysis. X-ray analyses of complexes 1 and 2 revealed that 1 belongs to the triclinic system with space group P(2), and 2 belongs to the monoclinic system with space group P2(1)/n. The binding of the complexes with HC-DNA (HeLa cells DNA, which was extracted by ourselves) were measured by fluorescence spectrum and viscometry. Gel electrophoresis assay demonstrates the ability of the complexes to cleave the extracted HC-DNA. The complexes exhibit a higher cytotoxicity against tumor cells as against normal cells in vitro. Further more, apoptotic tests indicate that the complexes have an apoptotic effect on HeLa cells.
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